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Re: Thinkpad X13s boot loop after install



On Mon, Aug 11, 2025 at 11:21:57AM -0500, Michael Parson wrote:

> I've had this X13s for a while now, (...)

> 1) "Install additional packages"

> We're instructed to install:
>     - firmware-qcom-soc
>     - protection-domain-mapper
>     - qrtr-tools
>     - acpi

> The first one installs, but the other 3 error out as being
> unavailable packages.  OK, maybe they're not needed anymore?

They are very much needed, but not to boot I think. They enable stuff
like seeing the battery level, etc.

protection-domain-mapper is in the archive
https://packages.debian.org/search?keywords=protection-domain-mapper
not sure why you have problems with that.

Same for qrtr-tools
https://packages.debian.org/search?keywords=qrtr-tools
and acpi
https://packages.debian.org/search?keywords=acpi

Back when I made my install one also had to manually enable the
service that comes with qrtr-tools, not sure if with newer version it
is enabled by default. It is called qrtr-ns so something like
# systemctl enable qrtr-ns.service

> 2) Go back to main screen and Continue, which reboots, get the grub
> screen, tries to load the default and it reboots.

> I found a thread from May 2023 where someone else reported the same
> boot loop.

That someone is me.

> His solution:

>> Something had changed the "debian" EFI boot option to load directly
>> grubaa64.efi instead of DtbLoader.efi.

>> I added another boot option "Debian-LEM" that loads DtbLoader.efi

> Thing is, I can't get back into even the installer or recovery-mode
> from the installer image

That's not where you have to do that stuff. It happens in the
firmware's command line. I don't think the firmware's GUI
configuration allows to create/edit entries.

See chapter 4 of
https://docs.google.com/document/d/1WuxE-42ZeOkKAft5FuUk6C2fonkQ8sqNZ56ZmZ49hGI
for inspiration.


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