Thanks a lot! In my case I loaded from Live USB Fedora and used the command:
efibootmgr -v -c -L Qubes -l /EFI/qubes/xen.efi -d /dev/nvme0n1p1 вторник, 22 сентября 2020 г. в 03:20:37 UTC+3, awokd: > load...@gmail.com: > > Hi everyone, need any help, because I am stuck. > > > > Today I got my External SSD and *I installed the 2-nd Qubes OS* on this > > Drive (the first one was been installed on my internal Laptop drive. > > > > But to my surprise, when I *tried to load my first Qubes OS*, I > couldn't. > > In BIOS my drive is visible like working device, but *in Boot Menu it > does > > not exist anymore*. > > Search this mailing list for "efibootmgr"- you should find an example > command on how to recreate your Qubes EFI boot menu entry. > > -- > - don't top post > Mailing list etiquette: > - trim quoted reply to only relevant portions > - when possible, copy and paste text instead of screenshots > -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/4bbc1b86-ff32-41e8-ab16-43c9d3773740n%40googlegroups.com.