From: Christian Wimmer <telefonchris@icloud.com>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Qu WenRuo <wqu@suse.com>, Anand Jain <anand.jain@oracle.com>,
"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>
Subject: Re: need help in a broken 2TB BTRFS partition
Date: Sat, 16 Oct 2021 14:29:40 -0300 [thread overview]
Message-ID: <867E9DE5-055F-4385-822F-6EA83A6E8914@icloud.com> (raw)
In-Reply-To: <4d075e71-be3c-cc41-bbf4-51d255e25b2b@gmx.com>
>>
>> I already run the command btrfs restore /dev/sdd1 . and could restore 90% of the data but not the important last 10%.
>
> Using newer kernel like v5.14, you can using "-o ro,rescue=all" mount
> option, which would act mostly like btrfs-restore, and you may have a
> chance to recover the lost 10%.
Very nice! I updated to 5.14 and mounted with "-o ro,rescue=all” and yes, I can see all data now.
I guess this is just for data recovery, not a permanent mount option, right?
I should rescue the data and format the disc again, right?
>
>>
>> My system is:
>>
>> Suse Tumbleweed inside Parallels Desktop on a Mac Mini
>>
>> Mac Min: Big Sur
>> Parallels Desktop: 17.1.0
>> Suse: Linux Suse_Tumbleweed 5.13.2-1-default #1 SMP Thu Jul 15 03:36:02 UTC 2021 (89416ca) x86_64 x86_64 x86_64 GNU/Linux
>>
>> Suse_Tumbleweed:~ # btrfs --version
>> btrfs-progs v5.13
>>
>> The disk /dev/sdd1 is one of several 2TB partitions that reside on a NAS attached to the Mac Mini like
>
> /dev/sdd1 is directly mapped into the VM or something else?
>
> Or a file in remote filesystem (like NFS) then mapped into the VM?
It is a file on a SAS External Physical Volume that is formatted in Mac OS Extended and attached to the Parallels as an additional disc, then formatted inside linux with btrfs
BTW, I think now I know exactly what I did wrong to get to this stage.
I suspended my Virtual Machine with all discs still mounted. Then I started a new Virtual machine with the same discs attached and this confused the discs.
Should avoid this.
next prev parent reply other threads:[~2021-10-16 17:30 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-06 3:44 [PATCH] btrfs-progs: Skip device tree when we failed to read it Qu Wenruo
2019-12-06 6:12 ` Anand Jain
2019-12-06 15:50 ` Christian Wimmer
2019-12-06 16:34 ` Christian Wimmer
[not found] ` <762365A0-8BDF-454B-ABA9-AB2F0C958106@icloud.com>
2019-12-07 1:16 ` Qu WenRuo
2019-12-07 3:47 ` Christian Wimmer
2019-12-07 4:31 ` Qu Wenruo
2019-12-07 13:03 ` Christian Wimmer
2019-12-07 14:10 ` Qu Wenruo
2019-12-07 14:25 ` Christian Wimmer
2019-12-07 16:44 ` Christian Wimmer
2019-12-08 1:21 ` Qu WenRuo
2019-12-10 21:25 ` Christian Wimmer
2019-12-11 0:36 ` Qu Wenruo
2019-12-11 15:57 ` Christian Wimmer
[not found] ` <9FB359ED-EAD4-41DD-B846-1422F2DC4242@icloud.com>
2020-01-04 17:07 ` 12 TB btrfs file system on virtual machine broke again Christian Wimmer
2020-01-05 4:03 ` Chris Murphy
2020-01-05 13:40 ` Christian Wimmer
2020-01-05 14:07 ` Martin Raiber
2020-01-05 14:14 ` Christian Wimmer
2020-01-05 14:23 ` Christian Wimmer
2020-01-05 4:25 ` Qu Wenruo
2020-01-05 14:17 ` Christian Wimmer
2020-01-05 18:50 ` Chris Murphy
2020-01-05 19:18 ` Christian Wimmer
2020-01-05 19:36 ` Chris Murphy
2020-01-05 19:49 ` Christian Wimmer
2020-01-05 19:52 ` Christian Wimmer
2020-01-05 20:34 ` Chris Murphy
2020-01-05 20:36 ` Chris Murphy
[not found] ` <3F43DDB8-0372-4CDE-B143-D2727D3447BC@icloud.com>
2020-01-05 20:30 ` Chris Murphy
2020-01-05 20:36 ` Christian Wimmer
2020-01-05 21:13 ` Chris Murphy
2020-01-05 21:58 ` Christian Wimmer
2020-01-05 22:28 ` Chris Murphy
2020-01-06 1:31 ` Christian Wimmer
2020-01-06 1:33 ` Christian Wimmer
2020-01-11 17:04 ` 12 TB btrfs file system on virtual machine broke again (third time) Christian Wimmer
2020-01-11 17:23 ` Christian Wimmer
2020-01-11 19:46 ` Chris Murphy
2020-01-13 19:41 ` 12 TB btrfs file system on virtual machine broke again (fourth time) Christian Wimmer
2020-01-13 20:03 ` Chris Murphy
2020-01-31 16:35 ` btrfs not booting any more Christian Wimmer
2020-05-08 12:20 ` btrfs reports bad key ordering after out of memory situation Christian Wimmer
2020-01-05 23:50 ` 12 TB btrfs file system on virtual machine broke again Qu Wenruo
2020-01-06 1:32 ` Christian Wimmer
2020-01-11 7:25 ` Andrei Borzenkov
2021-10-15 21:01 ` need help in a broken 2TB BTRFS partition Christian Wimmer
2021-10-16 10:08 ` Qu Wenruo
2021-10-16 17:29 ` Christian Wimmer [this message]
2021-10-16 22:55 ` Qu Wenruo
2021-10-16 17:35 ` Christian Wimmer
2021-10-16 23:27 ` Qu Wenruo
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