[linux-lvm] root on lvm2 on raid5 problem... kernel 2.6.x

linux-lvm-admin at redhat.com linux-lvm-admin at redhat.com
Sat Feb 7 17:34:01 UTC 2004

On Thu, Feb 05, 2004 at 02:37:44PM -0600, Weber, Geoffrey M. wrote:
> I've done quite a bit of research and worked on it quite a while, but I am
> having problems booting to a lvm2 on raid5 configuration.  

>     -- The error I get when running "lvm vgchange -ay" is:
>         device-mapper: dm-linear: Device lookup failed
Some more tips that might be useful:
  dmsetup vgmknodes: creates /dev/mapper directories entries for active devices
  vgmknodes: as above, plus /dev/<vg>/<lv> links
[Useful after switching to root device]

> From the initrd image, however, vgchange is unable to activate
> the volumes.
If it's read-only, vgscan/vgchange --ignorelockingfailure
agk at uk.sistina.com

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