From: Kenneth D'souza <kdsouza(a)redhat.com>
Currently the script does not check if the dump target is read-only and would
always mount to read-write mode. This caused an issue with nfs mount as
the fstab options would be reconsidered while remounting to read-write mode.
The remount would fail with the below error as all options cannot be changed
runtime.
mount.nfs: an incorrect mount option was specified
Which in result would not save the vmcore on the dump target.
This patch addresses this issue by checking the dump target status for read-only.
If yes, remount to read-write mode without reconsidering the fstab options.
Signed-off-by: Kenneth D'souza <kdsouza(a)redhat.com>
---
kdump-lib-initramfs.sh | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/kdump-lib-initramfs.sh b/kdump-lib-initramfs.sh
index 2c18c87..8adcba2 100755
--- a/kdump-lib-initramfs.sh
+++ b/kdump-lib-initramfs.sh
@@ -100,7 +100,13 @@ dump_fs()
echo "kdump: saving to $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/"
- mount -o remount,rw $_mp || return 1
+ # Only remount to read-write mode if the dump target is mounted read-only.
+ check_status=$(grep "\srw[\s,]" /proc/mounts | grep -i $_mp)
+ if [ -z "$check_status" ]; then
+ echo "kdump: Mounting Dump target $_dev in rw mode."
+ mount -o remount,rw $_dev $_mp || return 1
+ fi
+
mkdir -p $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR || return 1
save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/"
--
2.14.3
