Can't install 11.2 64 bit on an AMD 64 4000+ machine?

English Install/Boot/Login
1

Downloaded the 64bit 11.2 iso, burned to DVD, booted up
and get the error message:

“kernel requires an x86_64 cpu, but only detected an i686 cpu
unable to boot - please use a kernel appropriate for your cpu”

What’s up with that?

@ren:~> dmesg | grep -i proc
0.000000] Checking if this processor honours
the WP bit even in supervisor mode…Ok.
0.000000] Detected 2411.583 MHz processor.
0.081629] CPU0: AMD Athlon™ 64 Processor 4000+
stepping 0a
0.084001] Total of 1 processors activated
(4823.16 BogoMIPS).
2.494343] processor LNXCPU:00: registered
as cooling_device0
10.711992] powernow-k8: Found 1 AMD
Athlon™ 64 Processor 4000+ processors
(1 cpu cores) (version 2.20.00)

@ren:~> cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 7
model name : AMD Athlon™ 64 Processor 4000+
stepping : 10
cpu MHz : 1000.000
cache size : 1024 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr syscall nx mmxext lm 3dnowext 3dnow up
bogomips : 2009.65
clflush size : 64
power management: ts fid vid ttp

2

It may sound funny to you, but I’ve seen this happen with a faulty CD and DVD. Please check the downloaded iso and the burnt media.

3

You’d think I’d learn by now :slight_smile:

I downloaded the ISO to my MacBook Pro and used Disk Utility
to burn the image to DVD. Just before that, though, I ran
an md5 against the ISO to be sure the ISO was good - it is.

So I run Disk Utility to burn the image and the last step
of a Disk Utility burn is “Verifying” (after writing the image
to DVD), which I had ASSUMED that means, “I’m running
an md5 on the DVD and compare the checksum to the md5 I
ran on the ISO”. I assumed that because I see constant
access to the DVD.

My assumption must be in error - I just did an md5sum against
/dev/sr0 (DVD) and the checksum doesn’t match. Maybe OSX is
retaliating that I’m wanting to burn a Linux ISO :slight_smile:

So, I’ll scp the ISO to this Linux desktop and burn it here.

Thanks for the reminder to do a md5 on the DVD!

4

I’ve re-burned the DVD and have done an md5 on the DVD
and it checks out (i have 2 DVDs that check out and dont work).

I still get the same error.

5

As it turns out … I went in to the BIOS and selected, “Load Optimized Default”,
rebooted and “voila”, boots up.

I’m still curious why some 64-bit distros worked and some didn’t.

Oh well, onward through the fog …