Retire badblocks(8) and readall(1)
This commit is contained in:
David van Moolenbroek
parent
21e6836bb7
commit
638cb5b3c2
10 changed files with 6 additions and 925 deletions
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@ -2,10 +2,8 @@
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.include <bsd.own.mk>
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SUBDIR= add_route arp ash at \
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backup badblocks banner basename \
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btrace cal \
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cawf cd cdprobe checkhier cpp \
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SUBDIR= add_route arp ash at backup banner basename btrace cal \
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cawf cd cdprobe checkhier cpp \
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chmod chown ci cksum cleantmp clear cmp co \
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comm compress cp crc cron crontab cut \
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dd decomp16 DESCRIBE dev2name devmand devsize df dhcpd \
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@ -22,7 +20,7 @@ SUBDIR= add_route arp ash at \
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nonamed od paste patch pax \
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ping postinstall poweroff pr prep printf printroot \
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profile progressbar pr_routes ps pwd pwdauth \
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ramdisk rarpd rawspeed rcp rdate readall readclock \
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ramdisk rarpd rawspeed rcp rdate readclock \
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reboot remsync rev rget rlogin \
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rotate rsh rshd service setup shar acksize \
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sleep slip sort spell split sprofalyze sprofdiff srccrc \
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@ -1,5 +0,0 @@
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PROG= badblocks
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CPPFLAGS+= -I${NETBSDSRCDIR}/servers
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MAN=
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.include <bsd.prog.mk>
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@ -1,629 +0,0 @@
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/* badblocks - collect bad blocks in a file Author: Jacob Bunschoten */
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/* Usage "badblocks block_special [Up_to_7_blocks]" */
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/* This program is written to handle BADBLOCKS on a hard or floppy disk.
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* The program asks for block_numbers. These numbers can be obtained with
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* the program readall, written by A. Tanenbaum. It then creates a
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* file on the disk containing up to 7 bad blocks.
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*
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* BUG:
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*
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* When the zone_size > block_size it can happen that
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* the zone is already allocated. This means some
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* file is using this zone and may use all the blocks including
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* the bad one. This can be cured by inspecting the zone_bitmap
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* (is already done) and change the file if this zone is used.
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* This means that another zone must be allocated and
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* the inode wich claims this zone must be found and changed.
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <minix/config.h>
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#include <minix/type.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/mount.h>
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#include <dirent.h>
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#include <stdlib.h>
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#include "mfs/const.h" /* must be included before stdio.h */
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#undef printf /* so its define of printf can be undone */
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#include "mfs/type.h"
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#include <string.h>
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#include <stdio.h>
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#define EXTERN extern
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#include "mfs/super.h"
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int main(int argc, char **argv);
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void get_super(void);
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void rw_inode(struct stat * stat_ptr, int rw_mode);
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void get_inode(struct stat * stat_ptr);
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void put_inode(struct stat * stat_ptr);
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long rd_cmdline(int argc, char *argv[]);
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void modify(int nr_blocks);
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void save_blk(block_t blk_num);
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void reset_blks(void);
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void show_blks(void);
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int blk_is_used(block_t blk_num);
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int blk_ok(block_t num);
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void set_bit(zone_t num);
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long rd_num(void);
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int ok(char *str);
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void done(int nr);
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/* Super block table.
