[Bug 193237] New: Boot attempts to execute `fsck_zfs`, fails and goes single-user.

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Sep 2 02:07:19 UTC 2014


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193237

            Bug ID: 193237
           Summary: Boot attempts to execute `fsck_zfs`, fails and goes
                    single-user.
           Product: Base System
           Version: 10.0-RELEASE
          Hardware: amd64
                OS: Any
            Status: Needs Triage
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: zyxabacab at yahoo.com

After a system crash, the boot process stops while trying to execute
`fsck_zfs`.

The crash occurred when trying to mount UnionFS from a directory in a storage
filesystem to a path in the root FS.

The ZFS filesystems are in legacy mode, with mountpoints defined in
'/etc/fstab'.  If set to non-legacy, or manually mounted in single-user mode,
everything mounts okay and the system boots.  `zpool scrub` finds no errors and
does not solve the problem.

Relevant bootup messages (after running `fsck` once and rebooting):

Starting filesystem checks:
/dev/ada0p3: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/ada0p3: clean, 31540463 free (1663 frags, 3942350 blocks, 0.0%
fragmentation)
fsck: exec fsck_zfs for storage/data1 in /sbin:/usr/sbin: No such file or
directory
fsck: exec fsck_zfs for storage/data2 in /sbin:/usr/sbin: No such file or
directory
fsck: exec fsck_zfs for storage/data1 in /sbin:/usr/sbin: No such file or
directory
fsck: exec fsck_zfs for storage/data2 in /sbin:/usr/sbin: No such file or
directory
/dev/ada0p4: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/ada0p4: clean, 64996259 free (35 frags, 8124528 blocks, 0.0%
fragmentation)
THE FOLLOWING FILE SYSTEMS HAD AN UNEXPECTED INCONSISTENCY:
  zfs: storage/data2 (/mnt/storage/data2), zfs: storage/data1
(/mnt/storage/data1)
Unknown error; help!
ERROR: ABORTING BOOT (sending SIGTERM to parent)!
Sep 1 18:34:58 init: /bin/sh on /etc/rc terminated abnormally, going to single
user mode

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