shutdown(8): supposed to dismount all FSes?

Charles Swiger cswiger at
Fri Oct 29 09:39:28 PDT 2004

On Oct 29, 2004, at 7:53 AM, Stefek Zaba wrote:
> Chuck Swiger wrote:
>> ...I recall that there are some issues handling ext2fs filesystems 
>> cleanly during the shutdown process, which tend to cause them to not 
>> be unmounted properly.  It's considered a bug.
> Thanks, Chuck. When I tried searching the PRs for this, I came up 
> blank; but your reply caused me to search harder, and indeed this is a 
> dup of 'PR kern/56675: Syncer "giving up" on buffers and ext2 
> filesystems'
> which is still Open, reported 10sep03. My experience suggests it's 
> still a problem with 5.3-RC1.

You're certainly welcome, and I'm pleased that my memory was working 
well enough to be helpful.  :-)

> Obviously, on a "production" FreeBSD system, this bug is of minor 
> relevance, as you'll be running UFS throughouth. But for the 
> multibooters among us, who are looking (say) to straddle the Linux and 
> BSD worlds, being able to mount the "old" ext2/ext3 partitions 
> routinely is a Good Thing in easing the transition; so for such users 
> the bug is more important.

You might find that unmounting the ext2/ext3 filesystem by hand before 
rebooting is an adequate workaround, since that ought to leave the 
filesystem in a clean state.


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