Is it possible to make an Ubuntu Live USB with memmap included?

Tomas Anderson

10/18/23, 7:39 PM

I have been reading many posts regarding people trying to edit their ubuntu Live usb stick and add specific changes. But so far i had no luck on how to make this fully work. What i am looking for, is to be able to add into the ubuntu live usb a "memmap" configuration:

From other posts that i have read, When the machine only accepts boot using UEFI (this is my case, i do NOT have have legacy in bios), i should be using Rufus to create the uefi bootable usb with the ubuntu image. And by doing that i can modify a file in the usb stick, /boot/grub/grub.cfg

That is what i did , i modified that file

From this:

  menuentry "Try or Install Ubuntu" {
set gfxpayload=keep
linux   /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash --- 
initrd  /casper/initrd

To this:

   menuentry "Try or Install Ubuntu" {
set gfxpayload=keep
linux   /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity memmap=8K\\\$0x00000005A00C000,4K\\\$0x00000005A00E000,8K\\\$0x00000005C00C000,4K\\\$0x00000005C00E000 quiet splash --- 
initrd  /casper/initrd

The result is that it did not work, when i inserted the usb stick on the machine and i hit enter on "try or install ubuntu", the screen just stays black forever. I wanted to know if what i am looking for is possible, or it is something that cannot be done? or am i doing it incorrectly?

thanks

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