linux-kernel - Differend udev names with different kernels

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Message-ID: <20080924200127.GA2452@dose.home.local>
Date:	Wed, 24 Sep 2008 22:01:27 +0200
From:	Tino Keitel <tino.keitel@....de>
To:	linux-kernel@...r.kernel.org, linux-hotplug@...r.kernel.org
Subject: Differend udev names with different kernels

Hi,

what's the intention of /dev/disk/by-id/?

My firewire hard disk seems to have different names with different
kernels.

With 2.6.26.3, it's name is
/dev/disk/by-id/ieee1394-0030e001e0006585:00043c:0000.

With someting after 2.6.27-rc7, merged with Arjan's fastboot branch,
the disk has the same name.

With 2.6.27-rc7, it is called
/dev/disk/by-id/scsi-1WDC_WD10EACS-00D6B0_WD-WCAU41668315.

One major config difference is that 2.6.26.3 has CONFIG_FIREWIRE and
CONFIG_FIREWIRE_SBP2 set to "m", whereas the 2.6.27 kernels have set
them to "y". But that doesn't explain the difference between both
2.6.27-rc kernels.

Shouldn't these names be somewhat constant? Otherwise they would be
totally useless.

Regards,
Tino
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