I have a machine with a two HDDs configured in Windows 10 for RAID 1, which I would like to mount from Ubuntu 20.04.
I can see the drives with lsblk
~$ lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 9.1M 1 loop /snap/canonical-livepatch/95 loop1 7:1 0 96.6M 1 loop /snap/core/9804 loop2 7:2 0 29.9M 1 loop /snap/snapd/8790 loop3 7:3 0 62.1M 1 loop /snap/gtk-common-themes/1506 loop4 7:4 0 49.8M 1 loop /snap/snap-store/467 loop5 7:5 0 29.9M 1 loop /snap/snapd/8542 loop6 7:6 0 255.6M 1 loop /snap/gnome-3-34-1804/36 loop7 7:7 0 55.3M 1 loop /snap/core18/1885 loop8 7:8 0 2.2M 1 loop /snap/gnome-system-monitor/148 sda 8:0 0 3.7T 0 disk └─isw_ecghdfaggh_Volume0 253:0 0 1.7T 0 dmraid ├─isw_ecghdfaggh_Volume0p1 253:1 0 260M 0 part └─isw_ecghdfaggh_Volume0p2 253:2 0 16M 0 part sdb 8:16 0 3.7T 0 disk └─isw_ecghdfaggh_Volume0 253:0 0 1.7T 0 dmraid ├─isw_ecghdfaggh_Volume0p1 253:1 0 260M 0 part └─isw_ecghdfaggh_Volume0p2 253:2 0 16M 0 part sr0 11:0 1 1024M 0 rom nvme0n1 259:0 0 953.9G 0 disk ├─nvme0n1p1 259:1 0 600M 0 part ├─nvme0n1p2 259:2 0 512M 0 part /boot/efi ├─nvme0n1p3 259:3 0 128M 0 part ├─nvme0n1p4 259:4 0 171.1G 0 part ├─nvme0n1p5 259:5 0 28G 0 part / ├─nvme0n1p6 259:6 0 59.6G 0 part [SWAP] └─nvme0n1p7 259:7 0 694G 0 part /home They are the drives named sda and sdb.
dmraid claims the RAID is already active.
~$ sudo dmraid -ay RAID set "isw_ecghdfaggh_Volume0" already active But it is apparently not mounted. If I try to mount it, I get an error:
~$ sudo mount /dev/mapper/isw_ecghdfaggh_Volume0 /media/Data/ mount: /media/Data: /dev/mapper/isw_ecghdfaggh_Volume0 already mounted or mount point busy. I can't find the UUID of the drive either:
~$ sudo blkid /dev/nvme0n1p6: UUID="c35ec8d6-80b7-4bb3-ac58-9ccc809d16fb" TYPE="swap" PARTUUID="275c9c53-9c57-4ce5-b930-32de7dc90e38" /dev/nvme0n1p5: UUID="9fdf9d51-2097-4e8a-8501-f4610814298e" TYPE="ext4" PARTUUID="b1c9cac5-e6bc-40c8-84eb-a2fe7a672818" /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/nvme0n1p1: LABEL="Windows RE Tools" UUID="DEFE58EDFE58C007" TYPE="ntfs" PARTLABEL="Basic data partition" PARTUUID="61787626-5405-4c40-b9c3-2bb9f8994677" /dev/nvme0n1p2: UUID="3A5A-C39D" TYPE="vfat" PARTLABEL="EFI system partition" PARTUUID="51005fd5-0b5e-4378-8f7b-f43121df3391" /dev/nvme0n1p4: TYPE="BitLocker" PARTLABEL="Basic data partition" PARTUUID="76c0c0e7-05b2-49d0-900e-82aa378dc33a" /dev/nvme0n1p7: UUID="bce2e697-df65-4a1d-9187-d9bf153b588c" TYPE="ext4" PARTUUID="3df059fe-01d4-4a50-b8fb-31ba260e0e82" /dev/sda: TYPE="isw_raid_member" /dev/sdb: TYPE="isw_raid_member" /dev/mapper/isw_ecghdfaggh_Volume0p1: LABEL="SYSTEM" UUID="A843-B42E" TYPE="vfat" /dev/loop8: TYPE="squashfs" /dev/nvme0n1p3: PARTLABEL="Microsoft reserved partition" PARTUUID="5417e899-32d3-418a-93bc-ebfc7cb4ee5b" /dev/mapper/isw_ecghdfaggh_Volume0: PTTYPE="PMBR" Can you help me mount the drive, or point me in the right direction.
1 Answer
I found a solution. sudo mdadm --examine /dev/sda /dev/sdb gave me the UUID of the raid. I edited that into /etc/fstab and rebooted Ubuntu.
Now the RAID is mounted and I can share files between the two OS'es.
