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vivi131313
Tux's lil' helper
Joined: 11 May 2004
Posts: 108
Location: Folsom, CA
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 Posted: Tue May 18, 2004 10:56 pm Post subject: Grub won't load my kernal |
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When i select the kernal i want to boot in grub, it comes back to the same screen. Not sure what to pu ton here to be helpful.
I'm using 2.6.6 kernal with smp.
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moocha
Watchman
Joined: 21 Oct 2003
Posts: 5722
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| Posted: Tue May 18, 2004 11:08 pm Post subject: |
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Posting your grub.conf file might actually enable someone to help you.
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hitman200ca
Tux's lil' helper
Joined: 02 Oct 2002
Posts: 110
Location: Canada
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| Posted: Wed May 19, 2004 4:39 am Post subject: |
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If you don't have multiple processors or a P4 with HyperThreading then the SMP
kernel will not boot on your system. Try compiling a kernel without SMP to
see if you can boot then.
Also definatly post your grub.conf from /boot (if you followed the guide fully)
To get at it you will probably have to boot the live CD again and follow the
guide until you are in your chrooted environment. Then you can make
changes to your configuration.
Good Luck :o)
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moocha
Watchman
Joined: 21 Oct 2003
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| Posted: Wed May 19, 2004 6:46 am Post subject: |
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| hitman200ca wrote: | If you don't have multiple processors or a P4 with HyperThreading then the SMP
kernel will not boot on your system. |
Wrong.
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hitman200ca
Tux's lil' helper
Joined: 02 Oct 2002
Posts: 110
Location: Canada
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| Posted: Wed May 19, 2004 4:46 pm Post subject: |
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| moocha wrote: | | hitman200ca wrote: | If you don't have multiple processors or a P4 with HyperThreading then the SMP
kernel will not boot on your system. |
Wrong. |
Ok then, I stand corrected. In what cases is this possible?
Do you have to do something to allow an SMP kernel to boot
on a non MP machine?
I recall trying an SMP kernel (by accident) back in Gentoo1.4
on my AMD K7 machine with absolutely no luck. Once the SMP
kernel option was turned off (recompiled kernel) everything worked again.
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moocha
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Joined: 21 Oct 2003
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| Posted: Wed May 19, 2004 4:58 pm Post subject: |
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Nope, it Just Works - provided that the kernel isn't compiled for an entirely different architecture, of course.
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hitman200ca
Tux's lil' helper
Joined: 02 Oct 2002
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Location: Canada
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| Posted: Wed May 19, 2004 5:13 pm Post subject: |
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Hmm, interesting. Chances are that my problem kernel was compiled
for the wrong architecture since it was all default settings.
Are there any benefits or problems created when using and SMP kernel
on an non-MP machine? Slower? Faster? better/worse process handling?
Just curious.
Thanks :o)
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sobers_2002
Veteran
Joined: 16 Mar 2004
Posts: 1128
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| Posted: Wed May 19, 2004 5:25 pm Post subject: |
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| well once in redhat i had smp kernel and it just worked fine |
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nixnut
Bodhisattva
Joined: 09 Apr 2004
Posts: 10974
Location: the dutch mountains
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| Posted: Wed May 19, 2004 6:01 pm Post subject: |
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| hitman200ca wrote: | Are there any benefits or problems created when using and SMP kernel
on an non-MP machine? Slower? Faster? better/worse process handling? |
It won't be faster, but I don't think it will be much if any slower. It will take up a bit more memory, but memory is cheap these days.
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moocha
Watchman
Joined: 21 Oct 2003
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| Posted: Wed May 19, 2004 7:02 pm Post subject: |
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| hitman200ca wrote: | Are there any benefits or problems created when using and SMP kernel
on an non-MP machine? Slower? Faster? better/worse process handling? |
Marginally slower, and you might run into problems with some binary-only modules (but only if you're not careful which one you pick).
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Installing Gentoo
