When I installed CentOS 4 it created a LVM partition occupying the bulk of my disk. I would like to trim it back so I can put another partition for another (thrid) operating system.
I found some directions that I thought would let me do this. I used resize2fs to resize the filesystem and lvreduce to resize the logical volume.
My problem is that I cannot reduce the size of the partition. When I do, I get errors when I try to boot:
Found volume gdevice-mapper: dm-linear: Device lookup failed roup "VolGroup00device-mapper: dm-linear: Device lookup failed " using metadataKernel panic - not syncing: Attempted to kill init! type lvm2 device-mapper ioctl cmd 9 failed: Invalid argument Couldn't load device 'VolGroup00-LogVol00'. device-mapper ioctl cmd 9 failed: Invalid argument Couldn't load device 'VolGroup00-LogVol01'.
Here is the current configuration:
lvm> vgs VG #PV #LV #SN Attr VSize VFree VolGroup00 1 2 0 wz--n 154.03G 78.06G lvm> lvs LV VG Attr LSize Origin Snap% Move Log Copy% LogVol00 VolGroup00 -wi-ao 75.00G LogVol01 VolGroup00 -wi-ao 992.00M lvm> vgdisplay --- Volume group --- VG Name VolGroup00 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 2 Open LV 2 Max PV 0 Cur PV 1 Act PV 1 VG Size 154.03 GB PE Size 32.00 MB Total PE 4929 Alloc PE / Size 2431 / 75.97 GB Free PE / Size 2498 / 78.06 GB VG UUID P8ykKE-BJgP-tOkw-IgU3-btPA-54Ge-7JlcHn
I would like to shrink the size of the Volume Group. Here is my partition table: Device Boot Start End Blocks Id System /dev/sda1 * 554 10280 78132127+ 7 HPFS/NTFS /dev/sda2 1 553 4441941 1b Hidden W95 FAT32 /dev/sda3 10281 10293 104422+ 83 Linux /dev/sda4 10294 30401 161517510 5 Extended /dev/sda5 10294 30401 161517478+ 8e Linux LVM
I thought I could just shrink sda5 to be about 77GB, but that results in the boot errors.
lvm says that pvresize is not implemented.
Any pointers?
Mike