linux-kernel - Re: The ext3 way of journalling

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <478601D7.90004@aitel.hist.no>
Date:	Thu, 10 Jan 2008 12:30:31 +0100
From:	Helge Hafting <helge.hafting@...el.hist.no>
To:	Matthias Schniedermeyer <ms@...d.de>
CC:	Tuomo Valkonen <tuomov@....fi>, linux-kernel@...r.kernel.org
Subject: Re: The ext3 way of journalling

Matthias Schniedermeyer wrote:
>>> Don't use udev then. Good old static dev works fine if you have a fixed
>>> set of devices.
>>>       
>> It doesn't, with the unpredictable SCSI mapping insanity.
>>     
>
> That what LABEL und UUID-Support in mount is for.
>
> You label the filesystems (e2label for ext2 and ext3) and use that label to mount them
>
> - fstab -
> LABEL=root  /        xfs     defaults,noatime	0 1
> LABEL=boot  /boot    ext2    defaults,noatime	0 2
>   
Would've been nice if they worked, but they don't.

Disks should be so easy to identify uniquely, because they have
storage space that can be used for that label.

So I tried (debian linux, last year).

Mount by label was fine, of course.
Until the 33rd reboot, when it was decided that a
fsck was necessary "just to be safe".  The problem was that fsck
fail to find the correct device when /etc/fstab specifies a label
instead of a device. The boot failed, reboot with init=/bin/sh
and replace the dysfunctional labels with oldfashioned device names.

I can live with this kind of problem on my desktop, but this machine
was going to be a internet router for a customer, so occational
boot failure requiring intervention was not an option.

Helge Hafting

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/