Ubuntu 16.04, UEFI and software RAID 1

Tue Aug 20 01:15:42 UTC 2019

On Mon, 12 Aug 2019, 20:29 Leroy Tennison, <leroy at datavoiceint.com> wrote:

> Thanks for your reply - that's what I was afraid of.  It would sure be
> nice if there was a supported solution because drive sizes are going to
> push us to EFI eventually.
>

So, the way to solve that is with EFI drivers. Similar to
https://efi.akeo.ie/

It's unlikely that vendors would ship those out of the box however.

Harriscomputer
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> ------------------------------
> *From:* Scott Moser <smoser at ubuntu.com>
> *Sent:* Monday, August 12, 2019 11:27:34 AM
> *To:* Leroy Tennison <leroy at datavoiceint.com>
> *Cc:* ubuntu-server at lists.ubuntu.com <ubuntu-server at lists.ubuntu.com>
> *Subject:* [EXTERNAL] Re: Ubuntu 16.04, UEFI and software RAID 1
>
> I've looked at this before.  To my knowledge, there is not a really good
> solution.
> Kees Cook described the problem and some options
> https://outflux.net/blog/archives/2018/04/19/uefi-booting-and-raid1/
> <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2foutflux.net%2fblog%2farchives%2f2018%2f04%2f19%2fuefi-booting-and-raid1%2f&c=E,1,sPdCxbKO2HDHcP-bbk3EN6JdQpX7jMXnERXONXkjVW9gcqIJsy_rQpwDrCLOO088DKzFTvST0I8MGFArmP6CMG1P0zulW3nKESbdQuRU&typo=1>
> .
>
> It'd be nice if there was a supported "right way" to do this.
>
> On Sat, Aug 10, 2019 at 9:47 PM Leroy Tennison <leroy at datavoiceint.com>
> wrote:
>
> I have tried unsuccessfully so far to set up software RAID 1 while
> installing 16.04 or 18.04.  I was able to get install to finish a 16.04
> install by manually creating a EFI partition during the process but the
> system won't boot (HP DL380 Gen 10).  In doing research I'm seeing that the
> EFI specification doesn't address mirroring.  However, references were in
> the Ubuntu 12.04 era.
>
>
> Is this still true?  Can I have both EFI boot and RAID 1 for the EFI
> partition?
>
>
> If the install is successful are there things I can check/correct to get a
> successful boot?
>
>
> This is being set up for a customer at a remote site, is it even advisable
> to do RAID 1 on UEFI or is it best to do legacy BIOS for support reasons.
>
>
> Thanks for your help.
>
> Harriscomputer
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>
> *Register now for the dataVoice User Conference, October 9-11 at the
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>
>
> *Leroy Tennison *Network Information/Cyber Security Specialist
> E: leroy at datavoiceint.com
>
>
> 2220 Bush Dr
> McKinney, Texas
> 75070
> www.datavoiceint.com <http://www..com>
>
> This message has been sent on behalf of a company that is part of the
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