Hi, i hate to put in question the benefit of my proposal, but:
Nicolas George wrote: > The firmware would never write in parts of the > drive that might contain data. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1056998 "cdrom: Installation media changes after booting it" Two occasions were shown in this bug where the EFI system partition of a Debian installation ISO on USB stick changed. One was caused by a Microsoft operating system, writing a file named WPSettings.dat. But the other was from Lenovo firmware writing /efi/Lenovo/BIOS/SelfHealing.fd . One may doubt that the success of these operations is desirable at all. The ISO was also tested with a not-anymore-writable DVD. In that case the Lenovo firmware did not raise protest over the fact that it was not possible to write to the EFI partition. Have a nice day :) Thomas