Hi Thomas, 1. There was a name error, wrong name of the input iso file - easy to understand and fix, but I asked before thinking twice. There was also an ownership/permission error, the file was owned by root and there were not enough permissions for the standard user (because I had copied it from my main computer to the test drive with Groovy persistent live, where I installed programs and ran commands according to your advice).
2. mkusb creates a GPT by default, when making a persistent live drive. This can be modified in the settings menu. The default is not to use usb-pack-efi, and it has not been necessary with previous versions of Ubuntu (including 20.04.x LTS), it has worked to use 'grub-install command lines' (in the script dus-persistent). After the big modification of the boot structure is has been necessary to use usb-pack-efi (selected in the settings menu) to make persistent live drives from Groovy iso files. I have not yet tested how mkusb can create persistent live drives with your modifications with the xorriso command line. 3. And yes, previous Ubuntu versions from when UEFI mode and cloning were established (I think around 12.10 or 13.04) it has worked to clone to USB drives, and these USB drives can boot both in BIOS and UEFI mode (including 20.04.x LTS and Groovy until the beginning of June and the big modification of the boot structure. 4. I am afraid, that there are several other new and fairly new Lenovo computers that are affected by this bug. 4.1 One of them is reported here by @RussianNeuroMancer in comment #151: Lenovo Yoga C630 WOS with arm architecture If I understand correctly, it can boot (in UEFI mode) from a USB drive with the content of the current Groovy iso file *extracted* to a FAT32 partition. -- 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/oem-priority/+bug/1886148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
