DevLabel / JFS FileSystem...

Gary_Lerhaupt@Dell.com Gary_Lerhaupt at Dell.com
Mon Apr 12 10:26:01 CDT 2004


Well, certainly something is messed up.  However, the bulk of the code
taken to create partition_uuid was taken verbatim from mount.  This
should include jfs uuid support.  In fact, can you attempt to use mount
to mount by UUID and see if that is successful?

Gary

> -----Original Message-----
> From: linux-poweredge-admin at dell.com
> [mailto:linux-poweredge-admin at dell.com]On Behalf Of Brad Viviano
> Sent: Monday, April 12, 2004 9:13 AM
> To: linux-poweredge at dell.com
> Subject: DevLabel / JFS FileSystem...
> 
> 
> This might be alittle off topic, but since devlabel is hosted 
> by Dell, I
> thought someone monitoring this list might know the answer to 
> my question.  I
> have a PE2650 running RHEL 3 Update 1.  I am trying to use 
> DevLabel with a JFS
> based file system which is located on a RAID5 drive set inside my 2650
> connected to the Perc3/DI controller.  When I run devlabel on 
> one of the
> partitions it tells me:
> 
> Uniqueness check failed.  The following devices have the same UUID:
> /dev/sde7
> /dev/sde8
> /dev/sde9
> 
> Failure.
> The device UUID for /dev/sde7 is identical to other devices 
> on your system.
> Because of this, you cannot use devlabel with this device.
> 
> sde7, sde8, and sde9 are all JFS file systems.  I have traced 
> the problem to
> /usr/bin/partition_uuid.  When I run that on any of the 
> filesystems that are
> JFS based it always returns 
> "00000000-0000-0000-0000-000000000000".  But
> partition_uuid works fine for EXT3/SWAP type file systems.  I 
> have loaded the
> latest RPM from linux.dell.com/devlabel with no affect.  
> blkid /dev/sde7
> returns the correct information:
> 
> /dev/sde7: LABEL="raid2c" 
> UUID="e73ea11d-3019-4510-9f67-2160be89279a" TYPE="jfs"
> 
> So I know it is getting a LABEL/UUID.  Is there some patch to 
> devlabel, or do
> I need to do something else (Some tune paramiter) on JFS file 
> systems to get
> devlabel to read the UUID on a JFS filesytem.
> 
> In case anyone is wondering why I don't just use "LABEL=" in 
> /etc/fstab, I was
> using that, but as it turns out my PE2650 crashed last night 
> and left the JFS
> file systems in an unclean state, at reboot I was getting 
> errors saying it was
> unable to locate drive with LABEL=raid2c, but my EXT3 
> FileSystems using
> devlabel mounted without issue.  Turns out the system can not 
> read the LABEL=
> value off a dirty JFS file system, once I manually ran 
> jfs_fsck /dev/sde7 I
> was able to mount without issue.  So I would like to switch 
> to devlabel for
> my JFS file systems.  Any ideas?
> 
> 	Thanks,
> 		-Brad
> 
> -- 
> +-------------------------------------------------------------
> -------------+
> | viviano at geomagic.com          Systems Support          
> Raindrop Geomagic |
> +-------------------------------------------------------------
> -------------+
> 
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