Bug 158839 - [zfs] ZFS Bootloader Fails if there is a Dead Disk
Summary: [zfs] ZFS Bootloader Fails if there is a Dead Disk
Status: Closed Overcome By Events
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 8.2-RELEASE
Hardware: Any Any
: Normal Affects Only Me
Assignee: Bugmeister
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-07-12 17:10 UTC by Felix
Modified: 2025-01-19 06:15 UTC (History)
1 user (show)

See Also:

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Felix 2011-07-12 17:10:12 UTC 
When booting with a dead disk using a raidz1 zfs boot, zfs fails to boot with the following message:

ZFS: i/o error - all block copies unavailable
ZFS: can't read MOS object directory
Can't find root filesystem - giving up
ZFS: unexpected object set type 0
ZFS: unexpected object set type 0

FreeBSD/i386 boot
Default: zroot:/boot/kernel/kernel
boot:

Fix: 

The problem can be temporarily fixed by removing the disk and running zpool import from a boot disk livefs.
How-To-Repeat: Have a dead disk in a zpool and reboot a few times.
Comment 1 Mark Linimon freebsd_committer freebsd_triage 2011-07-12 17:47:36 UTC 
Responsible Changed
From-To: freebsd-bugs->freebsd-fs

Over to maintainer(s).
Comment 2 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 08:01:21 UTC 
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

Mail being skipped
Comment 3 Mark Linimon freebsd_committer freebsd_triage 2025-01-19 06:15:44 UTC 
^Triage: I'm sorry that this PR did not get addressed in a timely fashion.

By now, the version that it was created against is long out of support.
As well, many newer versions of ZFS have been imported.

Please re-open if it is still a problem on a supported version.