>>>>> "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? 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> 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> root@desktop02:~# lsblk --scsi Annamalai> NAME HCTL TYPE VENDOR MODEL REV TRAN Annamalai> sda 2:0:0:0 disk ATA ST2000DM005-2CW102 0001 sata Annamalai> sdb 8:0:0:0 disk ATA WDC_WD20EZAZ-00GGJB0 0A80 sata Annamalai> root@desktop02:~# vgs Annamalai> VG #PV #LV #SN Attr VSize VFree Annamalai> vgubuntu 1 2 0 wz--n- <1.82t 0 Annamalai> vgubuntu 1 2 0 wz--n- <1.82t 0 Annamalai> root@desktop02:~# pvs Annamalai> PV VG Fmt Attr PSize PFree Annamalai> /dev/sda2 vgubuntu lvm2 a-- <1.82t 0 Annamalai> /dev/sdb5 vgubuntu lvm2 a-- <1.82t 0 Annamalai> root@desktop02:~# lvs Annamalai> LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Annamalai> root vgubuntu -wi-ao---- <1.82t Annamalai> root vgubuntu -wi------- <1.82t Annamalai> swap_1 vgubuntu -wi-ao---- 976.00m Annamalai> swap_1 vgubuntu -wi------- 976.00m Annamalai> root@desktop02:~# lsblk Annamalai> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT Annamalai> loop0 7:0 0 55M 1 loop /snap/core18/1880 Annamalai> loop1 7:1 0 251M 1 loop /snap/gimp/292 Annamalai> loop2 7:2 0 161.4M 1 loop /snap/gnome-3-28-1804/128 Annamalai> loop3 7:3 0 251M 1 loop /snap/gimp/297 Annamalai> loop4 7:4 0 162.9M 1 loop /snap/gnome-3-28-1804/145 Annamalai> loop5 7:5 0 55.3M 1 loop /snap/core18/1885 Annamalai> loop6 7:6 0 255.6M 1 loop /snap/gnome-3-34-1804/36 Annamalai> loop7 7:7 0 217.9M 1 loop /snap/gnome-3-34-1804/60 Annamalai> loop8 7:8 0 62.1M 1 loop /snap/gtk-common-themes/1506 Annamalai> loop9 7:9 0 138.4M 1 loop /snap/inkscape/7947 Annamalai> loop10 7:10 0 260.7M 1 loop /snap/kde-frameworks-5-core18/32 Annamalai> loop11 7:11 0 43.2M 1 loop /snap/snap-store/415 Annamalai> loop12 7:12 0 50.7M 1 loop /snap/snap-store/481 Annamalai> loop13 7:13 0 30.3M 1 loop /snap/snapd/9279 Annamalai> loop14 7:14 0 31M 1 loop /snap/snapd/9607 Annamalai> loop15 7:15 0 217.5M 1 loop /snap/supertux/229 Annamalai> loop16 7:16 0 290.4M 1 loop /snap/vlc/1700 Annamalai> sda 8:0 0 1.8T 0 disk Annamalai> ├─sda1 8:1 0 512M 0 part Annamalai> └─sda2 8:2 0 1.8T 0 part Annamalai> sdb 8:16 0 1.8T 0 disk Annamalai> ├─sdb1 8:17 0 512M 0 part /boot/efi Annamalai> ├─sdb2 8:18 0 1K 0 part Annamalai> └─sdb5 8:21 0 1.8T 0 part Annamalai> ├─vgubuntu-root 253:0 0 1.8T 0 lvm / Annamalai> └─vgubuntu-swap_1 253:1 0 976M 0 lvm [SWAP] Annamalai> root@desktop02:~# Annamalai> Since both the VG is named as "vgubuntu", I am wondering how to identify Annamalai> the unused or unwanted VG. And I need to identify which hard disk (sda Annamalai> or sdb) I can remove. And what I need to do before unplugging it. Annamalai> I would appreciate if you people can point me in the right Annamalai> direction. Thank you. 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. Annamalai> _______________________________________________ Annamalai> linux-lvm mailing list Annamalai> linux-lvm@xxxxxxxxxx Annamalai> https://www.redhat.com/mailman/listinfo/linux-lvm Annamalai> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ _______________________________________________ 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/
