Bug 199697

e2fsprogs-1.35-12.3.EL4

1. Setup a machine with multipath (you don't really need to, the /etc/blkid.tab
needs to reflect that though)
blkid.tab contains:
<device DEVNO="0x0802" TIME="1151916502" LABEL="/test"
UUID="06e57d7d-f574-435c-a0aa-b2b3ed511eba" SEC_TYPE="ext3"
TYPE="ext2">/dev/sda2</device>
<device DEVNO="0x0842" TIME="1151916502" LABEL="/test"
UUID="06e57d7d-f574-435c-a0aa-b2b3ed511eba" SEC_TYPE="ext3"
TYPE="ext2">/dev/sde2</device>

Both paths lead to /test

2. Remove a path (/test is on /dev/sda1 and /dev/sde1 for example, but is still
present in the blkid.tab and /etc/fstab)

3. Reboot the machine, and look at fsck stop dead in its tracks, as it cannot
find /test (again, testcase just below)

Here's a simple testcase that replicates what fsck does right now:
--8<--
#include <blkid/blkid.h>
#include <string.h>

int main (int argc, char **argv)
{
       blkid_cache blkid;
       char *name;

       blkid_get_cache(&blkid, NULL);
       name = blkid_get_devname(blkid, "LABEL=/test", 0);
       printf ("name: %s\n", name);

       return 0;
}
--8<--

As the path has been removed, and neither block devices exist anymore (both
/dev/sda2 and /dev/sde2 are gone), fsck will try to access those, and stop saying:
--8<--
[/sbin/fsck.ext3 (1) -- /test] fsck.ext3 -a LABEL=/test
fsck.ext3: Unable to resolve 'LABEL=/test'
[FAILED]

*** An error occurred during the file system check.
*** Dropping you to a shell; the system will reboot
*** when you leave the shell.
*** Warning -- SELinux is active
*** Disabling security enforcement for system recovery.
*** Run 'setenforce 1' to reenable.
Give root password for maintenance
--8<--

It would be good if fsck could try harder to find a valid device path for that
label.