I have the same problem on my ibook g4. It does boot to single user mode if I append "single" in grub. But otherwise it seems successful, but then I get a blank screen. I checked the Xorg.0.log and it looks normal. I also supplied a wireless firmware during installation (though I manually copied the b43 files into /lib/firmware), I wonder if that can somehow be related (seems unlikely). I haven't had time to look into it much yet. I also noted that grub will not boot mac OS.
Best, Ed On Fri, 24 Apr 2020 at 03:09, Doug Kiekow <do...@iphouse.com> wrote: > > Hi, and first off thanks for getting grub working. > > First attempt, with guided partitioning after install it failed to boot. > > Second attempt, same thing. So I booted into rescue off the cd, ran fdisk and > found no partitions on /dev/sda > > Third attempt, the installer asked for an additional file (it had asked for > firmware-misc-nonfree_20190717-2_all.deb previously) regulatory.db. The > closest I could come up with was wireless-regdb_2016.06.10-1_all.deb, which > seemed to make the installer happy. Then i partitioned the disk manually with > a 1Gb boot partition. Installation was successful, the system booted grub, > and started to boot Debian, then went into a black screen. I’ve tried editing > the esetparms with nomodeset, radeon.modeset=0, grub_gfxmode=1024x768x16, > vga=ask and setting the run level to 1, all with the same black screen result. > > Any help would be appreciated. > > PowerBook3,4 ATIMobility Radeon 7500