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*
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* The disk layout is:
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*
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* Item # block
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* boot block 1
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* super block 1
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* inode map s_imap_blocks
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* zone map s_zmap_blocks
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* inodes (s_ninodes + 1 + inodes_per_block - 1)/inodes_per_block
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* unused
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* data zones (s_nzones - s_firstdatazone) << s_log_zone_size
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*
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*/
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#define OK 0
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#define NOT_OK 1
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#define QUIT 2
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#define READ 0
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#define WRITE 1
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#define HARMLESS 0
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#define DIR_CREATED 1
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#define DEV_MOUNTED 2
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#define FILE_EXISTS 3
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#define SUCCESS 4
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#define BYTE 0377
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#define BLOCK_SIZE 1024
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#define SIZE_OF_INT (sizeof (int) )
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/* Define V_NR_DZONES as the larger of V1_NR_DZONES and V2_NR_DZONES. */
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#if (V1_NR_DZONES > V2_NR_DZONES)
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#define V_NR_DZONES V1_NR_DZONES
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#define V_SMALLER V2_NR_DZONES
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#else
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#define V_NR_DZONES V2_NR_DZONES
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#define V_SMALLER V1_NR_DZONES
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#endif
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/* ====== globals ======= */
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char *dev_name;
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char f_name[] = ".Bad_XXXXXX";
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char file_name[50];
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char dir_name[] = "/tmpXXXXXX";
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block_t block[V_NR_DZONES + 1]; /* last block contains zero */
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int interactive; /* 1 if interactive (argc == 2) */
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int position = 2; /* next block # is argv[position] */
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FILE *f;
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int fd;
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int eofseen; /* set if '\n' seen */
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struct stat stat_buf;
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struct super_block *sp, sbs;
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int inodes_per_block;
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size_t inode_size;
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int v1fs = 0, v2fs = 0; /* TRUE for V1 file system, FALSE for V2 */
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d1_inode d1inode; /* declare a V1 disk inode */
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d1_inode *ip1;
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d2_inode d2inode; /* declare a V2 disk inode */
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d2_inode *ip2;
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/* ====== super block routines ======= */
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void get_super()
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/* Get super_block. global pointer sp is used */
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{
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int rd;
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lseek(fd, (long) BLOCK_SIZE, SEEK_SET); /* seek */
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rd = read(fd, (char *) sp, SUPER_SIZE);
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if (rd != SUPER_SIZE) { /* ok ? */
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printf("Bad read in get_super() (should be %u is %d)\n",
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(unsigned) SUPER_SIZE, rd);
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done(DIR_CREATED);
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}
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if (sp->s_magic == SUPER_MAGIC) {
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/* This is a V1 file system. */
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v1fs = 1; /* file system is not V2 */
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} else if (sp->s_magic == SUPER_V2) {
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/* This is a V2 file system. */
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v2fs = 1; /* this is a V2 file system */
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} else if (sp->s_magic == SUPER_V3) {
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v1fs = v2fs = 0; /* this is a V3 file system */
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} else {
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/* Neither V1 nor V2 nor V3. */
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printf("Bad magic number in super_block (0x%x)\n",
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(unsigned) sp->s_magic);
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done(DIR_CREATED);
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}
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}
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/* ========== inode routines =========== */
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void rw_inode(stat_ptr, rw_mode)
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struct stat *stat_ptr;
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int rw_mode;
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{
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int rwd;
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ino_t i_num;
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block_t blk, offset;
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i_num = stat_ptr->st_ino;
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blk = (block_t) (START_BLOCK + sp->s_imap_blocks + sp->s_zmap_blocks);
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blk += (block_t) ((i_num - 1) / inodes_per_block);
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blk *= (block_t) (BLOCK_SIZE);/* this block */
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offset = (block_t) ((i_num - 1) % inodes_per_block);
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offset *= (block_t) (inode_size); /* and this offset */
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lseek(fd, (off_t) (blk + offset), SEEK_SET); /* seek */
