Control: severity -1 normal Hi Dima, Dima Kogan <dkogan@debian.org> (2023-03-29): > Hi. I just installed a bookworm candidate. This worked OK through > partitioning and reboot, but I cannot boot into the system. For the avoidance of doubt: which one? Alpha 1 or Alpha 2. Also, which image did you use? > This is an amd64 recent-ish laptop. The disk is a PCIe SSD, not SATA. You have not given a single detail about that machine. > I'm installing from a USB drive. To make this work, I had to turn off > secure-boot and UEFI in the BIOS. Why did you need that in the first place? How did you put the installation image onto that USB drive? > I believe that the result of this is the Debian partitioner defaulted > to an MBR partition, not a GPT partition. > > The BIOS of this laptop only allows booting from the PCIe SSD in UEFI > mode (so I need to change the BIOS setting before even trying). But > even after that, the machine doesn't let me boot off that disk. Some > searching tells me this is because GPT partitions are required for > UEFI booting, but Debian made an MBR partition. In a nutshell, BIOS means MBR, UEFI means GPT. (This is a very gross oversimplification though.) I'm not sure why the firmware would allow running an installer in BIOS mode and not boot off from the installed system… in BIOS mode too. Cheers, -- Cyril Brulebois (kibi@debian.org) <https://debamax.com/> D-I release manager -- Release team member -- Freelance Consultant
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