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From: Vagrant Cascadian <vagrant@debian.org>
To: Mathieu Othacehe <othacehe@gnu.org>
Cc: 44101@debbugs.gnu.org
Subject: bug#44101: Unable to use /dev/disk/by-id/ symlinks with u-boot and guix system reconfigure
Date: Fri, 23 Oct 2020 08:14:53 -0700	[thread overview]
Message-ID: <87ft65t1n6.fsf@ponder> (raw)
In-Reply-To: <875z71jr61.fsf@gnu.org>

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On 2020-10-23, Mathieu Othacehe wrote:
>> I don't quite understand why that would be the issue here; guix system
>> reconfigure works fine when /dev/mmcblkN is specified target in the
>> system config.scm, just not when the target is /dev/disk/by-id/...
>
> I don't think it works fine with /dev/mmcblkN. I think the bootloader
> configuration file is installed in /boot/extlinux/extlinux.conf when
> using /dev/mmcblkN or /dev/disk/, but the bootloader itself is actually
> never installed.

That does not match the behavior I observed; it definitely successfully
installs the bootloader when passing the raw device rather than a
symlink. Which I can only think of a small number of conditions that
would trigger that sort of behavior...

I'm fairly confident in this because I've been experimenting with two
incompatible u-boot bootloaders on the same boot media (one for
pinebook, and one for pinebook pro) and a successful installation
overwrites the bootloader, resulting in the expected machine booting,
and the other machine not booting. With a symlink it doesn't install to
the raw device at all...

That said, I'll move on to testing your next patch. :)


live well,
  vagrant

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      parent reply	other threads:[~2020-10-23 15:27 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-20 17:06 bug#44101: Unable to use /dev/disk/by-id/ symlinks with u-boot and guix system reconfigure Vagrant Cascadian
2020-10-22  7:58 ` Mathieu Othacehe
2020-10-22 20:08   ` Vagrant Cascadian
2020-10-22 23:12     ` Bengt Richter
2020-10-23  8:13     ` Mathieu Othacehe
2020-10-23  8:44       ` Mathieu Othacehe
2020-10-24  1:40         ` Vagrant Cascadian
2020-11-02 19:14           ` Vagrant Cascadian
2020-11-03  7:02             ` Mathieu Othacehe
2020-10-23 15:14       ` Vagrant Cascadian [this message]

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