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/* Pointer is at the inode */
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if (v1fs) {
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/* This is a V1 file system. */
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if (rw_mode == READ) { /* read it */
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rwd = read(fd, (char *) ip1, inode_size);
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} else { /* write it */
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rwd = write(fd, (char *) ip1, inode_size);
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}
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} else {
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/* This is a V2 file system. */
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if (rw_mode == READ) { /* read it */
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rwd = read(fd, (char *) ip2, inode_size);
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} else { /* write it */
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rwd = write(fd, (char *) ip2, inode_size);
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}
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}
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if (rwd != inode_size) { /* ok ? */
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printf("Bad %s in get_inode()\n", (rw_mode == READ) ? "read" :
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"write");
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done(DIR_CREATED);
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}
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}
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void get_inode(stat_ptr)
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struct stat *stat_ptr;
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{
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int cnt;
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rw_inode(stat_ptr, READ);
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if (v1fs) {
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for (cnt = 0; cnt < V1_NR_TZONES; cnt++)
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ip1->d1_zone[cnt] = 0; /* Just to be safe */
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} else {
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for (cnt = 0; cnt < V2_NR_TZONES; cnt++)
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ip2->d2_zone[cnt] = 0; /* Just to be safe */
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}
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}
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void put_inode(stat_ptr)
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struct stat *stat_ptr;
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{
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rw_inode(stat_ptr, WRITE);
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}
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/* ============== main program ================= */
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int main(argc, argv)
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int argc;
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char *argv[];
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{
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int cnt, finished;
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block_t blk_nr;
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struct stat dev_stat;
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FILE *fp;
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int block_size;
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sp = &sbs;
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ip1 = &d1inode;
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ip2 = &d2inode;
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if (argc < 2 || argc > 9) {
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fprintf(stderr, "Usage: %s block_special [up_to_7_blocks]\n", argv[0]);
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done(HARMLESS);
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}
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interactive = (argc == 2 ? 1 : 0);
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/* Do some test. */
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if (geteuid()) {
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printf("Sorry, not in superuser mode \n");
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printf("Set_uid bit must be on or you must become super_user\n");
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done(HARMLESS);
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}
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dev_name = argv[1];
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mktemp(dir_name);
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if (mkdir(dir_name, 0777) == -1) {
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fprintf(stderr, "%s is already used in system\n", dir_name);
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done(HARMLESS);
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}
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/* Mount device. This call may fail. */
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mount(dev_name, dir_name, 0, NULL, NULL);
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/* Succes. dev was mounted, try to umount */
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/* Umount device. Playing with the file system while other processes
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* have access to this device is asking for trouble */
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if (umount(dev_name) == -1) {
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printf("Could not umount device %s.\n", dev_name);
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done(HARMLESS);
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}
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mktemp(f_name);
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/* Create "/tmpXXXXpid/.BadXXpid" */
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strcat(file_name, dir_name);
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strcat(file_name, "/");
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strcat(file_name, f_name);
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if (mount(dev_name, dir_name, 0, NULL, NULL) == -1) { /* this call should work */
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fprintf(stderr, "Could not mount device anymore\n");
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done(HARMLESS);
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}
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if (stat(file_name, &stat_buf) != -1) {
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printf("File %s already exists\n", file_name);
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done(DEV_MOUNTED);
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}
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if ((fp = fopen(file_name, "w")) == NULL) {
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printf("Cannot create file %s\n", file_name);
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done(DEV_MOUNTED);
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}
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chmod(file_name, 0); /* "useless" file */
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if (stat(file_name, &stat_buf) == -1) {
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printf("What? Second call from stat failed\n");
