Am 14.02.25 um 20:43 schrieb Matej Marko:
Hello, I have actually on SSD SATA installed these distributions: Linux Mint, Ubuntu Desktop, Kubuntu, Lubuntu, KDE neon, Fyde OS. All actuall version. Screenshots are from KDE neon. Command sudo update-grub not work correct for me. It finds only Ubuntu Desktop, no other distributions. All screenshots are here https://imgur.com/a/crvLj26 <https://imgur.com/a/crvLj26>
The last distribution you have installed has done grub-install. So sudo update-grub within this distribution will work. All sudo update-grub from the other distribution will not have any impact on the grub menue. So I suppose the last installed distribution does not find the other ones. What I would do if I were in this situation: run rescue from Ubuntu and do a chroot to get in Ubuntu. Then run grub-install and see if the other distribution were found. But the problem remains if that works: Only update-grub from last distribution which did grub-install will have impact. So if you get a new kernel from updates of one of the other distribution this change will not get in the grub menue. I do not know if there is a clean solution for this problem. My solution for this situation was to have one disk for only one distribution and having several USB-HDDs to run several different distributions. Rolf