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Fix dump_fs mount point detection and fallback mount 

Simplify the code and fix mount point detection. The code logic is now
much simpler: if $1 is not a mount point, call "mount --target $1" again
to try mount it. "mount --target" cmd itself can handle all the /etc/fstab
parsing job, so drop the buggy and complex bash code.

Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Pingfan Liu <piliu@redhat.com>
This commit is contained in:
Kairui Song 2021-01-05 00:35:58 +08:00
parent 7f1f8f229f
commit e8ef4db8ff
1 changed files with 7 additions and 18 deletions
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25
kdump-lib-initramfs.sh
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@ -117,26 +117,15 @@ dump_fs()
{
local _exitcode
local _mp=$1
local _dev=$(get_mount_info SOURCE target $_mp -f)
local _op=$(get_mount_info OPTIONS target $_mp -f)
ddebug "dump_fs _mp=$_mp"
ddebug "_mp=$_mp _dev=$_dev _op=$_op"
# If dump path have a corresponding device entry but not mounted, mount it.
if [ -n "$_dev" ] && [ "$_dev" != "rootfs" ]; then
if ! is_mounted "$_mp"; then
dinfo "dump target $_dev is not mounted, trying to mount..."
mkdir -p $_mp
mount -o $_op $_dev $_mp
if [ $? -ne 0 ]; then
derror "mounting failed (mount point: $_mp, option: $_op)"
return 1
fi
if ! is_mounted "$_mp"; then
dinfo "dump path \"$_mp\" is not mounted, trying to mount..."
mount --target $_mp
if [ $? -ne 0 ]; then
derror "failed to dump to \"$_mp\", it's not a mount point!"
return 1
fi
else
derror "failed to dump to \"$_mp\", it's not a mount point!"
return 1
fi
# Remove -F in makedumpfile case. We don't want a flat format dump here.