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bug#47780: [installer] Trying to install to DVD leads to crash
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From: |
Ludovic Courtès |
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Subject: |
bug#47780: [installer] Trying to install to DVD leads to crash |
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Date: |
Sun, 20 Jun 2021 22:55:09 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) |
Hi,
Mathieu Othacehe <othacehe@gnu.org> skribis:
>> Does Parted provide a way to tell whether a storage device is read-only?
>> That would be ideal.
>
> Yes it does, but this is not enough for a reliable installation device
> detection. In Qemu the installation device is /dev/sr0 that is
> reported as read-only by parted.
>
> Using real hardware, and an installation device on an USB drive, the
> installation device is /dev/sd* and is not reported as read-only by
> parted.
I see.
> However, I found a better way to detect the installation device, that
> relies on reading the root partition UUID from the command line.
>
> I combined the read-only parted method and the UUID based installation
> device detection in e12be802e02b3345a753e7ec1287852a7337a0a5. This seems
> to work well for all my machines, plus for your VM use case.
That’s clever. Thanks!
Ludo’.