Alfred von Campe wrote: > I have a disk on which CentOS is installed and running. The disk > partitions look like this: > > Disk /dev/sda: 42.9 GB, 42949672960 bytes > 255 heads, 63 sectors/track, 5221 cylinders > Units = cylinders of 16065 * 512 = 8225280 bytes > > Device Boot Start End Blocks Id System > /dev/sda1 * 1 13 104391 83 Linux > /dev/sda2 14 1044 8281507+ 8e Linux LVM > > What I would like to do is increase the size of the second partition > to be the entire disk, and then grow the logical volume(s) and the > file systems on it. BTW, this is all on a VMware virtual disk, so I > really can't screw things up, as I have a copy of the VMDK files and > can start over again (and again, and again...). The disk was > originally 8GB, and I just resized it with vmware-vdiskmanager. > > I have tried to use parted to resize the partition, but I get the > message "Error: Could not detect file system.", and I can't find a way > to resize the partition with fdisk and sfdisk. Am I missing something > obvious or is this not doable? I would just create an additional partition /dev/sda3 with the free space. This partition can be added to the PVS: pvcreate /dev/sda3 vgextend VolGroup00 /dev/sda3 lvextend -L20G /dev/VolGroup00/diskname resize2fs /dev/VolGroup00/diskname 20G Depends of course on how your volume group is named. See the man pages for details. Don't mess with the LVM partition using parted, but you figured that one out yourself :-) Theo PS. If booted from a rescue disk, use lvscan to find the LVM group. Then activate the volume group by vgchange -a y