I have an older dual processor server with 4 Gig of memory that has been
running FC5 since it was released. I tried to upgraded to 7 Gig of
memory under FC5 but the system locked up in the init phase regardless
of what I did. I didn't chase the problem because I intended to upgrade
Recently I did upgrade the OS to F 7 and tried the changing the memory
to 7 Gig again. Using the standard i686 kernel, it boots and runs
correctly, but warns that only 4 Gig of memory will be used and that the
PAE kernel was necessary to use the full 7 Gig.
I installed the 184.108.40.206-65.fc7PAE kernel and the system boots
correctly, but stops at the init phase. The system is not locked up as
it will respond to C-A-Del and reboot. The output at the time of lock
up looks like this:
Switching to new root and running Init
Umounting old /dev
exec of init (/sbin/init) failed accessing a corrupted shared library
request_module: runaway loop modprobe binfmt-0397 (repeated 5 times)
I ran the memory test on the system for 8 hours or so and it found and
tested all 7 Gig. Also I have booted this system with M$ Advanced
server and it finds/uses all 7 Gig so I don't think there's anything
wrong with the hardware.
Rebooting with the original i686 kernel works correctly.
Any ideas or suggestions welcome.
Have you verified that your kernel supports that much memory? As I
recall, there's a 2GB (or possibly 4GB) cut-off for "vanilla" kernels and
if you want to run on a system with more memory than the cut-off allows,
you'll need to set the "really large memory" option in the kernel's
config file and then rebuild the kernel (or download the "large memory
kernel" rpm from you usual RPM supplier).
Hope this helps'idly,