Hi Craig, I tried to follow the UUID process and I think it worked OK. andrew@andrew-desktop:~$ blkid /dev/sdb1: UUID= andrew@andrew-desktop:~$ blkid /dev/sda1: UUID="sI0LJX-JSme-W2Yt-rFiZ-bQcV-lwFN-tSetH5" TYPE="LVM2_member" PARTUUID="92e664e1-01" /dev/mapper/ubuntu--vg-root: UUID="b0738928-9c7a-4127-9f79-99f61a77f515" TYPE="ext4" /dev/loop0: TYPE="squashfs" /dev/loop1: TYPE="squashfs" /dev/loop2: TYPE="squashfs" /dev/loop3: TYPE="squashfs" /dev/loop4: TYPE="squashfs" /dev/loop5: TYPE="squashfs" /dev/loop6: TYPE="squashfs" /dev/loop7: TYPE="squashfs" /dev/loop8: TYPE="squashfs" /dev/loop9: TYPE="squashfs" /dev/loop10: TYPE="squashfs" /dev/loop11: TYPE="squashfs" /dev/loop12: TYPE="squashfs" /dev/loop13: TYPE="squashfs" /dev/loop14: TYPE="squashfs" /dev/loop15: TYPE="squashfs" /dev/loop16: TYPE="squashfs" /dev/loop17: TYPE="squashfs" /dev/loop18: TYPE="squashfs" /dev/loop19: TYPE="squashfs" /dev/loop20: TYPE="squashfs" /dev/loop21: TYPE="squashfs" /dev/loop22: TYPE="squashfs" /dev/loop23: TYPE="squashfs" /dev/loop24: TYPE="squashfs" /dev/loop25: TYPE="squashfs" /dev/loop26: TYPE="squashfs" /dev/loop27: TYPE="squashfs" /dev/loop28: TYPE="squashfs" /dev/loop29: TYPE="squashfs" /dev/loop30: TYPE="squashfs" /dev/loop31: TYPE="squashfs" /dev/loop32: TYPE="squashfs" /dev/loop33: TYPE="squashfs" /dev/loop34: TYPE="squashfs" /dev/loop35: TYPE="squashfs" /dev/mapper/ubuntu--vg-swap_1: UUID="2f34e0cb-eb8f-498a-ada4-7e786b7b9f2b" TYPE="swap" /dev/sdb1: UUID="9HV3H6-JIYu-IdaS-2CGr-lkZQ-9xcB-RVu9Ks" TYPE="LVM2_member" PARTUUID="c3e8f29f-01" /dev/sdc1: UUID="mqbYsB-xpm2-7c11-RLN5-q47a-A0bB-wcefad" TYPE="LVM2_member" PARTUUID="7325946b-01" /dev/sdd1: LABEL="EOS_DIGITAL" UUID="130D-103C" TYPE="vfat" andrew@andrew-desktop:~$ I haven't deliberately formatted the new disks yet, so can I choose btrfs for the two new 2Tb disks? And what will I use to format them, and having done that will the fstab get written to automatically? Thanks Andrew On 20/2/19 10:05 pm, Craig Sanders via luv-main wrote:
# Use 'blkid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices # that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> /dev/mapper/ubuntu--vg-root / ext4 errors=remount-ro 0 1 /dev/mapper/ubuntu--vg-swap_1 none swap sw 0 0