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done(FILE_EXISTS);
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}
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/* Stat buf must be safed. We can now calculate the inode on disk */
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fclose(fp);
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/* ===== the badblock file is created ===== */
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if (umount(dev_name) == -1) {
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printf("Can not umount device anymore??? \n");
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done(DIR_CREATED);
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}
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if ((fd = open(dev_name, O_RDWR)) == -1) {
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printf("Can not open device %s\n", dev_name);
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done(DEV_MOUNTED);
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}
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if (fstat(fd, &dev_stat) == -1) {
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printf("fstat on device %s failed\n", dev_name);
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done(DEV_MOUNTED);
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}
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if ((dev_stat.st_mode & S_IFMT) != S_IFBLK) {
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printf("Device \"%s\" is not a block_special.\n", dev_name);
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done(DEV_MOUNTED);
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}
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get_super();
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if (sp->s_log_zone_size) {
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printf("Block_size != zone_size.");
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printf("This program can not handle it\n");
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done(DIR_CREATED);
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}
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if(v1fs || v2fs) block_size = 1024;
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else block_size = sp->s_block_size;
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/* The number of inodes in a block differs in V1 and V2. */
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if (v1fs) {
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inodes_per_block = V1_INODES_PER_BLOCK;
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inode_size = V1_INODE_SIZE;
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} else {
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inodes_per_block = V2_INODES_PER_BLOCK(block_size);
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inode_size = V2_INODE_SIZE;
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}
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/* If the s_firstdatazone_old field is zero, we have to compute the value. */
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if (sp->s_firstdatazone_old == 0)
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sp->s_firstdatazone =
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START_BLOCK + sp->s_imap_blocks + sp->s_zmap_blocks +
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(sp->s_ninodes + inodes_per_block - 1) / inodes_per_block;
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else
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sp->s_firstdatazone = sp->s_firstdatazone_old;
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get_inode(&stat_buf);
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for (finished = 0; !finished;) {
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if (interactive)
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printf("Give up to %d bad block numbers separated by spaces\n",
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V_SMALLER);
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reset_blks();
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cnt = 0; /* cnt keep track of the zone's */
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while (cnt < V_SMALLER) {
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int tst;
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if (interactive)
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blk_nr = rd_num();
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else
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blk_nr = rd_cmdline(argc, argv);
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if (blk_nr == -1) break;
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tst = blk_ok(blk_nr);
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/* Test if this block is free */
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if (tst == OK) {
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cnt++;
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save_blk(blk_nr);
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} else if (tst == QUIT)
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break;
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}
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if (interactive) show_blks();
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if (!cnt) done(FILE_EXISTS);
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if (interactive) {
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switch (ok("All these blocks ok <y/n/q> (y:Device will change) ")) {
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case OK: finished = 1; break;
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case NOT_OK:
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break;
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case QUIT: done(FILE_EXISTS);
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}
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} else {
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finished = 1;
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}
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}
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modify(cnt);
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close(fd); /* free device */
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done(SUCCESS);
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return(0);
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}
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long rd_cmdline(argc, argv)
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int argc;
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char *argv[];
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{
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if (position == argc) return(-1);
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return(atol(argv[position++]));
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}
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void modify(nr_blocks)
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int nr_blocks;
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{
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int i;
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if (nr_blocks == 0) return;
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if (v1fs) {
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/* This is a V1 file system. */
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for (i = 0; i < nr_blocks; i++) {
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set_bit(block[i]);
