Hi Michael,
I am checking internally if we have any way to tell bootable 1.2
metadata or not.
but all Dell PowerEdge systems are boot supported with 1.2 metadata. we can
filter with this for dell.
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You are correct that subiquity does not allow you to put the ESP on a
metadata 1.2 MD RAID device. That's because, to the best of my
knowledge, almost all firmware does not know about MD RAID formats and
so would be unable to boot the system.
The question thus becomes, how can the installer know t
Also, we feel even after subiquity allows mdraid-disk installations, we
might be hitting
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1776685 here as
well. So we need to work on that as well to get a complete working
solution.
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I believe the code changes has to go to these files:
https://github.com/canonical/subiquity/blob/main/subiquity/common/filesystem/boot.py
and
https://github.com/canonical/subiquity/blob/main/subiquity/common/filesystem/actions.py
Currently it allows only imsm containers and hence our md-raid 1.2 d
>So the UEFI system is able to read mdraid 1.2 too, and can access ESPs
inside of it?
Yes, currently install & boot with mdraid 1.2 works for other OS like
CentOS etc.
Ubuntu subiquity installer seems to be blocking it for ESP/Boot-device.
Ubuntu legacy debian installer was allowing md-raid disk
This is very unfortunate. So the UEFI system is able to read mdraid 1.2
too, and can access ESPs inside of it?
Most systems do not implement linux's mdraid in their firmware, and
hence putting the ESP inside the RAID would lead to unbootable systems;
which is why we designed the solution where you
** Attachment added: "Files inside /var/log from one of the daily builds of
22.04"
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1961079/+attachment/5561526/+files/log.tar.gz
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Description of the feature request:
The DellEMC PowerEdge RAID Controller(PERC) S130/S140 is RAID solution
for the DellEMC PowerEdge systems configured through Chipset SATA
controller. It does not use any dedicated Hardware for RAID operations.
It is set up/configured by the system BIOS. Using the
** Attachment added: "partitions of md-raid disk also cannot be chosen as boot
disk - no such option listed in subiquity"
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1961079/+attachment/5561525/+files/ubuntu-3.PNG
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** Attachment added: "Cannot choose md-raid disk as Boot disk - no such option
listed for the disk"
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1961079/+attachment/5561524/+files/ubuntu-2.PNG
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Steps:
1. Setup a DellEMC 14G PE server with 2 Onboard SATA disks.
2. Setup a md-raid (RAID1) on these SATA disks through BIOS S140 controller in
UEFI mode.
3. Start installing Ubuntu 22.04
4. See that user cannot select md-raid disk as boot disk. Installation on
md-raid disk cannot proceed.
**
** Also affects: subiquity (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1961079
Title:
[Ubuntu 22.04] Allow ESP installation on md-disks in subi
Our BIOS uses mdadm and creates md-raid disks (RAID-1) with metadata 1.2
through Dell SW-RAID solution like S140/S150 etc inside BIOS.
We support install and boot from these md-raid disks.
https://raid.wiki.kernel.org/index.php/A_guide_to_mdadm
https://dl.dell.com/topicspdf/s150-users-guide_en-u
** Changed in: grub2 (Ubuntu Jammy)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1961079
Title:
[Ubuntu 22.04] Allow ESP installation on md-disks in subiquity
To m
So I see the linked bug about raid.
Can you clarify for me what md-disk refers to in this context? Search
results are pointing me to MiniDisk and Markdown and those are obviously
not correct.
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This bug is an updated version of an older issue.
https://bugs.launchpad.net/bugs/1466150
** Also affects: grub2 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Also affects: grub2 (Ubuntu Focal)
Importance: Undecided
Status: New
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