From: "Helmut Hullen" <Hullen@t-online.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: INSTALL hint: create device btrfs-control
Date: 05 Aug 2011 12:19:00 +0200 [thread overview]
Message-ID: <BrHgMJyi1uB@helmut.hullen.de> (raw)
In-Reply-To: <20110804204219.GB8970@carfax.org.uk>
Hallo, Hugo,
Du meintest am 04.08.11:
>>> What are the symptoms of not having the device node? (i.e. how
>>> would I diagnose this particular problem?)
>> If I remember correct: mounting works, writing works, reading works.
>> And adding another partition works.
>>
>> But there are strange messages when I try to resize or delete.
>>
>> I'll try to reproduce these messages ...
> Thanks. We can add those as symptoms to the solution later.
Maybe I've found the place of the (unique?) problem.
Partitions:
sdb1 2 GByte
sdb2 3 GByte
sdb3 4 Gbyte
mkfs.btrfs -L Probe -m raid0 -d raid1 /dev/sdb1
mount LABEL=Probe /mnt/Probe
filling with about 600 MByte (1 *.iso)
btrfs device add /dev/sdb2 /mnt/Probe
btrfs filesystem balance /mnt/Probe
(ok)
btrfs device add /dev/sdb3 /mnt/Probe
filling with a DVD *.iso (more than 4 GByte)
btrfs filesystem balance /mnt/Probe
(ok)
And then:
btrfs device delete /dev/sdb2 /mnt/Probe
works fine, if /dev/btrfs-control exists
crashes (shown with "dmesg") if this device doesn't exist.
Viele Gruesse!
Helmut
prev parent reply other threads:[~2011-08-05 10:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-04 10:10 INSTALL hint: create device btrfs-control Helmut Hullen
2011-08-04 17:35 ` Hugo Mills
2011-08-04 18:35 ` Helmut Hullen
2011-08-04 20:13 ` Helmut Hullen
2011-08-04 20:42 ` Hugo Mills
2011-08-04 21:26 ` Helmut Hullen
2011-08-04 21:49 ` Hugo Mills
2011-08-05 5:43 ` Helmut Hullen
2011-08-05 10:19 ` Helmut Hullen [this message]
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