add default values in fstab_lines

It's useful for passing a full fstab line including like fs_passno so fsck
can take effect.

Previously it's assumed that there's no fs_freq and fs_passno in fstab lines
so original code just append "0 0" at the end of each fstab lines.

Improve this issue by assign default value in case they are not passed in.
Three field are handled here:
fs_mntops: default to "defaults"
fs_freq: default to "0"
fs_passno: default to "2"

Signed-off-by: Dave Young <dyoung@redhat.com>

diff --git a/dracut.8.asc b/dracut.8.asc
index ba125c0d0e69126445db3395dc93710d9ff44ccf..f97074a2fe98062c1e692c2af9187ffd67784d92 100644 (file)
--- a/dracut.8.asc
+++ b/dracut.8.asc
@@ -311,9 +311,13 @@ provide a valid _/etc/fstab_.
 **--add-fstab** _<filename>_::
     Add entries of _<filename>_ to the initramfs /etc/fstab.
 
-**--mount** "_<device>_ _<mountpoint>_ _<filesystem type>_ _<filesystem options>_"::
-    Mount _<device>_ on _<mountpoint>_ with _<filesystem type>_ and _<filesystem
-    options>_ in the initramfs
+**--mount** "_<device>_ _<mountpoint>_ _<filesystem type>_ [_<filesystem options>_ [_<dump frequency>_ [_<fsck order>_]]]"::
+    Mount _<device>_ on _<mountpoint>_ with _<filesystem type>_ in the
+    initramfs. _<filesystem options>_, _<dump options>_ and _<fsck order>_ can
+    be specified, see fstab manpage for the details.
+    The default _<filesystem options>_ is "defaults".
+    The default _<dump frequency>_ is "0".
+    the default _<fsck order>_ is "2".
 
 **--add-device** _<device>_ ::
     Bring up _<device>_ in initramfs, _<device>_ should be the device name.

diff --git a/dracut.sh b/dracut.sh
index 1c5e6889c95e065d9a6dce5591b0385461d41ec9..2d5b7dc7affb49eca66964b0a2a9964438697782 100755 (executable)
--- a/dracut.sh
+++ b/dracut.sh
@@ -1234,7 +1234,11 @@ if [[ $kernel_only != yes ]]; then
     [[ $kernel_cmdline ]] && printf "%s\n" "$kernel_cmdline" >> "${initdir}/etc/cmdline.d/01-default.conf"
 
     while pop fstab_lines line; do
-        printf "%s\n" "$line 0 0" >> "${initdir}/etc/fstab"
+        line=($line)
+        [ -z "${line[3]}" ] && line[3]="defaults"
+        [ -z "${line[4]}" ] && line[4]="0"
+        [ -z "${line[5]}" ] && line[5]="2"
+        echo "${line[@]}" >> "${initdir}/etc/fstab"
     done
 
     for f in $add_fstab; do