Minor improvements for autopart and setupcd

commands/ibm/autopart.c

@@ -54,7 +54,7 @@ Num Sort   Type
 #define DEV_FD0		0x200		/* Device number of /dev/fd0 */
 #define DEV_C0D0	0x300		/* Device number of /dev/c0d0 */
 
-#define MIN_REGION_MB	80
+#define MIN_REGION_MB	180
 #define MIN_REGION_SECTORS (1024*1024*MIN_REGION_MB/SECTOR_SIZE)
 
 #define MAX_REGION_MB	4095
@@ -374,7 +374,7 @@ struct part_entry table[1 + NR_PARTITIONS];
 int existing[1 + NR_PARTITIONS];
 unsigned long offset= 0, extbase= 0, extsize;
 int submerged= 0;
-char sort_index[1 + NR_PARTITIONS];
+char sort_index[1 + NR_PARTITIONS], sort_order[1 + NR_PARTITIONS];
 unsigned cylinders= 1, heads= 1, sectors= 1, secpcyl= 1;
 unsigned alt_cyls= 1, alt_heads= 1, alt_secs= 1;
 int precise= 0;
@@ -389,21 +389,20 @@ void sort(void)
 /* Let the sort_index array show the order partitions are sorted in. */
 {
 	int i, j;
-	int idx[1 + NR_PARTITIONS];
 
-	for (i= 1; i <= NR_PARTITIONS; i++) idx[i]= i;
+	for (i= 1; i <= NR_PARTITIONS; i++) sort_order[i]= i;
 
 	for (i= 1; i <= NR_PARTITIONS; i++) {
 		for (j= 1; j <= NR_PARTITIONS-1; j++) {
-			int sj= idx[j], sj1= idx[j+1];
+			int sj= sort_order[j], sj1= sort_order[j+1];
 
 			if (sortbase(&table[sj]) > sortbase(&table[sj1])) {
-				idx[j]= sj1;
+				sort_order[j]= sj1;
-				idx[j+1]= sj;
+				sort_order[j+1]= sj;
 			}
 		}
 	}
-	for (i= 1; i <= NR_PARTITIONS; i++) sort_index[idx[i]]= i;
+	for (i= 1; i <= NR_PARTITIONS; i++) sort_index[sort_order[i]]= i;
 }
 
 void dos2chs(unsigned char *dos, unsigned *chs)
@@ -1679,17 +1678,6 @@ ssize_t boot_readwrite(int rw)
 	return r;
 }
 
-int bigenough(region_t *reg)
-{
-	int sectors;
-	if(reg->used_part)
-		sectors = reg->used_part->size;
-	else
-		sectors = reg->free_sec_last - reg->free_sec_start + 1;
-
-	return sectors >= MIN_REGION_SECTORS;
-}
-
 int cylinderalign(region_t *reg)
 {
 	if(reg->used_part) {
@@ -1701,7 +1689,7 @@ int cylinderalign(region_t *reg)
 			reg->used_part->size -= extra;
 		}
 		if((reg->used_part->size+1) % secpcyl) {
-			reg->used_part->size -= secpcyl - (reg->used_part->size % secpcyl);
+			reg->used_part->size -= secpcyl - ((reg->used_part->size + 1) % secpcyl);
 		}
 		return reg->used_part->size > 0;
 	}
@@ -1710,9 +1698,9 @@ int cylinderalign(region_t *reg)
 		/* Start is unaligned. Round up. */
 		reg->free_sec_start += secpcyl - (reg->free_sec_start % secpcyl);
 	}
-	if(reg->free_sec_last % secpcyl) {
+	if((reg->free_sec_last+1) % secpcyl) {
 		/* End is unaligned. Round down. */
-		reg->free_sec_last -= reg->free_sec_last % secpcyl;
+		reg->free_sec_last -= (reg->free_sec_last+1) % secpcyl;
 	}
 	
 	/* Return nonzero if anything remains of the region after rounding. */
@@ -1744,7 +1732,7 @@ void m_read(int ev, object_t *op)
 	}
 
 	if(probing) {
-		v = HZ/2;
+		v = 2*HZ;
 		ioctl(device, DIOCTIMEOUT, &v);
 	}
 
@@ -1822,7 +1810,7 @@ void m_read(int ev, object_t *op)
 	/* Create region data used in autopart mode. */
 	free_regions = used_regions = nr_regions = nr_partitions = 0;
 	for(si = 1; si <= NR_PARTITIONS; si++) {
-		i = sort_index[si];
+		i = sort_order[si];
 		if(i < 1 || i > NR_PARTITIONS) {
 			printf("Sorry, something unexpected has happened (%d out of range).\n", i);
 			exit(1);
@@ -1835,16 +1823,15 @@ void m_read(int ev, object_t *op)
 			regions[nr_regions].free_sec_start = free_sec;
 			regions[nr_regions].free_sec_last = table[i].lowsec-1;
 			regions[nr_regions].used_part = NULL;
-			if(cylinderalign(&regions[nr_regions]) &&
+			if(cylinderalign(&regions[nr_regions])) {
-			   bigenough(&regions[nr_regions])) {
 				nr_regions++;
 				free_regions++;
 			}
 		}
 
