Thank for the feedback, Thus, I am going to summarize the situation. I updated a fedora 38 installation to 40 (on sdc3) as I used to do. But this installation is now not visible from the grub bot menu. I run grub2-mkconfig -o /boot/grub2/grub.cfg again, and again from both installation (40 and 38 on sda4). The output seems OK (Fedora 40 found from fedora 38, and fedora 38 found from fedora 40). os-prober OK cf /dev/sdc3:Fedora Linux 40 (Forty):Fedora1:linux (from fedora 38) The only way to start fedora 40 is to boot from super grub2 If I understand UEFI does not see the fedora 40 installation It looks that the information from grub2-mkconfig are never made available to the grub boot > -- > _______________________________________________ > users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx > Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue > -- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
