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dunhill_
Asked: 2018-08-15 06:00:46 +0800 CST

Use grub4dos to boot ubuntu 18.04

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I am using grub4dos 0.4.4 to boot Ubuntu 17.04 successfully. Here are lines in the file MENU.LST

title Ubuntu 17 (64bit)

fallback 6

find --set-root /iso/ubt1704.iso

map --mem /iso/ubt1704.iso (0xff) || map --heads=0 --sectors-per-track=0 /iso/ubt1704.iso (0xff)

map --hook

root (0xff)

kernel /casper/vmlinuz.efi  file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/iso/ubt1704.iso splash

initrd /casper/initrd.lz

But for Ubuntu 18.04, they did not work. The computer restarted after menu Ubuntu 18.04 was selected.

Please help me to fix the problem. Thanks in advanced.

Update on 15-Aug-2018.

I have changed the content of MENU.LST as bellow and it worked.

find --set-root /iso/ubt1804.iso

map --mem /iso/ubt1804.iso (0xff) || map --heads=0 --sectors-per-track=0 /iso/ubt1804.iso (0xff)

map --hook

root (0xff)

kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/iso/ubt1804.iso splash

initrd /casper/initrd.lz
18.04 grub4dos

1 Answers

  1. Using grub4dos to boot Ubuntu Ubuntu 18.04 ISO disk image, here is the entry for the file MENU.LST:

    title Ubuntu 18
  fallback 6
  find --set-root /iso/ubt1804.iso
  map --heads=0 --sectors-per-track=0 /iso/ubt1804.iso (0xff)
  map --hook
  root (0xff)
  kernel /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper iso-scan/filename=/iso/ubt1804.iso splash
initrd /casper/initrd.lz

    NB,

    • For Ubuntu 64bit from 14.04 to 17.10 vmlinuz.efi was used, so kernel has to be /casper/vmlinuz.efi, but
    • For older versions and 18.04+ use /casper/vmlinuz
    • For Ubuntu 32bit, it has always been vmlinuz
    • For smaller ISO disk images, or your RAM is extremely big, you can use --mem for the map command to put the whole disk into system memory, like this:
      map --mem /iso/smallcd.iso (0xff) || map --heads=0 --sectors-per-track=0 /iso/smallcd.iso (0xff)

    Ref: here

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