disk replacement

[Paul Howarth]

Oliver Vecernik wrote:
> Hi,
> 
> Paul Howarth schrieb:
> 
>>You can then boot back into Fedora, in which "df" should show the 
>>reduced size of the partition. You can then use pvmove to move 
>>everything off /dev/hdb1 onto /dev/hda2, and then vgreduce to remove 
>>/dev/hdb1 from the volume group. At that point you can then repartition 
>>hdb, add a new LVM physical volume into your volume group (vgextend), 
>>use pvmove to move all the data to hdb, and vgreduce to remove hda2 from 
>>the volume group. You can also use ext2online to bring the 
>>/dev/VolGroup00/LogVol00 filesystem up to the full size of the volume 
>>it's on so that no space is wasted.
> 
> 
> Hmm - still another problem. That's how far I got:
> 
> # df -h
> Dateisystem          Größe Benut  Verf Ben% Eingehängt auf
> /dev/mapper/VolGroup00-LogVol00
>                        30G  4,4G   24G  16% /
> /dev/hda1              99M   16M   79M  17% /boot
> none                  252M     0  252M   0% /dev/shm
> 
> # vgdisplay -v
>     Finding all volume groups
>     Finding volume group "VolGroup00"
>   --- Volume group ---
>   VG Name               VolGroup00
>   System ID
>   Format                lvm2
>   Metadata Areas        2
>   Metadata Sequence No  7
>   VG Access             read/write
>   VG Status             resizable
>   MAX LV                0
>   Cur LV                2
>   Open LV               2
>   Max PV                0
>   Cur PV                2
>   Act PV                2
>   VG Size               75,47 GB
>   PE Size               32,00 MB
>   Total PE              2415
>   Alloc PE / Size       1056 / 33,00 GB
>   Free  PE / Size       1359 / 42,47 GB
>   VG UUID               Scg1fw-WM5q-eoj5-rcf8-AAAi-sKmV-nrWAYK
> 
>   --- Logical volume ---
>   LV Name                /dev/VolGroup00/LogVol00
>   VG Name                VolGroup00
>   LV UUID                c3JfzP-cN3w-v49v-nXYN-whIc-b5A2-f7KMzx
>   LV Write Access        read/write
>   LV Status              available
>   # open                 1
>   LV Size                32,00 GB
>   Current LE             1024
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     0
>   Block device           253:0
> 
>   --- Logical volume ---
>   LV Name                /dev/VolGroup00/LogVol01
>   VG Name                VolGroup00
>   LV UUID                K6Tqyu-jO0S-BpPC-8ob7-t7Qd-SOQ1-aK6EUY
>   LV Write Access        read/write
>   LV Status              available
>   # open                 1
>   LV Size                1,00 GB
>   Current LE             32
>   Segments               1
>   Allocation             inherit
>   Read ahead sectors     0
>   Block device           253:1
> 
>   --- Physical volumes ---
>   PV Name               /dev/hda2
>   PV UUID               EpsJjV-7Svg-cMVX-sjdF-lMXQ-ruCB-9bzrXP
>   PV Status             allocatable
>   Total PE / Free PE    1189 / 133
> 
>   PV Name               /dev/hdb1
>   PV UUID               0bUeIv-uudT-MadJ-WDpU-yMD0-4P4n-Suitsd
>   PV Status             allocatable
>   Total PE / Free PE    1226 / 1226
> 
> 
> I moved everthing from /dev/hdb1, all PE are free now. But trying to
> reduce the VG gives me an error:
> 
> # vgreduce /dev/VolGroup00 /dev/hdb1
>   /var/lock/lvm/V_/dev/VolGroup00: open failed: Datei oder Verzeichnis
> nicht gefunden
>   Can't get lock for /dev/VolGroup00
> 
> 
> This means that some file or directory is not found. Any ideas what's
> going wrong here?

Can you try:
# vgreduce -v VolGroup00 /dev/hdb1

Paul.