diff options
| author | Denys Dmytriyenko <denis@denix.org> | 2009-03-17 14:32:59 -0400 |
|---|---|---|
| committer | Denys Dmytriyenko <denis@denix.org> | 2009-03-17 14:32:59 -0400 |
| commit | 709c4d66e0b107ca606941b988bad717c0b45d9b (patch) | |
| tree | 37ee08b1eb308f3b2b6426d5793545c38396b838 /recipes/openprotium-init/files/initscripts/fixfstab | |
| parent | fa6cd5a3b993f16c27de4ff82b42684516d433ba (diff) | |
rename packages/ to recipes/ per earlier agreement
See links below for more details:
http://thread.gmane.org/gmane.comp.handhelds.openembedded/21326
http://thread.gmane.org/gmane.comp.handhelds.openembedded/21816
Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Acked-by: Mike Westerhof <mwester@dls.net>
Acked-by: Philip Balister <philip@balister.org>
Acked-by: Khem Raj <raj.khem@gmail.com>
Acked-by: Marcin Juszkiewicz <hrw@openembedded.org>
Acked-by: Koen Kooi <koen@openembedded.org>
Acked-by: Frans Meulenbroeks <fransmeulenbroeks@gmail.com>
Diffstat (limited to 'recipes/openprotium-init/files/initscripts/fixfstab')
| -rw-r--r-- | recipes/openprotium-init/files/initscripts/fixfstab | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/recipes/openprotium-init/files/initscripts/fixfstab b/recipes/openprotium-init/files/initscripts/fixfstab new file mode 100644 index 0000000000..67116a12fd --- /dev/null +++ b/recipes/openprotium-init/files/initscripts/fixfstab @@ -0,0 +1,91 @@ +#!/bin/sh +# validate /etc/fstab against the current UUID list in +# /etc/uuid_by_partition +# +. /etc/default/functions +pfile=/etc/uuid_by_partition + +# +# use debug to find out what is going on +test "$1" = start -o "$1" = debug || exit 0 + +# +# obtain the current list of parititions with UUIDs +newlist="$(uuid_by_partition)" + +if test -r "$pfile" +then + # read the old list + oldlist="$(cat "$pfile")" + # + # if it hasn't changed nothing need be done + test "$newlist" = "$oldlist" && exit 0 + # + # it has changed, but this only matters if + # a previously existing uuid has moved, build + # a list of old device vs new device for every + # uuid which has moved + changedlist="$( + { echo "$oldlist" + echo "$newlist" + } | awk 'device[$2] == ""{device[$2] = $1} + device[$2] != $1{print device[$2], $1}')" + + if test -n "$changedlist" + then + # at least one partition has moved, scan the + # current fstab to see if it has a reference + # to this partition + changedfstab="$( + { echo "$changedlist" + echo '#fstab' + cat /etc/fstab + } | awk 'BEGIN{list=1} + list==1 && $0=="#fstab"{list=0; continue} + list==1{new[$1] = $2; continue} + new[$1] != ""{print $1, new[$1]}')" + + # if this list is not empty edit the fstab + if test -n "$changedfstab" + then + rm -f /tmp/fstab.$$ + # if the edit fails then do not overwrite the old + # partition list - just exit with an error + { echo "$changedlist" + echo '#fstab' + cat /etc/fstab + } | awk 'BEGIN{list=1} + list==1 && $0=="#fstab"{list=0; continue} + list==1{new[$1] = $2; continue} + new[$1] != ""{$1 = new[$1]} + {print}' >/tmp/fstab.$$ || { + if test "$1" = start + then + logger -s "/etc/init.d/fixfstab: /tmp/fstab.$$: awk failed" + else + echo "debug: awk script failed with:" >&2 + echo "$changedlist" >&2 + echo "output in /tmp/fstab.$$" >&2 + fi + exit 1 + } + + if test "$1" = start + then + mv /tmp/fstab.$$ /etc/fstab || { + logger -s "/etc/init.d/fixfstab: /tmp/fstab.$$: update failed" + exit 1 + } + else + echo "debug: fstab changed:" + diff -u /etc/fstab /tmp/fstab.$$ + fi + fi + fi +fi + +# write the new list to the file, only if we +# are doing something... +test "$1" = start && echo "$newlist" >"$pfile" + +exit 0 |