Hi, I am used to installing Debian by PXE boot and serial console. For that purpose I'm familiar with editing the isolinux config files to have the kernel serial settings (console=ttyS… etc) in isolinux/txt.cfg.
Now for the first time I am trying to install a system that has a management controller that adds virtual media from ISOs, but I would still like to see that install over the IPMI serial. Currently when I add the Debian 12 netinst ISO as a virtual media it EFI boots grub, not isolinux, so the output of grub only goes to the graphical terminal (a web interface of the management controller in this case). I can then force the install to proceed over serial by editing the "Install" grub option and adding the familiar: --- console=ttyS1,115200n8 pn the end of the kernel line, and that works, so I am nearly there. I'd really like for this thing to by default boot grub in text mode on the serial console though. I guess I need to find the grub configuration that is in use from the ISO and add the usual serial --unit=1 --speed=115200 --word=8 --parity=no --stop=1 terminal_input serial terminal_output serial Should I just edit that into $iso_root/boot/grub/grub.cfg and repack the ISO? Is there any documentation page about this? Everything I found so far just covers the isolinux bit, which doesn't appear to be relevant here. Thanks, Andy