From: Erik Tews <erik@debian.franken.de>
To: Timothy Miller <miller@techsource.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Overlay ramdisk on filesystem?
Date: Fri, 16 Apr 2004 21:38:11 +0200 [thread overview]
Message-ID: <1082144290.4637.1.camel@localhost> (raw)
In-Reply-To: <407EF9C4.4070207@techsource.com>
Am Do, den 15.04.2004 schrieb Timothy Miller um 23:08:
> I have a feeling that this may be a bit too off-topic, but I'm doing
> some Linux and hardware performance tests, and some of the tests will
> put the hardware into an unstable state which could get memory errors
> which could cause filesystem corruption.
>
> I would like to know how I could overlay a RAM disk over a read-only
> filesystem so that all new files and modified files end up in the RAM
> disk, but old files are read from the disk. This way, when I reboot,
> the disk reverts back.
This could be possible using a ramdisk, a filesystem on a disk (which
could be a read only block device like a cdrom too), device-mapper and
its snapshot-target. But I did not try yet.
prev parent reply other threads:[~2004-04-16 21:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-15 21:08 Overlay ramdisk on filesystem? Timothy Miller
2004-04-15 21:13 ` Florian Weimer
2004-04-16 19:38 ` Erik Tews [this message]
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