> On Jul 2, 2024, at 19:31, Mike Wright <nob...@nospam.hostisimo.com> wrote: > > On 7/2/24 07:44, Frank Bures wrote: >> Hi, >> I was wondering if it was possible to boot the existing F40 installation >> from a USB. I tried to research this but everything I was able to find >> dealt with booting a live image of F40 from USB and/or installing a live >> image of F40 on a USB. >> What I want is to create a USB stick with /boot and /boot/efi fs in such a >> way that it boots an existing F40 installation on a HD. >> I am not talking about rescuing the system from a live Fedora USB. I am >> talking about a fully automatic boot of an existing installed Fedora from a >> USB. >> Is it possible and what would it involve? > > I found this article; it is 8 years old and mostly covers MBR boot but there > is one efi boot example. > > https://unix.stackexchange.com/questions/252936/grub2-boot-to-a-second-another-hard-disk > > -- > > This one looks interesting. Harddrives are hdX starting at 0. Add a > menuentry to your usb grub.cfg > > > menuentry "Boot from second disk" { > chainloader (hd1)+1 > } > > but changed to this: > > menuentry "Boot from first harddisk" { > chainloader (hd0)+1 > } > > Give it a try and see what happens.
That won’t work for UEFI, you’d need to give a path to a UEFI executable on hdX. I believe you’d edit: /etc/grub.d/40_custom to add that to the final grub.cfg. -- Jonathan Billings -- _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org 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@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