 		if(autopartmode && si > 1) {
-			if(table[i].lowsec < table[sort_index[si-1]].lowsec ||
+			if(table[i].lowsec < table[sort_order[si-1]].lowsec ||
-			   table[i].lowsec < table[sort_index[si-1]].lowsec + table[sort_index[si-1]].size) {
+			   table[i].lowsec < table[sort_order[si-1]].lowsec + table[sort_order[si-1]].size) {
 				printf("Sanity check failed - partitions overlap.\n"
 					"Please use expert mode to correct it.\n");
 				exit(1);
@@ -1855,19 +1842,16 @@ void m_read(int ev, object_t *op)
 		free_sec = table[i].lowsec+table[i].size;
 		nr_partitions++;
 
-		if(bigenough(&regions[nr_regions])) {
 		nr_regions++;
 		used_regions++;
 	}
-	}
 
 	/* Special case: space after partitions. */
 	if(free_sec < table[0].size-1) {
 		regions[nr_regions].free_sec_start = free_sec;
 		regions[nr_regions].free_sec_last = table[0].lowsec + table[0].size-1;
 		regions[nr_regions].used_part = NULL;
-		if(cylinderalign(&regions[nr_regions]) &&
+		if(cylinderalign(&regions[nr_regions])) {
-		   bigenough(&regions[nr_regions])) {
 			nr_regions++;
 			free_regions++;
 		}
@@ -1895,9 +1879,8 @@ void m_write(int ev, object_t *op)
 	if (bootblock[510] != 0x55 || bootblock[511] != 0xAA) {
 		/* Invalid boot block, warn user. */
 		stat_start(1);
-		printf("Warning: About to write a new table on %s",
+		if(!autopartmode) printf("Warning: About to write a new table on %s",
 							curdev->subname);
-		if(autopartmode) printf("\n");
 		stat_end(5);
 	}
 	if (extbase != 0) {
@@ -2196,8 +2179,11 @@ void mainloop(void)
 char *
 prettysizeprint(int kb)
 {
-	static char str[20];
+	int toosmall = 0;
+	static char str[200];
 	char unit = 'k';
+	if(MIN_REGION_SECTORS > kb*2)
+		toosmall = 1;
 	if(kb >= 5*1024) {
 		kb /= 1024;
 		unit = 'M';
@@ -2206,7 +2192,8 @@ prettysizeprint(int kb)
 			unit = 'G';
 		}
 	}
-	sprintf(str, "%d%cB", kb, unit);
+	sprintf(str, "%d%cB%s", kb, unit,
+		toosmall ? " - too small for MINIX" : "");
 	return str;
 }
 
@@ -2237,10 +2224,8 @@ select_region(void)
 
 	do {
 		reg = regions;
-		printf("\nI've found the following region%s on this disk (%s).\n"
+		printf("\nI've found the following region%s on this disk (%s).\n\n",
-		"(I'm only showing ones of at least %dMB.)\n\n",
+			SORNOT(nr_regions), prettysizeprint(table[0].size/2));
-			SORNOT(nr_regions), prettysizeprint(table[0].size/2), 
-				MIN_REGION_MB);
 		for(r = 0; r < nr_regions; r++, reg++) {
 			unsigned long units;
 			if(reg->used_part) {
@@ -2385,7 +2370,7 @@ select_disk(void)
 }
 
 int
-scribble_region(region_t *reg)
+scribble_region(region_t *reg, struct part_entry **pe)
 {
 	int ex, trunc = 0, changed = 0, i;
 	struct part_entry *newpart;
@@ -2405,7 +2390,7 @@ scribble_region(region_t *reg)
 		}
 	}
 	if(trunc) {
-		printf("\nShrunk region to %dMB.\n", MAX_REGION_MB);
+		printf("\nWill only use %dMB.\n", MAX_REGION_MB);
 	}
 	if(!reg->used_part) {
 		for(i = 1; i <= NR_PARTITIONS; i++)
@@ -2422,15 +2407,17 @@ scribble_region(region_t *reg)
 		changed = 1;
 	} else  newpart = reg->used_part;
 	newpart->sysind = MINIX_PART;
+	*pe = newpart;
 	changed = 1;
 
 	return changed;
 }
 
 int
-do_autopart(void)
+do_autopart(int resultfd)
 {
 	region_t *r;
+	struct part_entry *pe;
 
 	nordonly = 1; 
 	probing = 1;
@@ -2456,10 +2443,35 @@ do_autopart(void)
 	} while(!r);
 