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ip1->d1_zone[i] = block[i];
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}
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} else {
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/* This is a V2 file system. */
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for (i = 0; i < nr_blocks; i++) {
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set_bit(block[i]);
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ip2->d2_zone[i] = block[i];
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}
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}
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if (v1fs) {
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ip1->d1_size = (long) (BLOCK_SIZE * nr_blocks); /* give file size */
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ip1->d1_mtime = 0; /* Who wants a file from 1970? */
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} else {
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ip2->d2_size = (long) (BLOCK_SIZE * nr_blocks); /* give file size */
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ip2->d2_atime = ip2->d2_mtime = ip2->d2_ctime = 0;
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}
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put_inode(&stat_buf); /* save the inode on disk */
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}
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static blk_cnt = 0;
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void save_blk(blk_num)
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block_t blk_num;
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{
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block[blk_cnt++] = blk_num;
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}
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void reset_blks()
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{
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int i;
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for (i = 0; i <= V_NR_DZONES; i++)
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block[i] = 0; /* Note: Last block_number is set to zero */
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blk_cnt = 0;
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}
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|
||||
void show_blks()
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < blk_cnt; i++)
|
||||
printf("Block[%d] = %lu\n", i, (unsigned long) block[i]);
|
||||
}
|
||||
|
||||
int blk_is_used(blk_num)
|
||||
block_t blk_num;
|
||||
{ /* return TRUE(1) if used */
|
||||
int i;
|
||||
|
||||
for (i = 0; block[i] && block[i] != blk_num; i++);
|
||||
return(block[i] != 0) ? 1 : 0;
|
||||
}
|
||||
|
||||
|
||||
/* ===== bitmap handling ====== */
|
||||
|
||||
#define BIT_MAP_SHIFT 13
|
||||
#define INT_BITS (SIZE_OF_INT << 3)
|
||||
|
||||
int blk_ok(num) /* is this zone free (y/n) */
|
||||
block_t num;
|
||||
{
|
||||
block_t blk_offset;
|
||||
int rd;
|
||||
int blk, offset, words, bit, tst_word;
|
||||
zone_t z_num;
|
||||
|
||||
if (blk_is_used(num)) {
|
||||
printf("Duplicate block (%lu) given\n", (unsigned long) num);
|
||||
return NOT_OK;
|
||||
}
|
||||
|
||||
/* Assumption zone_size == block_size */
|
||||
|
||||
z_num = num - (sp->s_firstdatazone - 1); /* account offset */
|
||||
|
||||
/* Calculate the word in the bitmap. */
|
||||
blk = z_num >> BIT_MAP_SHIFT; /* which block */
|
||||
offset = z_num - (blk << BIT_MAP_SHIFT); /* offset */
|
||||
words = z_num / INT_BITS; /* which word */
|
||||
|
||||
blk_offset = (block_t) (START_BLOCK + sp->s_imap_blocks); /* zone map */
|
||||
blk_offset *= (block_t) BLOCK_SIZE; /* of course in block */
|
||||
blk_offset += (block_t) (words * SIZE_OF_INT); /* offset */
|
||||
|
||||
|
||||
lseek(fd, (off_t) blk_offset, SEEK_SET); /* set pointer at word */
|
||||
|
||||
rd = read(fd, (char *) &tst_word, SIZE_OF_INT);
|
||||
if (rd != SIZE_OF_INT) {
|
||||
printf("Read error in bitmap\n");
|
||||
done(DIR_CREATED);
|
||||
}
|
||||
|
||||
/* We have the tst_word, check if bit was off */
|
||||
bit = offset % INT_BITS;
|
||||
|
||||
if (((tst_word >> bit) & 01) == 0) /* free */
|
||||
return OK;
|
||||
else {
|
||||
printf("Bad number %lu. ", (unsigned long) num);
|
||||
printf("This zone (block) is marked in bitmap\n");
|
||||
return NOT_OK;
|
||||
}
|
||||
}
|
||||
|
||||
void set_bit(num) /* write in the bitmap */
|
||||
zone_t num;
|
||||
{
|
||||
int rwd;
|
||||
long blk_offset;
|
||||
int blk, offset, words, tst_word, bit;
|
||||
unsigned z_num;
|
||||
|
||||
z_num = num - (sp->s_firstdatazone - 1);
|
||||
|
||||
blk = z_num >> BIT_MAP_SHIFT; /* which block */
|
||||
offset = z_num - (blk << BIT_MAP_SHIFT); /* offset in block */
|
||||
words = z_num / INT_BITS; /* which word */
|
||||
|
||||
blk_offset = (long) (START_BLOCK + sp->s_imap_blocks);
|
||||
blk_offset *= (long) BLOCK_SIZE;
|
||||
blk_offset += (long) (words * SIZE_OF_INT);
|
||||
|
||||
|
||||
lseek(fd, (off_t) blk_offset, SEEK_SET);
|
||||
|
||||
rwd = read(fd, (char *) &tst_word, SIZE_OF_INT);
|
||||
if (rwd != SIZE_OF_INT) {
|
||||
printf("Read error in bitmap\n");
|
||||
done(DEV_MOUNTED);
|
||||
}
|
||||
bit = offset % INT_BITS;
|
||||
if (((tst_word >> bit) & 01) == 0) { /* free */
|
||||
lseek(fd, (off_t) blk_offset, SEEK_SET);
|
||||
tst_word |= (1 << bit); /* not free anymore */
|
||||
rwd = write(fd, (char *) &tst_word, SIZE_OF_INT);
|
||||
if (rwd != SIZE_OF_INT) {
|
||||
printf("Bad write in zone map\n");
|
||||
printf("Check file system \n");
|
||||
done(DIR_CREATED);
|
||||
}
|
||||
return;
|
||||
}
|
||||
printf("Bit map indicates that block %lu is in use. Not marked.\n",
|
||||
(unsigned long) num);
|
||||
/* done(DIR_CREATED); */
|
||||
return;
|
||||
}
|
||||
|
||||
/* ======= interactive interface ======= */
|
||||
|
||||
long rd_num()
|
||||
{ /* read a number from stdin */
|
||||
long num;
|
||||
int c;
|
||||
|
||||
if (eofseen) return(-1);
|
||||
do {
|
||||
c = getchar();
|
||||
if (c == EOF || c == '\n') return(-1);
|
||||
} while (c != '-' && (c < '0' || c > '9'));
|
||||
|
||||
if (c == '-') {
|
||||
printf("Block numbers must be positive\n");
|
||||
exit(1);
|
||||
}
|
||||
num = 0;
|
||||
while (c >= '0' && c <= '9') {
|
||||
num *= 10;
|
||||
num += c - '0';
|
||||
c = getchar();
|
||||
if (c == '\n') eofseen = 1;
|
||||
}
|
||||
return num;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int ok(str)
|
||||
char *str;
|
||||
{
|
||||
int c;
|
||||
|
||||
for (;;) {
|
||||
printf("%s", str);
|
||||
while ((c = getchar()) != EOF &&
|
||||
c != 'y' && c != 'n' && c != 'q')
|
||||
if (c != '\n') printf(" Bad character %c\n", (char) c);
|
||||
switch (c) {
|
||||
case EOF:
|
||||
return QUIT;
|
||||
case 'y':
|
||||
return OK;
|
||||
case 'n':
|
||||
return NOT_OK;
|
||||
case 'q': return QUIT;
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void done(nr)
|
||||
int nr;
|
||||
{
|
||||
switch (nr) {
|
||||
case SUCCESS:
|
||||
case FILE_EXISTS:
|
||||
unlink(file_name);
|
||||
case DEV_MOUNTED:
|
||||
umount(dev_name);
|
||||
case DIR_CREATED:
|
||||
rmdir(dir_name);
|
||||
case HARMLESS:;
|
||||
}
|
||||
sync();
|
||||
exit(nr == SUCCESS ? 0 : 1);
|
||||
}
|
||||
|
|
@ -1,4 +0,0 @@
|
|||
PROG= readall
|
||||
MAN=
|
||||
|
||||
.include <bsd.prog.mk>
|
||||
|
|
@ -1,193 +0,0 @@
|
|||
/* readall - read a whole device fast Author: Andy Tanenbaum */
|
||||
|
||||
/* Readall reads all the blocks on a device as fast as it can. If it hits
|
||||
* an error, it stops reading in large units and reads one block at a time.
|
||||
* It reports on all errors it finds.
|
||||
*
|
||||
* If the -b flag is given, the output is a shell script that can be run
|
||||
* to mark all the bad blocks.
