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Bug#1024346: cdrom: debian-11.5.0-amd64-netinst.iso boots to Grub CLI on Dell Optiplex 5090

On Sun, Nov 20, 2022 at 02:59:10AM +0000, r@tekhax.io wrote:
>Thanks for the detailed message. I started everything over to try to reproduce the problem.

Thanks for that!

>I wiped out the NVMe drive again (wipefs -a and dd if=/dev/zero
>of=/dev/sdb bs=512 count=100000), and re-installed Pop!OS 22.04
>non-NVidia version, which was successful. The computer was operating
>normally and booting into Pop!OS, no problem.

OK, cool.

>I then downloaded a new Debian 11.5.0 netinst ISO, checked the
>SHA512, wrote it to the USB drive with extra parameters mentioned
>I powered off the computer, inserted the USB 3.0 stick into a USB 3.0
>port and powered on. I hit F12 to reach the Dell one-time boot menu
>and chose the USB stick to boot from.
>It immediately boots into the Grub CLI as I described before. So
>either the presence of the Pop!OS partition or the presence of the
>entry in the UEFI boot table seems to be confusing the Debian USB


By pure lucky coincidence, yesterday another Debian developer saw a
very similar issue on a Lenovo machine (see bug #1024720), and we
debugged his problem together. I'm thinking that you may have another
instance here. Could you please check for me: does the Pop!OS
installation include a file in the path "/.disk/info" on any of its

If so, that will be the cause of the problem here. If so, if you
(temporarily) rename that file then you should find that the Debian
installer will work just fine.

Steve McIntyre, Cambridge, UK.                                steve@einval.com
"...In the UNIX world, people tend to interpret `non-technical user'
 as meaning someone who's only ever written one device driver." -- Daniel Pead

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