 	/* Write things. */
-	if(scribble_region(r)) {
+	if(scribble_region(r, &pe)) {
+		int i, found = -1;
+		char partbuf[100];
 		dirty = 1;
 		m_write('w', NULL);
-		return !dirty;
+		if(dirty) return 1;
+		/* Retrieve partition number in sorted order that we
+		 * have scribbled in.
+		 */
+		sort();
+		for(i = 1; i <= NR_PARTITIONS; i++) {
+			if(table[sort_order[i]].lowsec == pe->lowsec) {
+				if(found > 0) {
+					fprintf(stderr, "Internal error (1).\n");
+					return 1;
+				}
+				found = i;
+			}
+		}
+		if(found < 1) {
+			fprintf(stderr, "Internal error (2).\n");
+			return 1;
+		}
+		sprintf(partbuf, "%sp%d\n", curdev->name, found-1);
+		if(resultfd >= 0 && write(resultfd, partbuf, strlen(partbuf)) < strlen(partbuf)) {
+			fprintf(stderr, "Couldn't write result.\n");
+			return 1;
+		}
+		return 0;
 	}
 
 	return 1;
@@ -2472,6 +2484,7 @@ int main(int argc, char **argv)
 	struct part_entry *pe;
 	char *name;
 	int autopart = 0;
+	int resultfd = -1;
 
 	/* Autopilot mode if invoked as autopart. */
 	if(!(name = strrchr(argv[0], '/'))) name = argv[0];
@@ -2529,6 +2542,25 @@ int main(int argc, char **argv)
 		op= newobject(O_SIZE,   OF_MOD, r, 69,  9); op->entry= pe;
 		op= newobject(O_KB,     OF_MOD, r, 79,  9); op->entry= pe;
 	}
+     } else {
+     	int c;
+     	/* autopart uses getopt() */
+     	while((c = getopt(argc, argv, "f:")) != EOF) {
+     		switch(c) {
+     			case 'f':
+     				unlink(optarg);
+     				if((resultfd=open(optarg, O_CREAT | O_WRONLY | O_TRUNC)) < 0) {
+     					perror(optarg);
+     					return 1;
+     				}
+     				break;
+     			default:
+     				fprintf(stderr, "Unknown option\n");
+     				return 1;
+     		}
+     	}
+     	argc--;
+     	argv++;
      }
 
 	for (i= 1; i < argc; i++) newdevice(argv[i], 0, 0);
@@ -2541,11 +2573,14 @@ int main(int argc, char **argv)
 	}
 
 	if(autopart) {
+		int r;
 		if (firstdev == nil) {
 			fprintf(stderr, "autopart couldn't find any devices.\n");
 			return 1;
 		}
-		return do_autopart();
+		r = do_autopart(resultfd);
+		if(resultfd >= 0) { close(resultfd); }
+		return r;
 	}
 
 	if (firstdev != nil) {

commands/scripts/setupcd.sh

@@ -26,70 +26,12 @@ EOF
 while getopts '' opt; do usage; done
 shift `expr $OPTIND - 1`
 
-# Installing a floppy set?
+if [ "$USER" != root ]
-case $# in
+then	echo "Please run setupcd as root."
-0)  # No, we're installing a skeleton system on the hard disk.
+	exit 1
-    ;;
+fi
-1)
-    cd "$1" || exit
-
-    # Annoying message still there?
-    grep "'setup /usr'" /etc/issue >/dev/null 2>&1 && rm -f /etc/issue
-
-    if [ -t 0 ]
-    then
-	size=bad
-	while [ "$size" = bad ]
-	do
-	    echo -n "\
-What is the size of the images on the diskettes? [all] "; read size
-
-	    case $size in
-	    ''|360|720|1200|1440)
-		;;
-	    *)	echo "Sorry, I don't believe \"$size\", try again." >&2
-		size=bad
-	    esac
-	done
-
-	drive=
-	while [ -z "$drive" ]
-	do
-	    echo -n "What floppy drive to use? [0] "; read drive
-
-	    case $drive in
-	    '')	drive=0
-		;;
-	    [01])
-		;;
-	    *)	echo "It must be 0 or 1, not \"$drive\"."
-		drive=
-	    esac
-	done
-
-	vol -r $size /dev/fd$drive | uncompress | tar xvfp -
-    else
-	# Standard input is where we can get our files from.
-	uncompress | tar xvfp -
-    fi
-
-    echo Done.
-    exit
-    ;;
-*)
-    usage
-esac
 
