Re: boot/grub

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Jun 01, 2020 at 11:20:31AM +0200, Patrick Dupre wrote:
> with the -v option, I have
> BootCurrent: 0000
> Timeout: 1 seconds
> BootOrder: 0000,0002,0001
> Boot0000* fedora	HD(3,GPT,a5c3bc11-e83b-48d0-be96-783af37228f1,0x2001800,0xfa000)/File(\EFI\FEDORA\GRUBX64.EFI)
> [...]
> However, I do not understand how does this work with multi disks.
> We have
> /boot/efi/EFI/fedora/grubx64.efi
> on each disk ?
> Which does not seem to be the case.

If you see in the Fedora entry, it has:
HD(3,GPT,a5c3bc11-e83b-48d0-be96-783af37228f1,0x2001800\
,0xfa000)/File(\EFI\FEDORA\GRUBX64.EFI)

That means to look for a volume with the 3rd GPT partition, with the
UUID of a5c3bc11-e83b-48d0-be96-783af37228f1 (and some other data).
On that disk, look for the /EFI/FEDORA/GRUBX64.EFI executable
(remember, this is a DOS filesystem so it's case-insensitive).

Run 'blkid' on a running system, and you'll see that the PARTUUID of
the EFI volume matches the UUID in the above EFI entry.

You can have an EFI volume on multiple disks.  EFI also supports
things like network boot, which has a different syntax EFI entry.  The
efibootmgr command does a lot of the hard work of figuring that out
for you, so you don't need to manually enter that information.

-- 
Jonathan Billings <billings@xxxxxxxxxx>
_______________________________________________
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



[Index of Archives]     [Older Fedora Users]     [Fedora Announce]     [Fedora Package Announce]     [EPEL Announce]     [EPEL Devel]     [Fedora Magazine]     [Fedora Summer Coding]     [Fedora Laptop]     [Fedora Cloud]     [Fedora Advisory Board]     [Fedora Education]     [Fedora Security]     [Fedora Scitech]     [Fedora Robotics]     [Fedora Infrastructure]     [Fedora Websites]     [Anaconda Devel]     [Fedora Devel Java]     [Fedora Desktop]     [Fedora Fonts]     [Fedora Marketing]     [Fedora Management Tools]     [Fedora Mentors]     [Fedora Package Review]     [Fedora R Devel]     [Fedora PHP Devel]     [Kickstart]     [Fedora Music]     [Fedora Packaging]     [Fedora SELinux]     [Fedora Legal]     [Fedora Kernel]     [Fedora OCaml]     [Coolkey]     [Virtualization Tools]     [ET Management Tools]     [Yum Users]     [Yosemite News]     [Gnome Users]     [KDE Users]     [Fedora Art]     [Fedora Docs]     [Fedora Sparc]     [Libvirt Users]     [Fedora ARM]

  Powered by Linux