Hi, so for now -partition_offset 16 is not to blame ?
The only tangible report was back in 2011 about a Macbook Pro https://lists.debian.org/debian-cd/2011/04/msg00029.html with decisive test in https://lists.debian.org/debian-cd/2011/04/msg00060.html and (deplorable) success report in https://lists.debian.org/debian-cd/2011/04/msg00061.html May i propose my personal favorite culprit for the next test here ? If so, then try what happens if at ISO production time the options -part_like_isohybrid -isohybrid-gpt-basdat are omitted in order to drop the invalid GPT of the ISO. Lengthy motivation is in: https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1895131/comments/22 Have a nice day :) Thomas -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1886148 Title: failure to boot groovy daily To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-cdimage/+bug/1886148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs