Date: Fri, 11 Sep 2020 11:31:16 +0200 From: Ludovit Koren <ludovit.koren@gmail.com> To: David Christensen <dpchrist@holgerdanske.com> Cc: "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: ZFS snapshot - rollback problem Message-ID: <CADZBGL5yzM73NsQiD7-uHgdN%2BSRnac-7_4P9HQSeN5VUzopSuw@mail.gmail.com> In-Reply-To: <2ab7551a-ff62-70fd-61a3-04d678f1281b@holgerdanske.com> References: <CADZBGL4C83JyMqHNP5A_aUV%2BddXxbd2F7RtCQhox4dCKKQAqLw@mail.gmail.com> <54720a77-5a14-06f9-c146-17e1e8f8a99e@holgerdanske.com> <CADZBGL5s5dWrc3Q0aX8xAEhbN2BXZyvsDyKVByd6A1cnVYsUrw@mail.gmail.com> <2ab7551a-ff62-70fd-61a3-04d678f1281b@holgerdanske.com>
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On Friday, September 11, 2020, David Christensen <dpchrist@holgerdanske.com=
>
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@jedi:/usr/obj/usr/src/sys/HP amd64
>>>>
>>>
> I do not understand how your system can work at all if the root filesyste=
m
>>> is mounted at /mnt (?). Is your FreeBSD running on a different disc? =
Do
>>> you have a multiple system disks, multi-boot, etc.?
>>>
>>
> If you see the time of creation,
>>
>
> I find it very useful to show the date, time, username, hostname, and pat=
h
> in my shell prompt. I use the toor account, the Bash shell, and export P=
S1
> in ~/.profile:
>
> 2020-09-11 00:31:08 toor@f3 ~
> # grep 'export PS1' .profile
> export PS1=3D'\n\D{%Y-%m-%d %H:%M:%S} '${USER}'@\h \w\n\$ '
>
>
> I think at that time it was a workaround how to install on the zfs.
>>
>
> Please run and post:
>
> # zfs list
>
>
> I did not changed it, since. No the FreeBSD is
>> running from the disk. I have neither multiple system disks, nor
>> multi-boot.
>>
>
> Okay.
>
>
> In the /boot/loader.conf I have vfs.root.mountfrom=3D"zfs.zroot"
>>
>
> Okay.
>
>
> After zfs snapshot, which I did on the root,
>>
>
> Please post your console session.
>>>
>>
> ?
>
>
> camcontrol devlist
>>
>> <Samsung SSD 840 PRO Series DXM04B0Q> at scbus0 target 0 lun 0
>> (ada0,pass0)
>> <AHCI SGPIO Enclosure 2.00 0001> at scbus3 target 0 lun 0 (pass1)
>>
>
> Okay.
>
>
> gpart show
>> =3D> 34 500118125 ada0 GPT (238G)
>> 34 128 1 freebsd-boot (64K)
>> 162 500117997 2 freebsd-zfs (238G)
>>
>
> Please run and post:
>
> # gpart show -l
>
>
> gpart show -l
=3D> 34 500118125 ada0 GPT (238G)
34 128 1 (null) (64K)
162 500117997 2 disk0 (238G)
> Did you partition the disk by hand, use the FreeBSD installer, or
> something else?
If I remember correctly, using installer
>
>
> mount
>> 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)
>>
>
> Okay. zroot is mounted at /, which makes sense.
>
>
> zpool status
>> pool: zroot
>> state: ONLINE
>> status: Some supported features are not enabled on the pool. The pool ca=
n
>> 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
>> support
>> 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
>> config:
>>
>> NAME STATE READ WRITE CKSUM
>> zroot ONLINE 0 0 0
>> gpt/disk0 ONLINE 0 0 0
>>
>> errors: No known data errors
>>
>
> Okay.
>
>
> Please post a console session showing the ZFS snapshot and rollback
> problem(s).
>
zfs rollback zroot/swapdisk0@200909
cannot rollback =C2=B4zroot/swapdisk0': out of space
zfs rollback zroot@200909
nothing happens, even if I wait several hours, or it hangs, respectivelly
lk
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