[Bug 1864223] Re: shim 15+1552672080.a4a1fbe-0ubuntu1 fails to load fwupd

[Eugene Crosser]

I did not change any bios settings since upgrade from eoan, and firmware
update worked in eoan.

But I found something interesting.

In "normal life" my efi configuration looks like this:

BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0001,0019,001A,001B,001C,001D,001E,001F,0020,0021,0022,0023,0024,0002
Boot0001* ubuntu	HD(1,GPT,6ccce482-e2c2-48ca-991e-608bee5d38af,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
Boot0002* Linux-Firmware-Updater	HD(1,GPT,6ccce482-e2c2-48ca-991e-608bee5d38af,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)\.f.w.u.p.d.x.6.4...e.f.i...
Boot0010  Setup	FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011  Boot Menu	FvFile(126a762d-5758-4fca-8531-201a7f57f850)
Boot0012  Diagnostic Splash Screen	FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
...

Note that there is an entry for fwupdx64 number 0002.
After running fwupdmgr, configuration looks like this:

BootNext: 0000
BootCurrent: 0001
Timeout: 0 seconds
BootOrder: 0001,0019,001A,001B,001C,001D,001E,001F,0020,0021,0022,0023,0024,0002,0000
Boot0000* Linux-Firmware-Updater	HD(1,GPT,6ccce482-e2c2-48ca-991e-608bee5d38af,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)\.f.w.u.p.d.x.6.4...e.f.i...
Boot0001* ubuntu	HD(1,GPT,6ccce482-e2c2-48ca-991e-608bee5d38af,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)
Boot0002* Linux-Firmware-Updater	HD(1,GPT,6ccce482-e2c2-48ca-991e-608bee5d38af,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)\.f.w.u.p.d.x.6.4...e.f.i...
Boot0010  Setup	FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0011  Boot Menu	FvFile(126a762d-5758-4fca-8531-201a7f57f850)
Boot0012  Diagnostic Splash Screen	FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
...

Note that fwupdmgr added a new entry for Linux-Firmware-Updater number
0000, and set it for BootNext. So now there are two entries for Linux-
Firmware-Updater, that looks the same. After reboot, updater _did not_
run, and efi configuration returned to "normal" state.

After that, I set BootNext to 0002 by hand, and rebooted. And now,
firmware updater _worked_!

Another piece of information: replacing shim-signed actually _did_ make
a difference. I tried setting BootNext to 0002 with the previous focal
shim, and it did _not_ run updater. Now it does.

So maybe there is a second problem, with fwgupdmgr that sets a second
entry? Or there is another problem in the shim, that it does not honour
the second entry or entry number 0000 in efi configuration?...

Tell me if you need more information from me.

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https://bugs.launchpad.net/bugs/1864223

Title:
  shim  15+1552672080.a4a1fbe-0ubuntu1 fails to load fwupd

Status in OEM Priority Project:
  New
Status in shim package in Ubuntu:
  In Progress

Bug description:
  The latest shim upload does not seem able to load fwupd. Selecting
  fwupd in BIOS boot menu seems to go directly to grub.

  Probably not a signing issue of fwupd, as we don't get a security
  violation error. Need to investigate more.

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