"John Stoffel" <john@xxxxxxxxxxx> writes: >>>>>> "Annamalai" == Annamalai Gurusami <annamalai.gurusami@xxxxxxxxxx> writes: > > Annamalai> I am new user of LVM. At home, in a desktop machine, I > Annamalai> installed Ubuntu 20.04 LTS and while doing so I opted for > Annamalai> LVM. This desktop computer has 2 hard disks. I want to > Annamalai> remove 1 hard disk and use it for another computer. But I > Annamalai> need to remove the hard disk without loss of data. The > Annamalai> problem now is that there are two VG listed, while I think > Annamalai> it should be only one. How to identify the unwanted VG? > Annamalai> Maybe this is because of multiple attempts at installation. > Annamalai> Any help on this is much appreciated. > > Ugh! How did you do this? Did you clone one disk on top of another? I did installation two times. My first installation attempt failed and I repeated the process. I don't remember what exactly failed in the first attempt. In the two attempts, I guess I might have given different hard disk for the root file system. In each attempt, I told Ubuntu to use both the hard disks with LVM. Suppose Ubuntu is installed on both the hard disks, then I should be able to boot Ubuntu from either of them. But currently I can boot from only one of them. > Can you boot off a liveCD and do the same command again please? Also > please run the 'blkid' command show that output as well. And show the > output of 'cat /proc/partitions' and /proc/mdstat as well. Are you > running RAID on this system? Or did you try to do that? I don't have a live CD ready with me. I'll try the other simpler option (below) first and will come back to this if that didn't work. > Annamalai> Here are some of the output of the commands in that desktop: > > Looking at your 'lsblk' output, I suspect you can remove drive sda, > the Seagate. So I'd probably try to shutdown cleanly, then remove > that drive and boot up again. I'll try this first and let you know how it goes. Thanks. Rgds, anna -- mysql> help year data type; Name: 'YEAR DATA TYPE' Description: YEAR[(4)] A year in 4-digit format. MySQL displays YEAR values in YYYY format, but permits assignment of values to YEAR columns using either strings or numbers. Values display as 1901 to 2155, or 0000. _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/