Hi, Thomas Schmitt wrote: > Maybe we can learn more by comparing the files /boot/grub/efi.img of the > original ISO and of an altered USB stick. > iso=/dev/sdX > and then > dd bs=512 if="$iso" of="$iso".esp skip=4476 count=18976 I tried doing that for the times the drive was modified, and they are here: https://drive.google.com/file/d/1Zd6iufVRsfIu-qzC-tJx4FEvCOESOz4_/view?usp=sharing Each modification was unique, so I put them all there. The files are for the 3 most recent attempts I did. G = gen, and the number after - is the attempt number. For the ones with no modifications, there's a text file with unmodified in its name which contains "unmodified" in it. unmodified.esp is the unmodified ESP in the installer.
However, I found some interesting results. I tried redoing the tests on each laptop, and found that the modifications occurred somewhat randomly. Laptop Model | Test 1 | Test 2 | Test 3 | Test 4 | Test 5 Lenovo Legion 7i gen 5 | modded | modded | modded | modded | modded Thinkpad X1 Carbon gen 2 | modded | modded |unmodded|unmodded|unmodded Thinkpad X1 Carbon gen 5 | modded | modded | modded |unmodded|unmodded Thinkpad E14 Gen 5 Intel | modded |unmodded|unmodded|unmodded|unmodded Thinkpad E14 Gen 5 Intel |unmodded|unmodded|unmodded|unmodded|unmodded Lenovo Yoga C740 |unmodded|unmodded|unmodded|unmodded|unmodded modded = modificationed It did show some patterns, however. Have an awe-inspiring day, Ram