|
||||
*
|
||||
* If the -t flag is given, only the total numbers of blocks is reported.
|
||||
*
|
||||
* Examples of usage:
|
||||
* readall /dev/hd1 # read /dev/hd1
|
||||
* readall -b /dev/hd2 # prepare bad block list on stdout
|
||||
* readall -t /dev/ram # report size of ram disk
|
||||
*/
|
||||
|
||||
#include <sys/types.h>
|
||||
#include <sys/ioc_disk.h>
|
||||
#include <minix/partition.h>
|
||||
#include <time.h>
|
||||
#include <fcntl.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#define CHUNK 25 /* max number of blocks read at once */
|
||||
#define BLOCK_SIZE 1024 /* size of a block */
|
||||
#define RESUME 200 /* # good reads before going back to CHUNK */
|
||||
#define DIVISOR 1000 /* how often to print statistics */
|
||||
#define STORE 4096 /* save this many bad blocks for summary */
|
||||
|
||||
int chunk = CHUNK; /* current number of blocks being read */
|
||||
long goodies; /* incremented on good reads */
|
||||
long errors; /* number of errors so far */
|
||||
int normal = 1; /* set unless -b flag is given */
|
||||
int total = 0; /* unset unless -t flag is given */
|
||||
char *name; /* name of special file being read */
|
||||
|
||||
char a[CHUNK * BLOCK_SIZE]; /* read buffer */
|
||||
long rotten[STORE]; /* list of bad blocks */
|
||||
|
||||
int main(int argc, char **argv);
|
||||
static void output(long blocks_read);
|
||||
|
||||
/* print pretty progress meter with remaining no. of blocks and ETA on
|
||||
* stderr
|
||||
*/
|
||||
void
|
||||
prettyprogress(long b, long nblocks, time_t starttime)
|
||||
{
|
||||
/* print progress indication */
|
||||
time_t spent, now;
|
||||
long bpsec;
|
||||
time(&now);
|
||||
spent = now - starttime;
|
||||
if(spent > 0 && (bpsec = b / spent) > 0) {
|
||||
int len, i;
|
||||
long secremain, minremain, hremain;
|
||||
secremain = (nblocks - b) / bpsec;
|
||||
minremain = (secremain / 60) % 60;
|
||||
hremain = secremain / 3600;
|
||||
len = fprintf(stderr, "Remain %ld blocks. ETA: %d:%02d:%02d [",
|
||||
nblocks - b,
|
||||
hremain, minremain, secremain % 60);
|
||||
#define WIDTH 77
|
||||
len = WIDTH - len;
|
||||
for(i = 0; i < (b * (len-1) / nblocks); i++)
|
||||
fprintf(stderr, "=");
|
||||
fprintf(stderr, "|");
|
||||
for(; i < len-2; i++)
|
||||
fprintf(stderr, "-");
|
||||
fprintf(stderr, "]\r");
|
||||
fflush(stderr);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
int main(argc, argv)
|
||||
int argc;
|
||||
char *argv[];
|
||||
{
|
||||
struct partition entry;
|
||||
int fd, s, i, badprinted;
|
||||
u64_t b = 0, nblocks;
|
||||
char *p;
|
||||
time_t starttime;
|
||||
|
||||
if (argc != 2 && argc != 3) {
|
||||
fprintf(stderr, "Usage: readall [-b | -t] file\n");
|
||||
exit(1);
|
||||
}
|
||||
i = 1;
|
||||
|
||||
p = argv[1];
|
||||
if (*p == '-' && *(p + 1) == 'b' && *(p + 2) == '\0') {
|
||||
normal = 0;
|
||||
i++;
|
||||
name = argv[i];
|
||||
}
|
||||
if (*p == '-' && *(p + 1) == 't' && *(p + 2) == '\0') {
|
||||
normal = 0;
|
||||
total = 1;
|
||||
i++;
|
||||
name = argv[i];
|
||||
}
|
||||
fd = open(argv[i], O_RDONLY);
|
||||
if (fd < 0) {
|
||||
perror(argv[i]);
|
||||
