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Installed new kernel, system hangs

C

chuckywang

Lifer
I have Fedora Core 2 and I just downloaded the latest kernel. When I tried to boot up with that kernel, the system hangs during startup at the step "Checking for new hardware". Does anybody else have this problem and does anybody know how to fix it? Thanks!
 
Boot up the old kernel, and try turning off kudzu or whatever they use to check for new hardware. I don't think that's a kernel thing though, so I find it a bit strange.
 
yeah, that's what i'm thinking. In a related topic, how do I uninstall a kernel from Fedora? Do I just delete every file related to that kernel in /boot?
 
You can leave the new kernel. Just use the old one, unless your realy pressed for space.

The only thing that upgrading to a new kernel does is add those files to /boot, add a entry to grub.conf, add a /usr/lib/modules-* directory for that kernel's specific modules, and adds kernel headers/partial sources to /usr/src/linux-* (whatever is specific for that kernel).

If you are using a different kernel the newer one will have no impact on your OS aside from missing a few megs of space. All you have to do to make the old one default is edit your /boot/grub/grub.conf file to use the entry for your older kernel by default.

 
Yeah, I think i'll just leave it. Speaking of which, how is Fedora Core 3. I know it's still being tested, but is it complete enough that I can use it practically?
 
Why the OS freezes at hardware detection is usually related to a APM or ACPI bug.

What is happening is that your hardware is being probed by examining all the different IRQ/IO memory settings and the USB/Firefire stuff.

You can turn off APM and ACPI off by editiing your kernel line in your grub.conf..

Like if it was:

linux-blahblah something root=/dev/hda2 ro

You would go:
linux-blahblah something acpi=off apm=off root=/dev/hda2 ro

See if that helps.
 
It's at release canidate 2, so that means it will be sorta stable.

I could be something fun to play around with, but I wouldn't use it on any computer that I have too depend on it working...

Unless you realy realy want to, it'll probably give you a big headache. But if you want to get involved in a little beta testing and submit some bug reports and learn some new stuff it could be worth it.

If you want the latest and greatest, though, I'd probably just use Gentoo. It'll be more stable and have almost as new stuff.
 
Thanks for all your advice. I successfully disabled kudzu at system startup and now it boots fine. One last minor issue:

When I upgraded my kernel using the nice up2date gui that Fedora Core 2 came with, it installed version 2.6.8-1.521smp. This is kinda odd since I don't have a multiprocessor system. I then downloaded the rpm for 2.6.8-1.521 and tried to install that. However, it says that "package kernel-2.6.8-1.521 is already installed." I don't have that package, only the smp version of the kernel. Is there a way around this? Thanks.
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If your using a CPU that uses Hyperthreading, you'd need to use the SMP version... (I think....)

Otherwise if you need to have the rpm present all the rpm files would be aviable from Fedora's ftp mirrors...


Or go:

find / 2>/dev/null |grep kernel |grep .rpm
 
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