Bug 249157 - installer reports sysctl: unknown oid 'vfs.zfs.min_auto_ashift' when ZFS module not loaded
Summary: installer reports sysctl: unknown oid 'vfs.zfs.min_auto_ashift' when ZFS modu...
Status: Closed Unable to Reproduce
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: Ed Maste
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2020-09-07 00:06 UTC by Ed Maste
Modified: 2026-01-04 15:54 UTC (History)
3 users (show)

See Also:

Attachments
Obeserved unknown oid 'vfs.zfs.min_auto_ashift' (70.86 KB, image/png)
2022-07-12 12:07 UTC, Hermes T K 		no flags Details
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Description Ed Maste freebsd_committer freebsd_triage 2020-09-07 00:06:55 UTC 
When ZFS is chosen in the installer it tries to set the vfs.zfs.min_auto_ashift sysctl, which does not exist after the OpenZFS import

+----------------Error: sysctl------------------+
| sysctl: unknown oid 'vfs.zfs.min_auto_ashift' |
+-----------------------------------------------+
|                   <  OK  >                    |
+-----------------------------------------------+
Comment 1 Ryan Moeller freebsd_committer freebsd_triage 2020-09-07 00:11:40 UTC 
(In reply to Ed Maste from comment #0)

This does exist now, you should not see that message if the zfs module is loaded.
Comment 2 Ed Maste freebsd_committer freebsd_triage 2020-09-07 01:42:47 UTC 
This was due to a local issue, zfs.ko on my install media was corrupt
Comment 3 Hermes T K 2022-07-12 12:07:55 UTC 
Created attachment 235214 [details]
Obeserved unknown oid 'vfs.zfs.min_auto_ashift'
Comment 4 Hermes T K 2022-07-12 12:10:13 UTC 
Observed the same error message while trying to install os on NVME drive.
What is the root cause of this issue ?
Comment 5 Ryan Moeller freebsd_committer freebsd_triage 2022-07-12 12:55:46 UTC 
(In reply to Hermes T K from comment #4)

The installer you are using might have a broken zfs module that failed to load. Check your download checksums/reflash the USB stick/do a clean build/try a different snapshot/etc.
Comment 6 ykla 2026-01-04 15:54:16 UTC 
It's easy to reproduce it if you using mfsBSD, and run bsdinstall.