I can confirm this bug! I installed the latest build of 9.10 on my external Disk.
But I can boot into Ubuntu, if I replug the drive at the BusyBox Prompt and the type exit.
After adding rootdelay=90 it boots after a while, see my dmesg snapshot of this time.
My Board is a Gigabyte G31M-S2L. I think this is a kernel Bug since Grub2 loads fine...
I can confirm this bug!
I installed the latest build of 9.10 on my external Disk.
But I can boot into Ubuntu, if I replug the drive at the BusyBox Prompt and the type exit.
After adding rootdelay=90 it boots after a while, see my dmesg snapshot of this time.
My Board is a Gigabyte G31M-S2L.
I think this is a kernel Bug since Grub2 loads fine...