[Feature Request] [RoF] Ubuntu Desktop - Inclusion of mdadm for RAID

[Renzo de Paoli]

Hi Matthew.

My Request of Feature consists actually out of two parts:

1st step:  Include mdadm in the manifest.
 In https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/44609, workarounds are described based on mdadm.
 (The same applies to several tutorials and descriptions that can be found online.)

 Since mdadm is not part of Ubuntu Desktop, it needs to be downloaded first.
 Which is an issue, if one has no network connection.
 It also makes these tutorials quite a bit longer, because these extra steps on how to get mdadm need to be described.

 So just including mdadm makes life easier, without any major development effort.
 I guess that should be possible for 20.10 release?

2nd step: Enhance Ubiquity to handle RAID and LVM.
 You highlight the issue that there seems to be a lack of resources.
 So I understand that even if I would raise another bug, it would be unlikely to happen any time soon.

 Would it be possible to break down this feature into smaller work packages to reduce development & test effort?
 What could those be?

Thanks.

Best regards,
Renzo


On Monday, 27 April 2020 15:59:25 BST Matthew Paul Thomas wrote:
> Jeffrey Lane wrote on 22/04/2020 3:46 pm:
> >…
> > I can confirm that Ubiquity in Focal does not provide any means to
> > create a software RAID setup.
> > 
> > Moreover, while it at least has some LVM ability, it does not provide
> > the ability to create an LVM setup across multiple disks.
> >…
> 
> In June-July 2012, I designed how Ubiquity could present RAID and
> arbitrary LVMs. Unfortunately no-one has had time to implement either of
> those features yet.
> 
> RAID:
> <https://docs.google.com/document/d/1bZ4yQIVgGaUGSYu3qiUHnQt3ieBZoqunP_DcleHCr3I/edit#heading=h.1skv3m3qgmzf>
> 
> LVM:
> <https://docs.google.com/document/d/1bZ4yQIVgGaUGSYu3qiUHnQt3ieBZoqunP_DcleHCr3I/edit#heading=h.v8wi3omt1z0>
> 
> > Unfortunately, this is not going to happen for Focal it's WAY too late
> > to make feature requests, that should have been done early on in the
> > cycle.
> > Renzo  could you please file a bug against 'ubiquity' requesting this
> > support be added into the desktop installer?
> >…
> 
> Lack of RAID has been reported as a bug several times.
> <https://launchpad.net/bugs/44609>
> 
> And there are a few relevant bug reports for LVM.
> <https://launchpad.net/bugs/1060383>
> <https://launchpad.net/bugs/1302673>
> <https://launchpad.net/bugs/1667486>
> <https://launchpad.net/bugs/1668885>
> 
> -- 
> mpt
> 
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