0

Failed boot Ubuntu 22.04 by Grub4DOS. The MENU.LST commands are

title Ubuntu 20 (64bit)
fallback 4
find --set-root /EFI/BOOT/UBT2004.ISO
map --read-only --heads=0 --sectors-per-track=0 /EFI/BOOT/UBT2004.ISO (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity iso-scan/filename=/EFI/BOOT/UBT2004.ISO quiet splash
initrd /casper/initrd

Ubuntu 18.04 boot OK.

title Ubuntu 18 (64bit)
fallback 3
find --set-root /EFI/BOOT/UBT1804.ISO
map --mem /EFI/BOOT/UBT1804.ISO (0xff) || map --heads=0 --sectors-per-track=0 /EFI/BOOT/UBT1804.ISO (0xff)
map --hook
root (0xff)
kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/EFI/BOOT/UBT1804.ISO splash
initrd /casper/initrd.lz

Please help to correct it. Thanks in advanced.

Nguyen Van Bai
  • 1
  • I thought grub4dos stopped development over 10 years ago, although used as a way to BIOS boot using Windows for a few years afterwards. Your example is 20.04 but comment is 22.04. Not an Ubuntu question so really off topic for AskUbuntu. You can use grub to boot ISO. https://askubuntu.com/questions/1380683/how-to-install-ubuntu-based-os-on-internal-hard-drive-without-a-flash-drive-usin https://askubuntu.com/questions/1025656/how-do-i-boot-an-iso-file-from-my-drive-using-grub2-on-uefi-machines & – oldfred Oct 14 '22 at 15:08

0 Answers0