I have lost the web page with the steps to do an extension of an LVM into unused disk space. Let me explain my situation and ask my question. I have a server with Red Hat Enterprise Linux 5. It had two 250GB hard drives in a hardware RAID 1 mirror. Working fine. We needed more space, so here is what I did: - Bought two identical model and recommended 1TB drives from Dell. (It's a Dell server.) - Using the RAID control interface, I took one 250GB drive offline. - Shutdown the server and removed the 250GB drive. - Installed one of the new 1TB drives in place of the 250GB drive just removed. - Powered up the RAID controller BIOS interface and commanded a rebuild of the mirror from the remaining 250GB drive to the 1TB drive. - Booted the system and everything was working. - Shutdown the system and removed the second 250GB drive, replacing it with the other 1TB drive. - Again used the RAID controller BIOS interface to rebuild the mirror from the first 1TB drive to the second one. - Booted the system and all is working well! Except... Now the partition table of the mirrored 1TB drives still only has partitions to use up to the old 250GBs. I need to: 1 - Update the partition table to expand the last partition into the unused 750GB of space. (parted?) 2 - Expand the one or more logical volumes into the new space (lvextend) 3 - Expand the file system(s) into the new space (resize2fs) I plan to expand /dev/sda5 into the empty space. It is the last partition defined and so the least risky to expand, in my mind. Here is the fdisk output: # fdisk -l Disk /dev/sda: 248.9 GB, 248999051264 bytes 255 heads, 63 sectors/track, 30272 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 1 7 56196 de Dell Utility /dev/sda2 8 1052 8393962+ 8e Linux LVM /dev/sda3 * 1053 1077 200812+ 83 Linux /dev/sda4 1078 30272 234508837+ 5 Extended /dev/sda5 1078 30272 234508806 8e Linux LVM # Question I am extending into empty space on currently installed drives. The instructions I can find online all seem to assume a new physical drive has been added and don't go into the partition issues on step 1 of my outline above. All the utilities and commands that produce LVM information do not show the vast, unpartitioned space out there. So, I assume step 1 is needed to open up the unallocated space into one of the partitions. Am I on the right track, to use "parted" and expand the partition definition before expanding a logical volume? Or am I missing something or making something more difficult? Alan --------------------------------------------------- PLUG-discuss mailing list - PLUG-discuss@lists.plug.phoenix.az.us To subscribe, unsubscribe, or to change your mail settings: http://lists.PLUG.phoenix.az.us/mailman/listinfo/plug-discuss