lvm2 problems

[Neal Becker]

I am running FC2 (from developement).  Root is on Raid0 lvm2, created by
FC2T1.

When I boot lately, I'm seeing messages about not being able to find device
with uuid xxxx....

I just ran lvdisplay to see what it would say, and it looks like the same
message I saw at boot time:



/usr/sbin/lvdisplay
  Couldn't find device with uuid '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'.
  Couldn't find all physical volumes for volume group Volume00.
  Volume group "Volume00" not found

It is not fatal, because it manages to mount anyway:

mount
/dev/mapper/Volume00-LogVol00 on / type ext3 (rw)

Do I need to do something?

[Neal Becker]

Neal Becker wrote:

>  I am running FC2 (from developement).  Root is on Raid0 lvm2, created
> by
>  FC2T1.
>  
>  When I boot lately, I'm seeing messages about not being able to find
>  device with uuid xxxx....
>  
>  I just ran lvdisplay to see what it would say, and it looks like the same
>  message I saw at boot time:
>  
>  
>  
>  /usr/sbin/lvdisplay
>    Couldn't find device with uuid '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'.
>    Couldn't find all physical volumes for volume group Volume00.
>    Volume group "Volume00" not found
>  
>  It is not fatal, because it manages to mount anyway:
>  
>  mount
>  /dev/mapper/Volume00-LogVol00 on / type ext3 (rw)
>  
>  Do I need to do something?
>  
>  
>   
Here is some more info:

/usr/sbin/pvdisplay 
  Couldn't find device with uuid '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'.
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               Volume00
  PV Size               73.24 GB / not usable 0   
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              18749
  Free PE               0
  Allocated PE          18749
  PV UUID               wwpCTJ-Yc4C-EARb-1jnt-YPJE-TMGm-c845g8
   
  --- Physical volume ---
  PV Name               unknown device
  VG Name               Volume00
  PV Size               73.24 GB / not usable 0   
  Allocatable           yes 
  PE Size (KByte)       4096
  Total PE              18749
  Free PE               2
  Allocated PE          18747
  PV UUID               2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y

[Alexandre Oliva]

On Apr 28, 2004, Neal Becker <ndbecker2(a)verizon.net&gt; wrote:

>    Couldn't find device with uuid
> '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'.
>    Couldn't find all physical volumes for volume group Volume00.
>    Volume group "Volume00" not found 
>  It is not fatal, because it manages to mount anyway: 
Has this device ever held a RAID member?  Recent versions of lvm check
for a RAID superblock and skip block devices that contain them.  You
may use mdadm --zero-superblock (sp?) to fix that.

-- 
Alexandre Oliva             http://www.ic.unicamp.br/~oliva/
Red Hat Compiler Engineer   aoliva(a){redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva(a){lsd.ic.unicamp.br, gnu.org}

[Neal Becker]

On Monday 03 May 2004 04:39 pm, Alexandre Oliva wrote:
>  On Apr 28, 2004, Neal Becker <ndbecker2(a)verizon.net&gt; wrote:
>  >   Couldn't find device with uuid
>  > '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'. Couldn't find all physical
>  > volumes for volume group Volume00.
>  >   Volume group "Volume00" not found
>  >
>  > It is not fatal, because it manages to mount anyway:
>
>  Has this device ever held a RAID member?  Recent versions of lvm check
>  for a RAID superblock and skip block devices that contain them.  You
>  may use mdadm --zero-superblock (sp?) to fix that. 
No, this is a brand-new machine.  The first bit it saw was install from FC2T2 
IIRC.

[Neal Becker]

Alexandre Oliva wrote:

>  On Apr 28, 2004, Neal Becker <ndbecker2(a)verizon.net&gt; wrote:
>  
> >   Couldn't find device with uuid
> >   '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'. Couldn't find all physical
> >   volumes for volume group Volume00. Volume group "Volume00" not found
>  
> > It is not fatal, because it manages to mount anyway:
>  
>  Has this device ever held a RAID member?  Recent versions of lvm check
>  for a RAID superblock and skip block devices that contain them.  You
>  may use mdadm --zero-superblock (sp?) to fix that.
>   
Here is some more info:

/usr/sbin/pvdisplay 
  Couldn't find device with uuid '2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y'.
  --- Physical volume ---
  PV Name               /dev/sda2
  VG Name               Volume00
  PV Size               73.24 GB / not usable 0   
  Allocatable           yes (but full)
  PE Size (KByte)       4096
  Total PE              18749
  Free PE               0
  Allocated PE          18749
  PV UUID               wwpCTJ-Yc4C-EARb-1jnt-YPJE-TMGm-c845g8
   
  --- Physical volume ---
  PV Name               unknown device
  VG Name               Volume00
  PV Size               73.24 GB / not usable 0   
  Allocatable           yes 
  PE Size (KByte)       4096
  Total PE              18749
  Free PE               2
  Allocated PE          18747
  PV UUID               2adyAl-cmc6-kSXj-a7Nu-IPmg-YF0e-5ERd6y

It looks to me that the problem is the PV Name: Unknown device.

Please, can anyone tell me what command to use to fix this?  I can't run any
kernel after 2.6.4-1.305.