I have a confession to make… On Jun 2, 2018, at 6:09 AM, Thomas Schmitt <scdbac...@gmx.net> wrote:
> Rick Thomas reported that the boot process of > firmware-buster-DI-alpha2-amd64-DVD-1.iso > fails with > Incorrect CD-ROM detected > after it was re-partitioned to GPT. On the advice of another comment in this thread, I didn’t use firmware-buster-DI-alpha2-amd64-DVD-1.iso for those experiments. Instead, I used firmware-9.4.0-amd64-netinst.iso to avoid any possible alpha/testing anomalies. I neglected to say that in my earlier report. I’m sorry for any confusion it has caused! This afternoon, I plan to make a comprehensive set of tests: (a) “as-is” no messing with the partition tables at all; just dd directly to the USB stick. (b) an automatically gdisk-built GPT table deleting partition 1 and leaving partition 2 unmodified except for setting as type EF00. (c) an automatically gdisk-built GPT table based upon the original MBR table deleting partition 1 and leaving partition 2 unmodified except for setting as type EF00. (d) a hand-built (using disk) GPT table with partition 1 having the same start/end as the partition 2 had in the original GPT table and type EF00, and no partition 2. I plan to start with debian-9.4.0-amd64-netinst.iso because it’s the smallest (to minimizing time spend dd-ing) and has the fewest non-fully-supported features to confuse issues. In particular, this is not the firmware-9.4 I used above. I’ll report back as soon as I have some results. Thanks for all the help! Rick