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authorDave Reisner <dreisner@archlinux.org>2011-11-06 18:30:40 +0100
committerDave Reisner <dreisner@archlinux.org>2011-11-15 01:11:09 +0100
commit5ee994c10029786947dc495e7078bbb30ab4a130 (patch)
treebfeaef488b20021c0e5992a86e55d3b058cdf0dd /init_functions
parentfe5d6c51c4ace947060fe49914d8224c836a31e4 (diff)
downloadmkinitcpio-5ee994c10029786947dc495e7078bbb30ab4a130.tar.gz
mkinitcpio-5ee994c10029786947dc495e7078bbb30ab4a130.tar.xz
fsck: implement basic fsck support
This adds support for fsck'ing root at bootstrap if the fsck binary and necessary helpers are included. Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Diffstat (limited to 'init_functions')
-rw-r--r--init_functions69
1 files changed, 65 insertions, 4 deletions
diff --git a/init_functions b/init_functions
index eb8b918..5ec199e 100644
--- a/init_functions
+++ b/init_functions
@@ -71,6 +71,9 @@ parse_cmdline() {
fi
[ "$lhs" = "${lhs//[^0-9a-zA-Z]}" ] && [ "$lhs" = "${lhs#[0-9]}" ] && eval ${lhs}=\${rhs}
;;
+ forcefsck)
+ FORCEFSCK="-f"
+ ;;
*) lhs=${w//[-.]/_}
[ "$lhs" = "${lhs//[^0-9a-zA-Z]}" ] && [ "$lhs" = "${lhs#[0-9]}" ] && eval ${lhs}=y
;;
@@ -87,6 +90,66 @@ parse_cmdline() {
done
}
+fsck_device() {
+ [ -x /sbin/fsck ] || return 255
+
+ if [ ! -b "$1" ]; then
+ err "device '$1' not found. Skipping fsck."
+ return 255
+ fi
+
+ msg ":: performing fsck on '$1'"
+ FSTAB_FILE=/dev/null fsck -Ta -C"$FSCK_FD" "$1" -- $FORCEFSCK
+}
+
+fsck_root() {
+ fsck_device "$root"
+ fsckret=$?
+
+ fsck_ret() {
+ [ -z "$fsckret" ] && return 1
+ [ "$fsckret" -eq "$1" ] && return 0
+ [ "$(( $fsckret & $1 ))" -eq "$1" ]
+ }
+
+ if [ "$fsckret" -ne 255 ]; then
+ if fsck_ret 0 || fsck_ret 1; then
+ echo "$fsckret" > /run/initramfs/root-fsck
+ elif fsck_ret 4; then
+ err "Bailing out. Run 'fsck $root' manually"
+ printf '%s\n' \
+ "********** FILESYSTEM CHECK FAILED **********"
+ "* *"
+ "* Please run fsck manually. After leaving *"
+ "* this maintenance shell, the system will *"
+ " reboot automatically. *"
+ "* *"
+ "*********************************************"
+ launch_interactive_shell
+ echo ":: Automatic reboot in progress"
+ sleep 2
+ reboot -f
+ elif fsck_ret 2; then
+ printf '%s\n' \
+ "************** REBOOT REQUIRED **************" \
+ "* *" \
+ "* automatically restarting in 10 seconds *" \
+ "* *" \
+ "*********************************************"
+ sleep 10
+ reboot -f
+ elif fsck_ret 8; then
+ err "fsck failed on '$root'"
+ elif fsck_ret 16; then
+ err "Failed to invoke fsck: usage or syntax error"
+ elif fsck_ret 32; then
+ echo ":: fsck cancelled on user request"
+ elif fsck_ret 128; then
+ err "fatal error invoking fsck"
+ fi
+ fi
+}
+
resolve_device() {
local major minor dev device=$1
@@ -136,9 +199,7 @@ resolve_device() {
}
default_mount_handler() {
- local rootdev
-
- if ! rootdev=$(resolve_device "$root"); then
+ if [ ! -b "$root" ]; then
err "Unable to determine major/minor number of root device '$root'."
echo "You are being dropped to a recovery shell"
echo " Type 'exit' to try and continue booting"
@@ -146,7 +207,7 @@ default_mount_handler() {
msg "Trying to continue (this will most likely fail) ..."
fi
- if ! mount ${fstype:+-t $fstype} -o ${rwopt:-ro}${rootflags:+,$rootflags} "$rootdev" "$1"; then
+ if ! mount ${fstype:+-t $fstype} -o ${rwopt:-ro}${rootflags:+,$rootflags} "$root" "$1"; then
echo "You are now being dropped into an emergency shell."
launch_interactive_shell
msg "Trying to continue (this will most likely fail) ..."