Aw: Re: From text mode to graphics mode

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Patrick DUPRÉ | | email: [email protected]
Laboratoire interdisciplinaire Carnot de Bourgogne
9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
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Sent: Monday, July 6, 2026 at 4:59 PM

From: "Francis Montagnac via users" <[email protected]>

To: [email protected]

CC: "Francis Montagnac" <[email protected]>

Subject: Re: From text mode to graphics mode

On Mon, 6 Jul 2026 12:37:58 +0000 Patrick Dupre via users <[email protected]> wrote:

> Right now, this machine that I used to launch in text mode and then
> startx is not accessible, because since I tried to bypass this step,
> I only get a dark screen, No response to CTL ALT fn. How could I
> make steps back? At least to see the messages?

At the grub prompt, edit the current entry, add 3 to the linux line,
then boot with Ctrl-x

Sure

This is typical what I should get

menuentry 'Fedora Linux 44 (Forty Four) (on /dev/sdc5)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/vmlinuz-7.0.12-201.fc44.x86_64--1ea2d462-244f-4959-9a62-99a7288aa38c' {
insmod part_gpt
insmod ext2
set root='hd2,gpt4'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt4 --hint-efi=hd2,gpt4 --hint-baremetal=ahci2,gpt4 3159367f-91c1-4a04-a484-6778058618ef
else
search --no-floppy --fs-uuid --set=root 3159367f-91c1-4a04-a484-6778058618ef
fi
linux /vmlinuz-7.0.12-201.fc44.x86_64 root=/dev/sdc5 rd.md=0 rd.lvm=0 rd.dm=0 SYSFONT=True KEYTABLE=fr-latin9 rd.luks=0 LANG=en_US.UTF-8
initrd /initramfs-7.0.12-201.fc44.x86_64.img
}

Where to I add 3 ? rd.dm=3 ?

(this is equivalent of adding systemd.unit=multi-user.target)

That will start in text mode (aka: multi-user.target).

Once this is done, look at the journal for error/warning messages
related to gdm in the previous (failed / graphical) boot.

There has been some reports about that symptom after an upgrade of
fedora, in particular:

GDM crashes after upgrade to Fedora 43 due to authselect migration
https://discussion.fedoraproject.org/t/gdm-crashes-after-upgrade-to-fedora-43-due-to-authselect-migration/171961

--
francis
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