>>>>> "Annamalai" == Annamalai Gurusami <annamalai.gurusami@xxxxxxxxxx> writes: Annamalai> "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? Annamalai> I did installation two times. My first installation Annamalai> attempt failed and I repeated the process. I don't Annamalai> remember what exactly failed in the first attempt. In the Annamalai> two attempts, I guess I might have given different hard Annamalai> disk for the root file system. In each attempt, I told Annamalai> Ubuntu to use both the hard disks with LVM. So once you find out which disk boots Linux ok, note down the partition layout. Then reboot with the second disk attached and make sure you do something like: dd if=/dev/zero bs=64k count=512 /dev/sd<second disk> which will be either sda or sdb. This 'dd' command will wipe the partition table and all the LVM data as well, so you can install windows on it. Good luck. Annamalai> Suppose Ubuntu is installed on both the hard disks, then I should be Annamalai> able to boot Ubuntu from either of them. But currently I can boot from Annamalai> 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? Annamalai> I don't have a live CD ready with me. I'll try the other simpler option Annamalai> (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. Annamalai> I'll try this first and let you know how it goes. Annamalai> Thanks. Annamalai> Rgds, Annamalai> anna Annamalai> -- mysql> help year data type; Annamalai> Name: 'YEAR DATA TYPE' Annamalai> Description: Annamalai> YEAR[(4)] Annamalai> A year in 4-digit format. MySQL displays YEAR values in YYYY format, Annamalai> but permits assignment of values to YEAR columns using either strings Annamalai> 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/
