Mint 21 Vanessa Install unnecessarily insists on EFI partiton

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nichot20
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Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by nichot20 »

I have a system that upgraded happily from Uma to Vanessa, but thern I decided I wanted to do a clean install while preserving my separate /home partition.
However, when selecting a custom install to avoid /home being trashed, which the "replace" option said would happen, and selecting the current / partition for the install together with the mount point for /home, without re-formatting that partition, I was warned that no EFI partition was found so the install would fail and be unbootable.

Since the system already booted happily without using EFI why should this be. I can understand EFI being a default option but since non EFI booting clearly worked, why was this not an option in the absence of an EFI boot partition?
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by AndyMH »

It's a bug and as you found you can safely ignore it. The installer, ubiquity, seems to be getting more hostile to legacy boot. In LM20 all options bar 'something else' create an un-needed EFI partition and put everything else in an extended partition, now in LM21 it warns that your system may not boot when with legacy boot an EFI partition is a waste of space. At this rate, I wouldn't be surprised if LM22 when it arrives no longer supports legacy boot.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by nichot20 »

TVM for that. It begs the question as to how well an upgrade from 21->22 will perform.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by linux-rox »

Sufficient unto the day is the evil thereof. FWIW, I don't think Ubuntu will drop BIOS altogether until it's no longer supported by the kernel. That said, the bug is really sloppy programming. Makes me wonder what else they messed up that's not quite so obvious.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by mike_0284 »

nichot20 wrote:
Sat Dec 10, 2022 4:06 pm
TVM for that. It begs the question as to how well an upgrade from 21->22 will perform.
...and in the larger sense, the future appears to be distro/hardware combinations that prohibit legacy boot entirely.

One of the attractions of Linux, IMHO, has been "works on old hardware", and I'd hate to see that 'pass away'.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by motoryzen »

I wonder if Clem and the rest of the team will eventually ditch the ubitquity installer and go to calamares or something else
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by rene »

motoryzen wrote:
Mon Jan 02, 2023 12:49 pm
I wonder if Clem and the rest of the team will eventually ditch the ubitquity installer and go to calamares or something else
Hope not. Have been distro-hopping a bit and e.g. RAID is just not a thing for Calamares. It's incredibly poor-featured. At a level even that I find it by and large useless.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by frank392 »

Ubiquity installer is great, it just needs to be made simpler for new users.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by AndyMH »

frank392 wrote:
Mon Jan 02, 2023 6:12 pm
Ubiquity installer is great, it just needs to be made simpler for new users.
It's more important that they fix the bugs, particularly the UEFI bug when installing dual boot on a second drive. While only a small % of users it is significant. Legacy boot is also a diminishing % of users, but insisting on an EFI partition... words fail me.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by motoryzen »

frank - How much more simple should it get? No insulting vibes meant, just curious as to what things you would change about it.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by rene »

motoryzen wrote:
Mon Jan 02, 2023 6:52 pm
No insulting vibes meant [ ... ]
... but if you insist, feel free to obtain the insulting vibes from me then.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by AndyMH »

Rene, what timezone are you in? Saw an earlier post around 0800Z saying you were going to bed, needed sleep?
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by rene »

I'm on NST (Nerd Standard Time). And, yes, I since edited that one back to leave slightly less nonsense lying about...
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by nichot20 »

A (possibly unconnected) update. Having got Vanessa installed and functioning fine along came Vera (21.1) So I performed a system upgrade and all was fine.

Then my system suffered a hiccup after a power outage requiring resorting to TimeShift. So dig out a Live USB of Vera. This fails to complete the boot process hanging on a blank screen [Function] n shows the expected tty's but no GUI was reached. This happened repeatedly so resort to a Vanessa Live USB. This was fine and enabled me to use TImeShift. Unfortunately, possibly due to HD issues the result was unbootable with a grub error about a missing variable. I'm still working on that one.

What I find very odd though is that Vera ran quite happily on my machine as an upgrade from Vanessa, but the Live USB won't boot on the same machine. Not sure how to solve that one.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by linux-rox »

Just a hunch, but that sounds like a burn error creating the Vera installation medium. Confirm the ISO's checksum, then try burning it again.

By the way, be aware. When Timeshift does a restore, it by default reinstalls and updates Grub. The defaults can be overridden (click the Bootloader Options button) and I usually do, unless I'm specifically trying to recover from a boot problem.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by nichot20 »

I did a checksum verify and got the same result from both an Etcher burn to USB and the verified ISO running on Ventoy. Separately downloaded and verified images as well.

Because I had partition Inode issues I did a full reformat and fsck on the partition and was effectively restoring to a different partition (Ididn't preserve the UUID) so needed the grub re-install. I'm wondering if there is a grub version issue between Vanessa and Vera.
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Re: Mint 21 Vanessa Install unnecessarily insists on EFI partiton

Post by linux-rox »

nichot20 wrote:
Tue Jan 24, 2023 2:31 pm
I'm wondering if there is a grub version issue between Vanessa and Vera.
There were a couple of updates, but pretty minor as far as I can tell. The last year's worth of changelog for grub-pc:

Code: Select all

grub2 (2.06-2ubuntu7.1) jammy; urgency=medium

  * grub-multi-install: Reset partition type between partitions (LP: #1997795)

 -- Julian Andres Klode <juliank@ubuntu.com>  Fri, 02 Dec 2022 16:18:47 +0100

grub2 (2.06-2ubuntu7) jammy; urgency=medium

  [ Heinrich Schuchardt ]
  * Disable LOAD FILE2 protocol for initrd on ARM (LP: #1967562)

 -- dann frazier <dannf@ubuntu.com>  Fri, 15 Apr 2022 15:50:11 -0600

grub2 (2.06-2ubuntu6) jammy; urgency=medium

  [ Heinrich Schuchardt ]
  * efivar: check that efivarfs is writeable (LP: #1965288)

  [ Dimitri John Ledkov ]
  * Do not validate kernels twice. (LP: #1964943)

  [ Heinrich Schuchardt ]
  * efi: EFI Device Tree Fixup Protocol (LP: #1965796)
  * fdt: add debug output to devicetree command

 -- Julian Andres Klode <juliank@ubuntu.com>  Fri, 25 Mar 2022 16:03:11 +0100

grub2 (2.06-2ubuntu5) jammy; urgency=medium

  [ Julian Andres Klode ]
  * Free correct size when freeing params, rather than 16 Ki (LP: #1958623)
  * Build with FUSE3 (LP: #1935659)
  * Only run os-prober on first run and if it previously found other OS
    (LP: #1955109)

  [ Heinrich Schuchardt ]
  * Rename grub-core/loader/efi/linux.c
  * Add patches for GRUB on RISC-V
  * fat: fix listing the root directory
  * Enable building for RISC-V (LP: #1876620)

  [ Julian Andres Klode ]
  * Re-enable peimage code on other archs outside secure boot; this
    fixes LP: #1947046 when not booting in secure boot mode (secure
    boot pending security review of the code)

 -- Julian Andres Klode <juliank@ubuntu.com>  Fri, 18 Feb 2022 17:21:16 +0100

grub2 (2.06-2ubuntu4) jammy; urgency=medium

  * UBUNTU: Move verifiers after decompressors (LP: #1954683)
  * grub-check-signatures: Support gzip compressed kernels (LP: #1954683)

 -- Julian Andres Klode <juliank@ubuntu.com>  Mon, 10 Jan 2022 14:52:04 +0100
One of the frustrating things about Grub is how many things have to mesh for it to work correctly. If you're not able to figure it out, you should start a new thread, as it's unlikely many people are following this one. Be sure to include system information with the first post.
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