sonic-buildimage/files/initramfs-tools/fsck-rootfs

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#!/bin/sh
case $1 in
prereqs)
exit 0
;;
esac
# Extract kernel parameters
root_val=""
set -- $(cat /proc/cmdline)
for x in "$@"; do
case "$x" in
root=*)
root_val="${x#root=}"
;;
esac
done
# Check the filesystem we are using
if [ ! -z $root_val ]; then
fstype=$(blkid -o value -s TYPE $root_val)
case "$fstype" in
ext4)
cmd="fsck.ext4 -v -p"
;;
ext3)
cmd="fsck.ext3 -v -p"
;;
esac
if [ ! -z "$cmd" ]; then
$cmd $root_val 2>&1 | gzip -c > /tmp/fsck.log.gz
fi
fi