how to remove HD from LVM on /

[michael]

On 15 Aug 2007, at 17:05, michael wrote:

>
> On 14 Aug 2007, at 17:52, Markku Kolkka wrote:
>
>> michael kirjoitti viestissään (lähetysaika tiistai, 14. elokuuta
>> 2007):
>>> Hi, I've just received a PC with 2 HDs with LVM. I wish to
>>> remove one of the HDs (/dev/sdb or /dev/sda???) from the LVM
>>
>> You must shrink the / filesystem enough to fit it on one physical
>> volume, see:
>> http://forums.fedoraforum.org/showthread.php?t=154874
>
> cheers, that useful.
>
> however, for some reason the 'rescue' ISO I've downloaded (sh-3.2)  
> doesn't have lvm command

therefore i did the lvresize step within Fedora's X


>
>
>> Next, use pvmove to clear all used extents off the physical
>> volume you want to remove from LVM and then you can use
>> vgreduce.

maybe I've got something wrong/misunderstood, but I get an error with  
pvmove:

chris at veri:~$ sudo /usr/sbin/pvdisplay /dev/sdb1
Password:
   --- Physical volume ---
   PV Name               /dev/sdb1
   VG Name               VolGroup00
   PV Size               698.64 GB / not usable 10.34 MB
   Allocatable           yes
   PE Size (KByte)       32768
   Total PE              22356
   Free PE               19156
   Allocated PE          3200
   PV UUID               xDWUQB-wdEx-AtEs-YFkh-BKBR-7Jgd-9ik3p0


chris at veri:~$ sudo /usr/sbin/pvdisplay /dev/sda2
   --- Physical volume ---
   PV Name               /dev/sda2
   VG Name               VolGroup00
   PV Size               465.66 GB / not usable 3.56 MB
   Allocatable           yes
   PE Size (KByte)       32768
   Total PE              14901
   Free PE               14839
   Allocated PE          62
   PV UUID               GLGcHf-b3Ga-M61f-okkW-HaAk-Al7P-leVK91


chris at veri:~$ sudo /usr/sbin/pvmove /dev/sdb1
   Failure parsing mirror status fraction: 1 core
   Failure parsing mirror status fraction: 1 core
   ABORTING: Mirror percentage check failed.