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chainload grub4dos from grub2 to boot cdrom/dvr?

Posted: Sun Feb 20, 2022 12:42 am
by Lassar

Been doing some research, and found out that grub4dos will
boot a cdrom/dvr.

So how does one chainload the grub4dos from grub2?

Would you give me an example that shows how to
do boot a cdrom/dvr indirectly from grub2.


Re: chainload grub4dos from grub2 to boot cdrom/dvr?

Posted: Sun Feb 20, 2022 1:41 am
by Phoenix

I believe this should solve your problem: https://ubuntuforums.org/showthread.php?t=1668939
What it does is keep grub2, places grub4dos and then creates a menu entry to boot grub4dos.


Re: chainload grub4dos from grub2 to boot cdrom/dvr?

Posted: Wed Feb 23, 2022 6:37 pm
by Lassar

Will grub4dos still work on modern computers?

Grub4dos Is a 16 bit program, is it not?

If I am right, then modern bios don't support 16 bit programs.

Unless you can use QEMU emulator to use grub4dos.


Re: chainload grub4dos from grub2 to boot cdrom/dvr?

Posted: Thu Feb 24, 2022 2:24 am
by Phoenix

Grub4dos works just fine on my notebook before I changed to grub2. In fact it works just fine on all 64bit computers that I know of.


Re: chainload grub4dos from grub2 to boot cdrom/dvr?

Posted: Thu Feb 24, 2022 4:01 am
by JASpup

I had a similar question for reverse, i.e., I want to boot Xenial and later splash screens from G4D: viewtopic.php?p=41519#p41519

On a newer 64 there's G2C: viewtopic.php?t=3360&start=110