22.04 create CDROM

[Jerry Geis]

Seems the command to re-do the CDROM on 22.04 is different than on 20.04

I found this:
https://askubuntu.com/questions/1403546/ubuntu-22-04-build-iso-both-mbr-and-efi

The command they say to run:
dd
if=/home/silentm/CDROM.iso/Ubuntu.22.04/ubuntu-22.04.3-live-server-amd64.iso
bs=512 skip=7129428 count=8496 of=/tmp/efi.img
dd:
‘/home/silentm/CDROM.iso/Ubuntu.22.04/ubuntu-22.04.3-live-server-amd64.iso’:
cannot skip to specified offset

Gives an error - cannot skip to offset.

Has anyone made a customer CDROM for 22.04 ? how ???

All I'm trying to do is change the grub menu.

Thank you

Jerry
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