Re: no rw xfs file systems in mtab: /proc/mounts

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On Mon, Jan 10, 2011 at 04:55:02PM +0100, Honza Fikar wrote:
> On 12/29/2010 02:09 PM, Christoph Hellwig wrote:
> > Can you please apply the debug patch below and see what output fsr gives
> > with it?
> 
> the output is:
> 
> #fsr/xfs_fsr -v -d
> fsr: cannot stat /dev/mapper/root
> no rw xfs file systems in mtab: /etc/mtab
> 
> /dev/mapper/root is really missing, even though mount shows:
> 
> /dev/mapper/root on / type xfs
> (rw,noatime,attr2,inode64,logbufs=8,logbsize=256k,noquota)
> 
> maybe it gets lost during initrd?
> 
> easy and dirty fix is ln -s /dev/root /dev/mapper/root

There's no easy way for xfs to work around the fact that a device
listed in /proc/mounts doesn't exist.

This might be a fallout of the big dm naming mess that happened due
to udev's insistance to be the only authority for device names.

I'd recommend to report a bug to your distribution about the
missing device name.

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