This also applies to encrypted root using the following configuration
chosen during 11.10 setup:
- Partition disks - manual:
sda:
new partition table: yes
parititions sorted by position on disk:
partition 1 - 1GB, Name: <empty>, Use as: Reserved BIOS
boot area, Bootable flag: off
partition 2 - 4GB, Name: <empty>, Use as: Physical
Volume for raid, Bootable flag: off
partition 3 - remaining space (3TB), Name: <empty>, Use
as: Physical Volume for raid, Bootable flag: off
sdb:
new partition table: yes
parititions sorted by position on disk:
partition 1 - 1GB, Name: <empty>, Use as: Reserved BIOS
boot area, Bootable flag: off
partition 2 - 4GB, Name: <empty>, Use as: Physical
Volume for raid, Bootable flag: off
partition 3 - remaining space (3TB), Name: <empty>, Use
as: Physical Volume for raid, Bootable flag: off
sdc:
new partition table: yes
parititions sorted by position on disk:
partition 1 - 1GB, Name: <empty>, Use as: Reserved BIOS
boot area, Bootable flag: off
partition 2 - 4GB, Name: <empty>, Use as: Physical
Volume for raid, Bootable flag: off
partition 3 - remaining space (3TB), Name: <empty>, Use
as: Physical Volume for raid, Bootable flag: off
select "Configure software RAID":
Create MD device - RAID1, active devices: 3, spare devices: 0,
using the 4GB disks: sda2, sdb2, sdc2
Create MD device - RAID5, active devices: 3, spare devices: 0,
using the 3TB disks: sda3, sdb3, sdc3
back to partitioning menu, now configure the raid devices' usage:
under "RAID1 device #0 (4GB)" select part "#1 4.0GB":
use as: ext3, mount point: /boot, mount
options: noatime, label: none, reserved block: 5%, typical usage: standard
RAID5 device #1, configure "#1 6.0TB":
use as: physical volume for encryption,
encryption parameters - leave those at default
if you are no mathematician:
encryption method: device-mapper
(dm-crypt), encryption: aes, key size: 256, iv algorithm: cbc-essiv:sha256,
encryption key: passphrase, erasa data: NO if disks were randomized before, YES
otherwise
select "Configure encrypted volumes:"
select "Create encrypted volumes" - devices to encrypt:
/dev/md1
now select "Finish" and enter the passphrase when asked
back to the partitioning menu again:
NOW notice the follwing bug in the partitioner: the ext3 raid
device for "/boot" is NOT marked as being used for "/boot" anymore!
- correct its parameters, now you must also set "Format the
partition: yes" because it was formated before when we first configured it and
we want it to be clean.
under "Enccrypted volume (md1_crypt)" select part "#1 6.0TB":
use as: xfs, mount point: /, mount options: noatime,
label: none
finish partitioning and write changes to disk. boot the
system when the raid becomes degraded: yes. return to the partitioning
menu to create swap: no. write changes to disk: yes.
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https://bugs.launchpad.net/bugs/908387
Title:
Module aesni_intel not being loaded before mounting LVM2 stacked on
LUKS
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