fprintf(stderr, "%s is not readable\n", argv[i]);
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/* Get size of file */
|
||||
if(ioctl(fd, DIOCGETP, &entry) < 0) {
|
||||
perror("ioctl DIOCGETP");
|
||||
return 1;
|
||||
}
|
||||
nblocks = entry.size / BLOCK_SIZE;
|
||||
|
||||
time(&starttime);
|
||||
/* Read the entire file. Try it in large chunks, but if an error
|
||||
* occurs, go to single reads for a while. */
|
||||
while (1) {
|
||||
if(lseek64(fd, (BLOCK_SIZE * b), SEEK_SET, NULL) < 0) {
|
||||
perror("lseek64");
|
||||
return 1;
|
||||
}
|
||||
s = read(fd, a, BLOCK_SIZE * chunk);
|
||||
if (s == BLOCK_SIZE * chunk) {
|
||||
/* Normal read, no errors. */
|
||||
b += chunk;
|
||||
goodies++;
|
||||
if (chunk == 1) {
|
||||
if (goodies >= RESUME && b % DIVISOR == 0)
|
||||
chunk = CHUNK;
|
||||
}
|
||||
if(b % DIVISOR == 0 && !normal) {
|
||||
prettyprogress(b, nblocks, starttime);
|
||||
}
|
||||
} else if (s < 0) {
|
||||
/* I/O error. */
|
||||
if (chunk != 1) {
|
||||
chunk = 1; /* regress to single block mode */
|
||||
continue;
|
||||
}
|
||||
if (errors == STORE) {
|
||||
fprintf(stderr,
|
||||
"\n%ld Bad blocks is too many. Exiting\n",
|
||||
errors);
|
||||
exit(1);
|
||||
}
|
||||
rotten[(int) errors] = b; /* log the error */
|
||||
b += chunk;
|
||||
errors++;
|
||||
} else {
|
||||
/* End of file. */
|
||||
b += s / BLOCK_SIZE;
|
||||
if (normal) {
|
||||
output(b);
|
||||
fprintf(stderr, "\n");
|
||||
} else fprintf(stderr, "\r%*s\n", -WIDTH, "Done scanning.");
|
||||
if (total) printf("%8lld\n", b);
|
||||
if ((errors == 0) || total) exit(0);
|
||||
badprinted = 0;
|
||||
if (normal) printf("Summary of bad blocks\n");
|
||||
|
||||
/* Print summary of bad blocks, possibly as shell script. */
|
||||
for (i = 0; i < errors; i++) {
|
||||
if (normal == 0 && badprinted == 0) {
|
||||
printf("badblocks %s ", name);
|
||||
badprinted = 1;
|
||||
}
|
||||
printf("%6ld ", rotten[i]);
|
||||
if ((i + 1) % 7 == 0) {
|
||||
printf("\n");
|
||||
badprinted = 0;
|
||||
}
|
||||
}
|
||||
printf("\n");
|
||||
exit(0);
|
||||
}
|
||||
if (normal && b % DIVISOR == 0) output(b);
|
||||
}
|
||||
}
|
||||
|
||||
static void output(blocks_read)
|
||||
long blocks_read;
|
||||
{
|
||||
fprintf(stderr, "%8ld blocks read, %5ld errors\r", blocks_read, errors);
|
||||
fflush(stderr);
|
||||
}
|
||||
|
|
@ -13,7 +13,7 @@ MAN= ash.1 at.1 banner.1 basename.1 \
|
|||
mesg.1 mixer.1 mkfs.1 \
|
||||
mkproto.1 mount.1 mt.1 nice.1 nm.1 nohup.1 od.1 \
|
||||
paste.1 ping.1 playwave.1 pr.1 prep.1 \
|
||||
profile.1 ps.1 pwd.1 rcp.1 readall.1 recwave.1 \
|
||||
profile.1 ps.1 pwd.1 rcp.1 recwave.1 \
|
||||
ref.1 remsync.1 rget.1 rlogin.1 rsh.1 rz.1 \
|
||||
shar.1 acksize.1 sleep.1 sort.1 spell.1 \
|
||||
split.1 stty.1 sum.1 svc.1 svrctl.1 \
|
||||
|
|
|
|||
|
|
@ -1,44 +0,0 @@
|
|||
.TH READALL 1
|
||||
.SH NAME
|
||||
readall \- read a device quickly to check for bad blocks
|
||||
.SH SYNOPSIS
|
||||
\fBreadall\fR [\fB\-bt\fR] \fIfile\fR
|
||||
.br
|
||||
.de FL
|
||||
.TP
|
||||
\\fB\\$1\\fR
|
||||
\\$2
|
||||
..
|
||||
.de EX
|
||||
.TP 20
|
||||
\\fB\\$1\\fR
|
||||
# \\$2
|
||||
..
