
Looking at the disks in gparted I have: /dev/sda1 File system lvn2 pv Label UUID sI0LJX-JSme-W2Yt-rFiZ-bQcV-lwFN-tSetH5 Volume Group ubuntu-vg Members /dev/sda1 /dev/sdb1 Partition /dev/sda1 Name Flags boot/lvm /dev/sdb1 File system lvm2 pv Label UUID 9HV3H6-JIYu-IdaS-2CGr-lkZQ-9xcB-RVu9Ks Status Active Volume group /dev/sda1 /dev/sdb1 Logical Volumes root swap-1 Partition Path /dev/sdb1 Name Flags lvm /dev/sdc1 File system lvm2 pv Label UUID mqbYsB-xpm2-7c11-RLN5-q47a-A0bB-wcefad Status Not active(not a member of any volume group)Volume Group Members Logical Volumes Partition Path /dev/sdc1 Name Flags lvm My current fstab is this andrew@andrew-desktop:~$ cat /etc/fstab # /etc/fstab: static file system information. # # 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 andrew@andrew-desktop:~$ So /dev/sdb1 is part of a lvm group but /dev/sdc1 is not What command do I use to get these added to the fstab? I haven't consciously formatted either of the two new drives,is there a step I have missed? I haven't got the dollars for a M/B upgrade so I will purchase some more DDR3 Ram to get me to the limit of the motherboard, and I will purchase a SDD as recommended. It wouldf be nice to get thses disks running so that I can dump my data on to them and then add the SDD and do a fresh install using btrfs, which, I believe will give me an effective RAID 1 config. Many thanks Andrew