It seems unlikely that a bug initially filed in October 2006 can have as
its sole cause a regression in the 9.04 kernel!
In your case, it's probably just that installing the new kernel image
package happened to put the kernel files above the BIOS limit. I expect
that a workaround would be to create a small /boot partition at the
start of your disk. (Unfortunately the installer has a hard time knowing
when this is going to be the case.)
It seems unlikely that a bug initially filed in October 2006 can have as
its sole cause a regression in the 9.04 kernel!
In your case, it's probably just that installing the new kernel image
package happened to put the kernel files above the BIOS limit. I expect
that a workaround would be to create a small /boot partition at the
start of your disk. (Unfortunately the installer has a hard time knowing
when this is going to be the case.)