Hi,
I wondered about this as there are docs about it and it is not like "everybody
complains".
Docs:
- https://help.ubuntu.com/lts/serverguide/advanced-installation.html
- https://help.ubuntu.com/community/Installation/SoftwareRAID
I tested that with a virtual guest for that I set up 3x20GB Disks.
I wanted to configure them the following way:
Partitions on Each
p1 = 1G
p2 = 19G
The small ones for boot on raid 1 (remember boot can only be raid 1, not
5,6,...) as outlined in the links above.
disk1p1 - raid 1 boot
disk2p1 - raid 1 boot
disk3p1 - swap
The bigger part in a raid 5
disk1p2 - raid 5 /
disk2p2 - raid 5 /
disk3p2 - raid 5 /
Following the guides linked above with the described target in mind (to
prove that not only the most default setup works) I ended up in the
installer with this view:
RAID1 device #0 - 998.7 MB Software RAID device
998.7 MB f ext4 /boot
RAID5 device #1 - 40.9 GB Software RAID device
40.9 GB f ext4 /
SCSI1 (0,0,0) (sda) - 21.5 GB ATA QEMU HARDDISK
#1 primary 999.3 MB B K raid
#2 primary 20.5 GB K raid
SCSI2 (0,0,0) (sdb) - 21.5 GB ATA QEMU HARDDISK
#1 primary 999.3 MB B K raid
#2 primary 20.5 GB K raid
SCSI2 (0,1,0) (sdc) - 21.5 GB ATA QEMU HARDDISK
#1 primary 999.3 MB F swap swap
#2 primary 20.5 GB K raid
>From there I let the installer finish his work and it was booting and
running right into the raid devices as it should.
So I wonder what exactly is the issue that is left these days with
Ubuntu 16.04?
** Changed in: grub-installer (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1315344
Title:
Grub install failed on disks with software RAID
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