On 2/28/24 08:54, karlderletzte wrote: > Am 27.02.24 um 22:41 schrieb Samuel Sieb: >> On 2/27/24 07:58, karlderletzte wrote: >>> two days ago, i installed fedora jam 39 on an external drive. This >>> runs successfully. >>> >>> BUT after restart and plug off the external drive Grub from my >>> internal drive does not show my fedora39 installation. >> >> You installed Fedora on the external drive, but you also have an >> installation on the internal drive? > Yes this is correct. If i plugin the drive, fedora jam is correctly > booting. When you installed to the external drive, it replaced the Fedora entry in the EFI boot list to point to that instead of the internal drive. Yes i understand that. But unconnected drive and running grub2-mkinstall i thought, that an Entry with my fedora 39 from infernal disk is generated. But it doesnt. >> What did you use to do the installation? >> i installed from live iso downloaded from fedora. selecting the >> external drive and partition. then automatic install. Works all. > Are you booting with the external drive connected or not? >> the problem is only, if i boot without the drive connected. > What options does the grub menu show? > 1. only system setup from the orginal recovery debian. this is a > normal entry. You have a Debian install on there as well? Yes this is because i bought the laptop without Windows. The Debian Entry just runs a Dokumentation of freedos, nothing else. > 2 boot UEFI File. this is also a normal entry. > > i use the second option and select the correct file. then fedora39 > starts correctly. Is this with the external drive connected or not? No without it. > it seems, that the recovery scripts from the different tutorials > (mostly in end grub2-mkinstall) are not recognizing the fedora39 > installation. i do not understand why. Go into the BIOS and check the boot list.  I'm wondering if you have a Debian entry that is being used.  You can also add another Fedora entry that points to the internal hard drive. Yes i have an Debian Entry and a Windows Bootmanager, but no fedora. Before installing fedora Jam i Bad three: Debian, Windows and fedora. And fedora was in the first place, so it starts from there. But how could i insert a New Entry? I think, the BIOS does not recognize the fedora one, or it is not there. If i can install the Boot loader for fedora, then it will work again. But how could i do that? t recognize the fedora one, or it is not there. If i can install the Boot loader for fedora, then it will work again. But how could i do that?