On Fri, Feb 19, 2010 at 12:23:31PM +0100, Alexander Dalloz wrote:
Given the partition which is a physical volume can be enlarged because there is free space directly after the end of the current partition, you then can do following very easily:
- fdisk /dev/<device>
1a) delete the partition to enlarge 1b) re-create the partition from the same starting point to the new size 1c) save the changes
- partprobe /dev/<device> to let the kernel know about the change
Will this work if any partitions on <device> are mounted? When I have run fdisk to modify a partition table, the kernel complains that it can't reread the partition table if there are mounted filesystems on the target disk. If the root filesystem is on the target disk, a reboot might be required. (In the past, fdisk has alerted the kernel if there's been a partition table change, so partprobe might not be needed.)
And of course, have backups when messing with the partition table. :)
--keith