On Mon, Jan 24, 2022 at 11:55:20AM +0100, deloptes wrote: > Thank you for the response > > David Christensen wrote: > > > I have a computer with an Intel DQ67SW desktop motherboard (released Q1, > > 2011). The Setup utility allows me to select BIOS/MBR mode or UEFI/GPT > > mode. d-i seems to detect if the computer is running in BIOS/MBR mode > > or in UEFI/GPT mode, and performs an install to match. So, I installed > > Debian twice (via textual "Install") onto a pair of USB sticks, once in > > each mode. (An "Expert" installation may offer more options.) > > Ah 2011 seems right to match the one that refer to here. > I can boot from the CD/DVD into UEFI, but it seems I can not do the same > from the USB. > The USB which is UEFI can boot the newer notebook (has secure mode) > > > > > I mostly run my computers in BIOS/MBR mode, and use the BIOS/MBR USB > > stick frequently. > > > > > > I have limited experience with the UEFI/GPT USB stick. I need to test > > it on a newer computer with Secure Boot, and may need to create a third > > USB stick. > > > > > > AIUI d-i and Debian Live are open-source projects. I believe they both > > support all of the above in a single image. If you have the skills, > > perhaps you could fork one and create your own image with the tools you > > want. > > The question is if it is not limited by the board. If I disable Legacy USB I > can not use the keyboard/mouse and I have to reset the bios. > > But even in Legacy mode I see in boot options UEFI USB disk, however it does > not boot, but same stick boots on the more recent notebook. > > Does someone knows more about it. What and where to check? I would not spend > time if it is the boards BIOS. I'll just keep a copy of the DVD/CD as > rescue > > thanks > > -- > FCD6 3719 0FFB F1BF 38EA 4727 5348 5F1F DCFE BCB0 >
Hi deloptes, It depends very much on the machine. I've just saved a machine that has 32 bit UEFI implementation and a 64 bit Atom processor. It's an Intel Baytrail with a small amount of memory [2G] but required the Debian multi-arch .iso to boot. A later model of the same series - Lenovo Ideapad - does support 64 bit UEFI and UEFI processor. Which machine do you have and what's the processor? All the very best Andy Cater Which machine, which processor.
