a5f47c23d5
* Remove support for the Poor Man fstab * Remove checks for the missing ARCH kernel variable * Remove .ashrc which is anyway only read once per login * Cleanup PATH variable Change-Id: Ic32e5749fba502dfa38d4d538860e717580bad60
115 lines
2.3 KiB
Bash
Executable file
115 lines
2.3 KiB
Bash
Executable file
#!/bin/sh
|
|
#
|
|
# mkboot 2.0 - make root device bootable, etc.
|
|
# Author: Kees J. Bot
|
|
|
|
usage() {
|
|
echo "Usage: $0 [bootable | hdboot] [DESTDIR]" >&2
|
|
exit 1
|
|
}
|
|
|
|
rotate_oldest() {
|
|
base_dir="$1"
|
|
set -- `ls -t "$base_dir"`
|
|
|
|
case $# in
|
|
0|1|2|3)
|
|
# Not much there, do not remove a thing.
|
|
;;
|
|
*)
|
|
# Remove the third-newest image in /boot/$hdboot_t, but
|
|
# only if there's an older one (which is kept).
|
|
echo "rm $root:$base_dir/$3"
|
|
rm -rf "$base_dir/$3"
|
|
esac
|
|
}
|
|
|
|
|
|
mdec=/usr/mdec # bootstraps
|
|
# If no DESTDIR specified, then act on / or on the current chroot
|
|
DESTDIR=
|
|
# Check arguments.
|
|
case "$#:$1" in
|
|
1:bootable | 1:hdboot )
|
|
# LSC Broken, if $# == 1, then $2,$3 are not set...
|
|
action=$1
|
|
;;
|
|
2:bootable | 2:hdboot )
|
|
action=$1 DESTDIR=$2
|
|
;;
|
|
*) usage
|
|
esac
|
|
|
|
# Get the device table.
|
|
FSTAB=/etc/fstab
|
|
touch $FSTAB
|
|
root="`awk <$FSTAB '{ if($2=="/") { print $1 } }'`"
|
|
|
|
# The real root device may be the RAM disk.
|
|
realroot=`printroot -r`
|
|
|
|
# If it's an initial fstab, pretend root is real root
|
|
if [ "$root" = "/dev/ROOT" -o -z "$root" ]
|
|
then root=$realroot
|
|
fi
|
|
|
|
case $action in
|
|
bootable | hdboot)
|
|
# We need the root device.
|
|
|
|
if [ $realroot = $root ]
|
|
then
|
|
rootdir=
|
|
else
|
|
umount $root 2>/dev/null
|
|
mount $root /mnt || exit
|
|
rootdir=/mnt
|
|
fi
|
|
esac
|
|
|
|
case $action in
|
|
hdboot)
|
|
version=`sh ../sys/conf/osrelease.sh`
|
|
|
|
# Retrieve the git revision; this only succeeds
|
|
# if git is available, it's a git checkout, *and*
|
|
# there are no uncommitted changes.
|
|
if git diff --quiet 2>/dev/null
|
|
then gitrev="-`git describe --always`"
|
|
fi
|
|
|
|
revision=`cat revision 2>/dev/null`
|
|
|
|
oldrev=$revision
|
|
|
|
if [ -z "$revision" ]
|
|
then
|
|
revision=0
|
|
rrevision=""
|
|
gitrev=""
|
|
else
|
|
revision=`expr $revision + 1`
|
|
rrevision=r$revision
|
|
fi
|
|
|
|
target="${version}${rrevision}${gitrev}"
|
|
|
|
rotate_oldest "$DESTDIR/boot/minix"
|
|
|
|
# rotate system processes. We assume latest ones are in
|
|
# /boot/modules/.temp and we maintain /boot/modules/ by ourselves.
|
|
[ -d $DESTDIR/boot/minix/.temp ] || exit 1
|
|
rm -rf $DESTDIR/boot/minix/"$target"/
|
|
mv $DESTDIR/boot/minix/.temp $DESTDIR/boot/minix/"$target"
|
|
rm -f $DESTDIR/boot/minix_latest
|
|
ln -s minix/"$target" $DESTDIR/boot/minix_latest
|
|
|
|
# Save the revision number.
|
|
test "$revision" != "$oldrev" && echo $revision >revision
|
|
|
|
test $realroot != $root && umount $root
|
|
echo "Done."
|
|
;;
|
|
esac
|
|
sync
|
|
exit 0
|