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Remove duplicate slash in save path

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Now kdump cannt parse the path correctly, if the path contains
duplicated "/". Following is an example to explain it detail. (the
directory /mnt is a mount point which is mounted a block device)

path //mnt/var/crash

Then the warning will raise.

Force rebuild /boot/initramfs-3.19.1kdump.img
Rebuilding /boot/initramfs-3.19.1kdump.img
df: ‘/mnt///mnt/var/crash’: No such file or directory
/sbin/mkdumprd: line 239: [: -lt: unary operator expected
kexec: loaded kdump kernel
Starting kdump: [OK]

For above case, kdump fails to check the fs size, due to the incorrect
path.

In kdump code flow, we will cut out the mount point(/mnt) from the
path(//mnt/var/crash). But the mount point cannt match the path, because
of the duplicated "/".

To fix it, we will strip the duplicated "/" firstly.

Signed-off-by: Minfei Huang <mhuang@redhat.com>
Acked-by: Dave Young <dyoung@redhat.com>
Acked-by: Baoquan He <bhe@redhat.com>
This commit is contained in:
Minfei Huang 2015-04-10 16:18:57 +08:00 committed by Baoquan He
parent 2c443617bc
commit fedeba5e4b
2 changed files with 9 additions and 5 deletions
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11
dracut-module-setup.sh
View File

@ -311,15 +311,17 @@ kdump_install_net() {
default_dump_target_install_conf()
{
local _target _fstype
local _s _t
local _mntpoint
local _path _save_path
local _save_path
is_user_configured_dump_target && return
_save_path=$(get_option_value "path")
[ -z "$_save_path" ] && _save_path=$DEFAULT_PATH
# strip the duplicated "/"
_save_path=$(echo $_save_path | tr -s /)
_mntpoint=$(get_mntpoint_from_path $_save_path)
_target=$(get_target_from_path $_save_path)
if [ "$_mntpoint" != "/" ]; then
@ -334,13 +336,12 @@ default_dump_target_install_conf()
echo "$_fstype $_target" >> ${initdir}/tmp/$$-kdump.conf
_path=${_save_path##"$_mntpoint"}
_save_path=${_save_path##"$_mntpoint"}
#erase the old path line, then insert the parsed path
sed -i "/^path/d" ${initdir}/tmp/$$-kdump.conf
echo "path $_path" >> ${initdir}/tmp/$$-kdump.conf
echo "path $_save_path" >> ${initdir}/tmp/$$-kdump.conf
fi
}
#install kdump.conf and what user specifies in kdump.conf

3
mkdumprd
View File

@ -13,6 +13,9 @@ conf_file="/etc/kdump.conf"
SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
SAVE_PATH=$(grep ^path $conf_file| cut -d' ' -f2)
[ -z "$SAVE_PATH" ] && SAVE_PATH=$DEFAULT_PATH
# strip the duplicated "/"
SAVE_PATH=$(echo $SAVE_PATH | tr -s /)
extra_modules=""
dracut_args=("--hostonly" "-o" "plymouth dash resume")
OVERRIDE_RESETTABLE=0