[Bug 1922342] Re: Impish live session takes ages to boot on BIOS systems

[Chris Guiver]

Thomas Schmitt in #104

>...> motion computing j3400
> This one is possibly allowed to be somewhat slow.

>From me (comment #76)
> ((or 3 mins 30 secs for `hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)`

The time for lubuntu kinetic actually beat a comparison time of one of
an old hp.dc7700 I use heaps in QA-testing.

> This prompts another test request @ Chris Guiver:
> Does it help to remove MBR partition 2 similarly to what i proposed a year ago to José Marinho and what helped to boot:

I performed the command

`sudo dd if=/dev/zero bs=1 count=16 of=/dev/sdb conv=notrunc seek=462`

to Ubuntu Desktop 22.04 LTS thumb-drive (K)

Booted on j3400

(note: times for BOOT1 will be ~3-8 secs slower than reported due my-
error operating phone-stopwatch)

BOOT1: 
(I won't give times as I can't be sure which are which)
00:18, 00:27, 01:57, 02:18, 02:45
HOWEVER either way it was fully-operational at 2 min 45 secs (or 3-8 secs after that anyway)

system just rebooted  (alt-sysreq+reisub)

BOOT2:
00:25  screen clears & message(s)
00:28  plymouth seen
02:17  maybe-ubiquity; try/install selection  (I may have been a tad slow here in selecting try)
02:41  (i forget sorry)
03:11  system fully-operational

Maybe my [estimated] 3-8 secs is inaccurate; but I'd suggest it was
similar.

FYI:  If you need more testing; just ask  (or I miss anything I was
asked)..  I'll boot the thumb-drive on a few boxes to confirm no issues
with the

I'll go & boot the thumb-drive on some boxes to ensure it's usable
elsewhere..  I'll edit this and add boxes it was tested on (I'm not
expecting any issues)

It booted successfully on
- hp 8200 elite sff (i5-2400, 8gb, nvidia quadro 600)

BUT FAILED TO BOOT on
- hp dc7700 (c2d-e6320, 5gb, nvidia quadro nvs 290)

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https://bugs.launchpad.net/bugs/1922342

Title:
  Impish live session takes ages to boot on BIOS systems

Status in Release Notes for Ubuntu:
  Fix Committed
Status in casper package in Ubuntu:
  Confirmed
Status in casper source package in Impish:
  Confirmed
Status in casper source package in Kinetic:
  Confirmed

Bug description:
  First of all, I change the description of this bug because, thanks to
  Chris Guiver comments, I could check that the live session effectively
  works but it takes too long to complete. That's why I change the
  description of the bug from live session does not boot to live session
  takes ages to boot. I hope this is the best approach to this.

  I think the problem is the same as described here:
  https://discourse.ubuntubudgie.org/t/20-10-grub-error-can-t-find-
  command-grub-platform/4292. I can see prior to grub menu, briefly, the
  same error: Error can't find grub_platform. After the solution
  described below, this error is not showed and the system is able to
  boot.

  I try making the live usb using startup disk creator and with gnome-
  disks --> Restore disk image and get the same results.

  The live-usb has a gpt partition table instead of mbr like 20.04 live-
  usb has. That implies, I think, that the first one does not boot on
  BIOS systems and the second does.

  I try the same live-usb on an EFI laptop and it boots perfectly
  (perhaps it takes long time, but more less than in this case.

  If I try the solution described here:
  https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1905491/comments/8
  then it works.

  ProblemType: Bug
  DistroRelease: Ubuntu 21.04
  Package: casper 1.461
  ProcVersionSignature: Ubuntu 5.11.0-13.14-generic 5.11.7
  Uname: Linux 5.11.0-13-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu61
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.461
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr  2 09:55:24 2021
  LiveMediaBuild: Ubuntu 21.04 "Hirsute Hippo" - Beta amd64 (20210331.1)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=gl_ES.UTF-8
   SHELL=/bin/bash
  SourcePackage: casper
  UpgradeStatus: No upgrade log present (probably fresh install)

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