To be clear, I have no problem booting Windows and other ISO files with
grub2. I've been creating grub2 menus for years. The problem reported
only occurs with the 25.10 ISO boot.
menuentry ' Windows ' {
search -f /EFI/Windows/bootx64.efi --set=root
chainloader /EFI/Windows/bootx64.efi
}
menuentry " Porteus 5.01 ISO - AF'" --class slackware --class user-
icon-porteus {
set bootparms="volume=33 reboot=cold extramod=$linux_folder/Modules \
noload=kde;jinn;lxqt;xfce;lxde;mate;open;dat.xzm;menu2"
search -f $iso --set=root
loopback loop $iso
linux (loop)/boot/syslinux/vmlinuz from=$iso $bootparms
initrd (loop)/boot/syslinux/initrd.xz
}
menuentry " Porteus 5.1 alpha3 ISO - AF" --class slackware --class
user-icon-porteus {
set linux_folder=/porteus5.1
set iso="/ISOs/Porteus/Porteus-CINNAMON-v5.1-alpha-x86_64.iso"
set iso="/ISOs/Porteus/Porteus-CINNAMON-v5.1-alpha2-x86_64.iso"
set iso="/ISOs/Porteus/Porteus-CINNAMON-v5.1-alpha3-x86_64.iso"
# set iso="/ISOs/Porteus/Porteus-CINNAMON-v5.1-alpha3-251011.iso"
# set iso="/ISOs/Porteus/Porteus-OPENBOX-v5.1-alpha3-x86_64.iso"
set bootparms="volume=33 reboot=cold noload=-test;myc;My;50save;Dell \
extramod=$linux_folder/Modules "
search -f $iso --set=root
if [ "$root" == "hdX0,gpt4" ]; then
set bootparms="volume=33 reboot=cold noload=-test;myc;My;save;Dell /
extramod=$linux_folder/Modules "
fi
loopback loop $iso
linux (loop)/boot/syslinux/vmlinuz from=$iso $bootparms # debug
initrd (loop)/boot/syslinux/initrd.xz
}
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https://bugs.launchpad.net/bugs/2141060
Title:
25.10 doesn't support booting ubuntu isos
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/2141060/+subscriptions
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