ZFS snapshot - rollback problem
dpchrist at holgerdanske.com
Fri Sep 11 19:52:21 UTC 2020
On 2020-09-11 02:31, Ludovit Koren wrote:
When you reply to a message, put at least one blank line before and
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Also, please do not post people's e-mail address (mailer setting?).
> On Friday, September 11, 2020, David Christensen ... wrote:
>> On 2020-09-10 23:31, Ludovit Koren wrote:
>>> On Friday, September 11, 2020, David Christensen ... wrote:
>>>> On 2020-09-10 07:18, Ludovit Koren wrote:
>>>>> ~>uname -a
>>>>> FreeBSD XxX 11.3-STABLE FreeBSD 11.3-STABLE #1 r354607: Mon Nov 11
>>>>> 12:19:28 CET 2019 root at jedi:/usr/obj/usr/src/sys/HP amd64
>> Did you partition the disk by hand, use the FreeBSD installer, or
>> something else?
> If I remember correctly, using installer
I find it is better, faster, and cheaper to keep records. A networked
version control system is ideal for this.
>>> zroot on / (zfs, local, nfsv4acls)
>>> devfs on /dev (devfs, local, multilabel)
>>> fdescfs on /dev/fd (fdescfs)
>>> procfs on /proc (procfs, local)
>>> linprocfs on /compat/linux/proc (linprocfs, local)
>>> zroot/usr on /usr (zfs, local, nfsv4acls)
>>> zroot/usr/home on /usr/home (zfs, local, nfsv4acls)
>>> zroot/var on /var (zfs, local, nfsv4acls)
>>> tmpfs on /var (tmpfs, local)
>>> map -hosts on /net (autofs)
>>> map -media on /media (autofs)
>>> tmpfs on /tmp (tmpfs, local)
>> zpool status
>>> pool: zroot
>>> state: ONLINE
>>> status: Some supported features are not enabled on the pool. The pool can
>>> still be used, but some features are unavailable.
>>> action: Enable all features using 'zpool upgrade'. Once this is done,
>>> the pool may no longer be accessible by software that does not
>>> the features. See zpool-features(7) for details.
>>> scan: resilvered 0 in 0 days 00:00:00 with 0 errors on Sat Apr 6
>>> 20:39:05 2019
>>> NAME STATE READ WRITE CKSUM
>>> zroot ONLINE 0 0 0
>>> gpt/disk0 ONLINE 0 0 0
>>> errors: No known data errors
> zfs rollback zroot/swapdisk0 at 200909
> cannot rollback ´zroot/swapdisk0': out of space
I believe I have seen that error message before, but have no record of
it and forget the details.
STFW I am unable to find any good hits.
The developer approach would be to install source and grep(1) for it.
> zfs rollback zroot at 200909
> nothing happens, even if I wait several hours, or it hangs, respectivelly
If the process is stuck in an infinite loop, top(1) will show it
(consider the '-m' option and/or 'm' hotkey):
# top -S -s 10
The zpool(8) 'iostat' subcommand is useful for watching ZFS I/O:
# zpool iostat -v 10
There are many other userland tools for monitoring aspects of the system
and/or processes; I need to learn more of them.
Given that you are using STABLE, you should probably seek support per
handbook section 23.4.2.
If it were my computer, I would backup, wipe, install, and migrate to
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