On 02/21/2011 08:17 PM, Matthew Saltzman wrote: > I deleted the partition immediately in front of an LVM physical volume. > I'd like to use the freed space as part of the LVM volume group. I know > I could create a new partition in the same place, make it a physical > volume and add it to the group, but because the space is contiguous, I > wondered if it is possible just to move the front of the existing PV > partition to include the freed space. > > I tried changing the start of the partition using fdisk, but then the PV > is no longer recognized by LVM. I suppose that means that there is > information about the PV stored in a particular location at the front of > the partition. Putting the starting point back makes the PV > recognizable again. > > So is there a utility that can move the front of a physical volume > partition? (gparted and fdisk apparently can't). What you are attempting is quite dangerous. I don't know if automated tools exist for this, but you should do this: let's suppose you have this layout partition 5 cyl 1600-1999 empty space partition 6 cyl 2000-2999 existing PV - destroy partition 5 and 6 with fdisk (not joking!) - copy data from 2000-2999 to 1600-2599 (dd on /dev/sda with appropriate bs,seek,skip,count) - now create partition 5 on 1600-2599 At this point you should have your PV available again and you have simplified your problem to "I want to enlarge a PV", which you can do with fdisk (part5 from 1600 to 2999) and pvresize. Another probably much safer solution would be: - get a spare disk (even USB external one) - create new PV, add to VG, pvmove your PV to the new PV - destroy and recreate your PV - pvmove from USB PV to enlarged PV - remove USB PV This is less error prone. It can happen while the filesystem is R/W mounted too. -- Roberto Ragusa mail at robertoragusa.it -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
