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* Remove /etc/mtab on boot.

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* Start an emergency shell if we can't remount / read-writable.

svn path=/nixu/trunk/; revision=7097
This commit is contained in:
Eelco Dolstra 2006-11-23 17:46:55 +00:00
parent e6ebe2e2aa
commit 5e8d54eef7
1 changed files with 6 additions and 4 deletions
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10
test/boot-stage-2-init.sh
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@ -21,11 +21,12 @@ done
# Mount special file systems, initialise required directories. # Mount special file systems, initialise required directories.
rm -f /etc/mtab
if test -z "@readOnlyRoot@"; then if test -z "@readOnlyRoot@"; then
#rootDev=$(grep "/dev/.* / " /proc/mounts | sed 's/^\([^ ]*\) .*/\1/') #rootDev=$(grep "/dev/.* / " /proc/mounts | sed 's/^\([^ ]*\) .*/\1/')
mount -o remount,rw /dontcare / # !!! check for failure if mount -t dontcare -o remount,rw /dontcare /; then
echo "Couldn't remount / read-writable, starting emergency shell!"
exec @shell@
fi
fi fi
needWritableDir() { needWritableDir() {
@ -40,7 +41,8 @@ needWritableDir /etc 0755 -n # to shut up mount
test -e /etc/fstab || touch /etc/fstab # idem test -e /etc/fstab || touch /etc/fstab # idem
mount -t proc none /proc mount -n -t proc none /proc
cp /proc/mounts /etc/mtab
mount -t sysfs none /sys mount -t sysfs none /sys
mount -t tmpfs -o "mode=0755" none /dev mount -t tmpfs -o "mode=0755" none /dev
needWritableDir /tmp 01777 needWritableDir /tmp 01777