leyvi
n00b
Joined: 08 Sep 2023
Posts: 65
Location: Israel
|
 Posted: Sat Apr 27, 2024 5:24 pm Post subject: GRUB out-of-memory issues when booting from an image file |
 |
|
I am trying to make a single USB drive that can boot into a live environment from several distros (including Gentoo), so that I can help my friends and family install it (or at least try it out).
I am using grub-mkrescue (see this documentation) to accomplish this. But when I toss the image file it produces into a VM and select one of the menu options, I get "error: out of memory.".
This is strange, since my VM has 16 GiB of RAM allocated, and the largest image I have is smaller than 4 GiB.
I've heard somewhere that GRUB is limited to a certain amount of RAM by default (typically less than the total system RAM), and if so, how do I change that?
I couldn't find any documentation on the subject...
Also, here's my grub.cfg: | Code: |
set isoimage=""
set bootloaderpath=""
# Boot the selected OS!
function bootiso {
loopback isofs $isoimage
chainloader (isofs)$bootloaderpath
}
# For booting Arch 2024.04.01:
menuentry "ArchLinux 2024.04.01" {
set isoimage="/distros/archlinux-x86_64.iso"
set bootloaderpath="/EFI/BOOT/BOOTx64.EFI"
bootiso
}
# For booting Debian 12.5:
menuentry "Debian 12.5 (KDE)" {
set isoimage="/distros/debian-live-12.5.0-amd64-kde.iso"
set bootloaderpath="/EFI/boot/grubx64.efi"
bootiso
}
# For booting Fedora 39:
menuentry "Fedora 39 (GNOME)" {
set isoimage="/distros/Fedora-Workstation-Live-x86_64-39-1.5.iso"
set bootloaderpath="/EFI/BOOT/grubx64.efi"
bootiso
}
# For booting Gentoo:
menuentry "Gentoo AMD64" {
set isoimage="/distros/install-amd64-minimal-Gentoo.iso"
set bootloaderpath="/efi/boot/bootx64.efi"
bootiso
}
# For booting Linux Mint 21.3:
menuentry "Linux Mint 21.3 (Cinnamon)" {
set isoimage="/distros/linuxmint-21.3-cinnamon-64bit.iso"
set bootloaderpath="/EFI/boot/grubx64.efi"
bootiso
}
|
Note that I wrote this myself, and that I have little experience working directly with GRUB. |
|
Kernel & Hardware
