Just at mountpoints you should have mounted what you want to mount. It will automatically mount on startup.
Majordomo as well as LXC are 2 partitions running on my internal mSATA drive. In case of the RAID, you have to use the UUID of the RAID and NOT of the parition. If i remember correctly of my own NAS (not Omnia), it was the same. Using the UUID is unique and will not change. So if you type “blkid” if i am correct you will see the UUID of your RAID.
blkid:
> root@K-Router:/etc/config# blkid
/dev/mmcblk0p1: UUID="5a0c7fd9-f1cf-48f4-9812-0d6cfa15574f" UUID_SUB="0e81e00b-3676-43fa-b1b5-19500f0f105e" TYPE="btrfs" PARTUUID="b6b3faa0-01"
/dev/sda1: UUID="e9e630b9-00de-4e19-9661-fef45c1fdd94" UUID_SUB="7b511f96-1565-4b0d-b6c5-d7a3e3963e44" TYPE="btrfs" PARTUUID="12774218-01"
/dev/sda2: UUID="b3964b7b-cd45-4137-9624-49cf6e67b220" UUID_SUB="d56b8215-4a67-4e17-a4b9-5dcb05482a17" TYPE="btrfs" PARTUUID="12774218-02"
/dev/mmcblk0: PTUUID="b6b3faa0" PTTYPE="dos"
As you can see there is the UUID and the UUID_SUB. The UUID is of the harddrive itself, but the UUID_SUB is of the partition. Post your “blkid” result here to see what you are having as a result.
Here my fstab file.
config global
option anon_swap '0'
option anon_mount '0'
option auto_swap '1'
option auto_mount '1'
option delay_root '5'
option check_fs '0'
config mount
option target '/mnt/majordomo'
option enabled '1'
option uuid '7b511f96-1565-4b0d-b6c5-d7a3e3963e44'
option fstype 'btrfs'
config mount
option uuid 'd56b8215-4a67-4e17-a4b9-5dcb05482a17'
option target '/mnt/LXC'
option fstype 'btrfs'
option enabled '1'
config swap
option device '/dev/sda3'
option label 'swap'
option enabled '0'