 # Installing Minix on the hard disk.
-# Must be in / or we can't mount or umount.
-if [ ! -f /CD ]
-then
-	case "`pwd`" in
-	/?*)
-	    echo "Please type 'cd /' first, you are locking up `pwd`" >&2	
-	    exit 1
-	esac
-fi
 
 case "$0" in
 /tmp/*)
@@ -116,26 +58,13 @@ case $thisroot:$fdusr in
 /dev/fd*:/dev/fd*)	fdroot=$thisroot	# ROOT is mounted directly
 			;;
 *)			fdroot=$thisroot	# ?
-    if [ -f /CD ]
-    then
-    	:
-    else
-	    echo -n "\
-It looks like Minix has been installed on disk already.  Are you sure you
-know what you are doing? [n] "
-	    read yn
-	    case "$yn" in
-	    [yY]*|sure)	;;
-	    *)	exit
-	    esac
-     fi
 esac
 
 echo -n "\
 This is the Minix installation script.
 
 Note 1: If the screen blanks suddenly then hit CTRL+F3 to select \"software
-	scrolling\".
+scrolling\".
 
 Note 2: If things go wrong then hit DEL and start over.
 
@@ -157,6 +86,25 @@ echo -n "
 Keyboard type? [us-std] "; read keymap
 test -n "$keymap" && loadkeys "/usr/lib/keymaps/$keymap.map"
 
+echo -n "Welcome to Minix partitioning. Do you want to
+follow the (A)utomatic or the e(X)pert mode? Expert mode drops
+you into part to let you edit your partition table to taste.
+Automatic mode is much easier, but can't handle all cases. In
+cases it can't handle, it will tell you to use expert mode.
+Please choose, A for Automatic, or X for Expert: "
+
+read ch
+case "$ch" in
+[Aa]*)	auto="1" ;;
+[Xx]*)	auto="" ;;
+*)	echo "Unrecognized response."; exit 1;
+esac
+
+primary=
+
+if [ -z "$auto" ]
+then
+	# Expert mode
 echo -n "
 Minix needs one primary partition of at about 210 MB for a full install
 with sources.  (The full install also fits in about 180 MB, but it
@@ -176,23 +124,49 @@ touch an existing partition unless you know precisely what you are doing!
 Please note the name of the partition (e.g. c0d0p1, c0d1p3, c1d1p0) you
 make.  (See the devices section in usage(8) on Minix device names.)
 :"
-read ret
+	read ret
 
-primary=
+	while [ -z "$primary" ]
-while [ -z "$primary" ]
+	do
-do
 	    part || exit
 
 	    echo -n "
 Please finish the name of the primary partition you have created:
 (Just type RETURN if you want to rerun \"part\")                   /dev/"
 	    read primary
-done
+	done
+else
+	# Automatic mode
+	while [ -z "$primary" ]
+	do
+		PF="/tmp/pf"
+		echo -n "Press return to enter the autopart tool, or DEL to abort.
+:"
+		read ret
+		if autopart -f$PF
+		then	if [ -s "$PF" ]
+			then
+				bd="`cat $PF`"
+				if [ -b "$bd" ]
+				then	primary="$bd"
+				else	echo "Funny device $bd from autopart."
+				fi
+			else
+				echo "Didn't find output from autopart."
+			fi 
+		else	echo "Autopart tool failed. Trying again."
+		fi
+	done
+
+fi
 
 root=${primary}s0
 swap=${primary}s1
 usr=${primary}s2
 
+echo "$root $usr"
+exit 1
+
 hex2int()
 {
     # Translate hexadecimal to integer.
@@ -345,18 +319,9 @@ Copying $fdroot to /dev/$root
 
 mkfs /dev/$root || exit
 mount /dev/$root /mnt || exit
-if [ -d /boot ]
+# Running from the installation CD.
-then
+cpdir -vx / /mnt || exit
-    # Running from the floppy itself (or installation CD).
+chmod 555 /mnt/usr
-    cpdir -vx / /mnt || exit
-    chmod 555 /mnt/usr
-else
-    # Running from the RAM disk, root image is on a floppy.
-    mount $fdroot /root || exit
-    cpdir -v /root /mnt || exit
-    umount $fdroot || exit
-    cpdir -f /dev /mnt/dev		# Copy any extra MAKEDEV'd devices
-fi
 
 # CD remnants that aren't for the installed system
 rm /mnt/etc/issue /mnt/CD 2>/dev/null