|
||||
.SH OPTIONS
|
||||
.TP 5
|
||||
.B \-b
|
||||
# Produce shell script on \fIstdout\fR that calls \fIbadblocks\fR
|
||||
.TP 5
|
||||
.B \-t
|
||||
# Just print device size
|
||||
.SH EXAMPLES
|
||||
.TP 20
|
||||
.B readall /dev/hd0
|
||||
# Read all of \fI/dev/hd0\fR
|
||||
.TP 20
|
||||
.B readall -b /dev/hd1 >s
|
||||
# Generate shell script on \fIs\fR
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
\fIReadall\fR reads all of the named device in large chunks.
|
||||
It reports about blocks that it cannot read.
|
||||
Unlike \fIdiskcheck\fR, it does not attempt to write on
|
||||
the disk, making it safer to use when one is worried about a sick system.
|
||||
When the \fB\-b\fR flag is given, the output is a shell script that
|
||||
calls the \fIbadblocks\fR program to marked all the bad blocks.
|
||||
Whenever installing
|
||||
\s-1MINIX 3\s-1,
|
||||
it is wise to run \fIreadall\fR with the \fB\-b\fR flag first on all
|
||||
the hard disks.
|
||||
.SH "SEE ALSO"
|
||||
.BR badblocks (8).
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
MAN= add_route.8 backup.8 badblocks.8 boot.8 btrace.8 \
|
||||
MAN= add_route.8 backup.8 boot.8 btrace.8 \
|
||||
cdprobe.8 checkhier.8 chown.8 cleantmp.8 config.8 cron.8 \
|
||||
dhcpd.8 diskctl.8 elvprsv.8 fbdctl.8 fdisk.8 fingerd.8 \
|
||||
getty.8 halt.8 hgfs.8 httpd.8 ifconfig.8 inet.8 init.8 \
|
||||
|
|
|
|||
|
|
@ -1,38 +0,0 @@
|
|||
.TH BADBLOCKS 8
|
||||
.SH NAME
|
||||
badblocks \- put a list of bad blocks in a file
|
||||
.SH SYNOPSIS
|
||||
\fBbadblocks \fIblock_special\fR [\fIblock\fR] ...\fR
|
||||
.br
|
||||
.de FL
|
||||
.TP
|
||||
\\fB\\$1\\fR
|
||||
\\$2
|
||||
..
|
||||
.de EX
|
||||
.TP 20
|
||||
\\fB\\$1\\fR
|
||||
# \\$2
|
||||
..
|
||||
.SH EXAMPLES
|
||||
.TP 20
|
||||
.B badblocks /dev/hd1
|
||||
# Handle bad blocks on \fI/dev/hd1\fP
|
||||
.TP 20
|
||||
.B badblocks /dev/hd3 310 570 1680
|
||||
# Three bad blocks on \fI/dev/hd3\fP
|
||||
.SH DESCRIPTION
|
||||
.PP
|
||||
If a device contains bad sectors, it is important to not have them
|
||||
allocated to important files. This program makes it possible to collect
|
||||
up to 7 bad blocks into a dummy file, so they will not be allocated for a
|
||||
\&'real\&' file.
|
||||
When the program starts up, it asks for a list of bad blocks, unless
|
||||
they are provided as arguments.
|
||||
Then it creates a file whose name is of the
|
||||
form \fI.Bad_xxxxx\fR, where \fIxxxxx\fR is a pid.
|
||||
.SH "SEE ALSO"
|
||||
.BR readall (1).
|
||||
|
||||
.\"
|
||||
.\" $PchId: badblocks.8,v 1.2 1998/07/27 19:47:04 philip Exp $
|
||||
|
|
@ -310,15 +310,11 @@ Next make a file system for on-disk /home. Leave it empty for now.
|
|||
Next make a file system for on-disk /usr and copy the floppy /usr on to it.
|
||||
.PP
|
||||
.XB "mkfs\0/dev/c0d0p1s2"
|
||||
.XB "readall\0\-b\0/dev/c0d0p1s2 | sh"
|
||||
.XB "mount\0/dev/c0d0p1s2\0/mnt"
|
||||
.XB "cpdir\0\-v\0/usr\0/mnt"
|
||||
.PP
|
||||
This will create a file system on /dev/c0d0p1s2, mount it on /mnt, and copy the
|
||||
contents of the \s-2USR\s+2 floppy onto it. The call to
|
||||
.B readall
|
||||
marks bad blocks on the file system as unusable, you can omit this on a
|
||||
drive known to be spotless (\s-2IDE\s+2 or \s-2SCSI\s+2.)
|
||||
contents of the \s-2USR\s+2 floppy onto it.
|
||||
.PP
|
||||
You can now use the new /usr in place of the \s-2USR\s+2 floppy:
|
||||
.PP
|
||||
|
|
|
|||
Loading…
Reference in a new issue