Klaus-Peter Schrage composed on 2024-04-21 18:15 (UTC+0200):
...
It really doesn't take much to load a kernel and initrd. All my EFI PCs have
only one Grub installation, even though there are upwards of 12 distros
installed on each PC, no VMs. One of the latest updated hosts this:
menuentry "Fedora 40 defkernel 3 on P14" {
load_video
set gfxpayload=keep
search --no-floppy --set=root --hint-baremetal=ahci0,gpt14 --label
tg1p14f40 3
linux /boot/vmlinuz root=LABEL=tg1p14f40 noresume audit=0
initrd /boot/initrd
}
That stanza lives in nvme0n1p7's /boot/grub2/custom.cfg, which is 100% under my
own
control, and is automatically offered by the installed Grub's
/boot/grub2/grub.cfg.
That file is pointed to by /EFI/<distroid>/grubx64.efi on the ESP, as directed
by
NVRAM, which ATM has only 2 entries:
# efibootmgr
BootCurrent: 0000
Timeout: 1 seconds
BootOrder: 0000,0001
Boot0000* <distroid>
HD(1,GPT,<...>1b27,0x800,0xa0000)/File(\EFI\<distroid>\grubx64.efi)
Boot0001* UEFI OS
HD(1,GPT,<...>1b27,0x800,0xa0000)/File(\EFI\BOOT\BOOTX64.EFI)0000424f
#
Where you see <distroid> above is the actual value in /etc/default/grub's
GRUB_DISTRIBUTOR= on EXT4-formatted nvme0n1p7.
If you can correctly equate your installed values for those in my Grub stanza
above, you should be able to boot by typing in each of the necessary lines from
your grub> prompt to get booted.
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
--
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