There is important information about booting non-ack images in
docs/UPDATING. ack/aout-format images can't be built any more, and
booting clang/ELF-format ones is a little different. Updating to the
new boot monitor is recommended.
Changes in this commit:
. drop boot monitor -> allowing dropping ack support
. facility to copy ELF boot files to /boot so that old boot monitor
can still boot fairly easily, see UPDATING
. no more ack-format libraries -> single-case libraries
. some cleanup of OBJECT_FMT, COMPILER_TYPE, etc cases
. drop several ack toolchain commands, but not all support
commands (e.g. aal is gone but acksize is not yet).
. a few libc files moved to netbsd libc dir
. new /bin/date as minix date used code in libc/
. test compile fix
. harmonize includes
. /usr/lib is no longer special: without ack, /usr/lib plays no
kind of special bootstrapping role any more and bootstrapping
is done exclusively through packages, so releases depend even
less on the state of the machine making them now.
. rename nbsd_lib* to lib*
. reduce mtree
Instead of using rootdev= or ramimagedev= in the boot monitor
which are changed to numbers and cannot be used with other
loaders, rootdevname= or ramimagename= are (MINIX-style)
device names always stored as strings.
Patch by Antoine Leca.
. pre-cleanflag ("old") mkfs generates without CLEAN flag,
causing boot not working because imgrd disappears after 1st
close
. fixed sanity check for this situation
. disable imgrd disappearing in memory driver so
readonly mount succeeds in case it happens anyway
. also implement now-possible fsck -p option
. allows unconditional fsck -p invocation at startup,
only checking each filesystem if not marked clean
. mounting unclean is allowed but is forced readonly
. updating the superblock while mounted is now not
allowed by mfs - must be done (e.g. by fsck.mfs)
on an unmounted fs
. clean flag is unset by mfs on mounting, and set by
mfs on clean unmounting (if clean flag was set at
mount time)
Signed-off-by: Ben Gras <ben@minix3.org>
. always compile acpi, with clang, so never have
build/clean inconsistencies; can be enabled (i.e. run
at boot time) by setting acpi variable in the boot monitor
. always strip binaries with the right strip cmd, so never
have ack/elf strip inconsistencies
Improves cache locality by grouping together dependency generation
with building for each program instead of doing a whole-tree dep
generation phase followed by a whole-tree build phase
3 sets of libraries are built now:
. ack: all libraries that ack can compile (/usr/lib/i386/)
. clang+elf: all libraries with minix headers (/usr/lib/)
. clang+elf: all libraries with netbsd headers (/usr/netbsd/)
Once everything can be compiled with netbsd libraries and headers, the
/usr/netbsd hierarchy will be obsolete and its libraries compiled with
netbsd headers will be installed in /usr/lib, and its headers
in /usr/include. (i.e. minix libc and current minix headers set
will be gone.)
To use the NetBSD libc system (libraries + headers) before
it is the default libc, see:
http://wiki.minix3.org/en/DevelopersGuide/UsingNetBSDCode
This wiki page also documents the maintenance of the patch
files of minix-specific changes to imported NetBSD code.
Changes in this commit:
. libsys: Add NBSD compilation and create a safe NBSD-based libc.
. Port rest of libraries (except libddekit) to new header system.
. Enable compilation of libddekit with new headers.
. Enable kernel compilation with new headers.
. Enable drivers compilation with new headers.
. Port legacy commands to new headers and libc.
. Port servers to new headers.
. Add <sys/sigcontext.h> in compat library.
. Remove dependency file in tree.
. Enable compilation of common/lib/libc/atomic in libsys
. Do not generate RCSID strings in libc.
. Temporarily disable zoneinfo as they are incompatible with NetBSD format
. obj-nbsd for .gitignore
. Procfs: use only integer arithmetic. (Antoine Leca)
. Increase ramdisk size to create NBSD-based images.
. Remove INCSYMLINKS handling hack.
. Add nbsd_include/sys/exec_elf.h
. Enable ELF compilation with NBSD libc.
. Add 'make nbsdsrc' in tools to download reference NetBSD sources.
. Automate minix-port.patch creation.
. Avoid using fstavfs() as it is *extremely* slow and unneeded.
. Set err() as PRIVATE to avoid name clash with libc.
. [NBSD] servers/vm: remove compilation warnings.
. u32 is not a long in NBSD headers.
. UPDATING info on netbsd hierarchy
. commands fixes for netbsd libc
patch to allow MINIX to boot from ext2.
To create a setup with MINIX on ext2, follow these steps:
- Assumptions:
- there exists a primary partition c0dApB with a MINIX installation
with GRUB support (/boot/image_latest exists on /dev/c0dApB)
- there exists a free primary partition c0dCpD
- Create an ext2 filesystem on c0dApB (from Linux, until Tthom
has ported mke2fs)
- Follow these steps (from a MINIX CD with ext2 support, another MINIX
installation (not c0dApB) or Linux >= 2.6.35):
mkdir /mnt/mfs /mnt/ext2
mount /dev/c0dApBs0 /mnt/mfs
mount /dev/c0dApBs1 /mnt/mfs/home
mount /dev/c0dApBs2 /mnt/mfs/usr
mount /dev/c0dCpD /mnt/ext2
synctree -f /mnt/mfs /mnt/ext2
echo root=/dev/c0dCpD > /mnt/ext2/etc/fstab
(note: no subpartitions used because that would confuse an unmodified
bootloader)
- Add the new MINIX installation to GRUB according to steps 7&8 in
http://wiki.minix3.org/en/SummerOfCode2010/MultiBoot/HowTo
This eliminates a race condition between the disk driver calling
sys_statectl(SYS_STATE_CLEAR_IPC_REFS) as part of driver_announce(),
and the root MFS calling sendrec(DEV_OPEN) on the disk driver.
