Re: [gentoo-user] Kernel upgrade question: is it adviseable?
On Wednesday 03 June 2009 17:43:56 James Homuth wrote: I noticed yesterday gentoo-sources-2.6.29 was released, and was wondering if it's required that the kernel be upgraded no (I'm currently running 2.6.28. nothing wrong with that I did download the sources (Should I have done that?), yes, it doesn't hurt. Not required, but good to have but in the event it's not mandatory or anything to upgrade the kernel I'd really like to not have to recompile the thing. so don't. You only *have* to upgrade the kernel if you want some feature the current one in use does not support Related, however, if I do recompile it and decide to do so with genkernel, Yuck. I tell people to stay away from that thing. Just learn how to do it yourself. It's not hard, you get only what you want, and there are thousands of howtos all over the net will it respect the settings I've compiled into 2.6.28 or will they need to be reset again before 2.6.29 is compiled? No. Not unless you give it the old config to use. IIRC it has some feature to use the config for the currently running kernel (/proc/config.gz) if the running kernel supports it. But I could be may off course here too. thanks for any information on the subject. You'll get MUCH better answers by reading the kernel compile guide in the docs section of gentoo.org. Your post implies that you have not read it, as all your questions are answered in it. Knowledgeable folks here will give you the same answers, so just read the doc instead... -- alan dot mckinnon at gmail dot com
Re: [gentoo-user] Kernel upgrade question: is it adviseable?
Alan McKinnon wrote: On Wednesday 03 June 2009 17:43:56 James Homuth wrote: Related, however, if I do recompile it and decide to do so with genkernel, Yuck. I tell people to stay away from that thing. Just learn how to do it yourself. It's not hard, you get only what you want, and there are thousands of howtos all over the net I agree with this big time. Both parts. will it respect the settings I've compiled into 2.6.28 or will they need to be reset again before 2.6.29 is compiled? No. Not unless you give it the old config to use. IIRC it has some feature to use the config for the currently running kernel (/proc/config.gz) if the running kernel supports it. But I could be may off course here too. Why not copy the config from the old kernel over and run make oldconfig? May need to do some cleaning after genkernel tho. thanks for any information on the subject. You'll get MUCH better answers by reading the kernel compile guide in the docs section of gentoo.org. Your post implies that you have not read it, as all your questions are answered in it. Knowledgeable folks here will give you the same answers, so just read the doc instead... I would agree with Alan here. Learn to compile your own kernel. It is not nearly as bad as you may think. If you use grub, just save the old kernel you are using now. If the boot fails, reboot, edit the grub boot line and use the old kernel. Heck, I keep at least 2 working kernels here and during testing, I may have a dozen or more. Grub is wonderful when testing kernels. Curious to know a what to know which kernel is which, check this out: r...@smoker / # ls /boot/bzImage-2.6.2* -rw-r--r-- 1 root root 2460088 Jan 2 20:13 /boot/bzImage-2.6.23-r8-7 -rw-r--r-- 1 root root 2463768 Apr 16 17:10 /boot/bzImage-2.6.23-r8-8 -rw-r--r-- 1 root root 2347324 May 16 12:09 /boot/bzImage-2.6.25-r9-1 -rw-r--r-- 1 root root 2347356 May 18 07:59 /boot/bzImage-2.6.25-r9-2 -rw-r--r-- 1 root root 2352956 May 23 09:51 /boot/bzImage-2.6.25-r9-3 -rw-r--r-- 1 root root 2370876 May 27 11:01 /boot/bzImage-2.6.25-r9-4 r...@smoker / # I know what version the sources are and what local version I compiled, the number on the very end where each compile goes up one number. I been using Linux for years, notice it took me 4 tries to get my current kernel working. The last fix was USB, sort of missed the drivers for that. lol I still keep my old trusty 2.6.23. It took me 8 tries to get that one perfected. I say all that so you know you may not get it perfect the very first time. Hope that helps. Dale :-) :-)
Re: [gentoo-user] Kernel upgrade question: is it adviseable?
On Wednesday 03 June 2009 18:39:56 Dale wrote: will it respect the settings I've compiled into 2.6.28 or will they need to be reset again before 2.6.29 is compiled? No. Not unless you give it the old config to use. IIRC it has some feature to use the config for the currently running kernel (/proc/config.gz) if the running kernel supports it. But I could be may off course here too. Why not copy the config from the old kernel over and run make oldconfig? May need to do some cleaning after genkernel tho. That's the correct way :-) But the OP asked if there was some magic way to get genkernel to use the same config as #SOME_OTHER_KERNEL. Which of course makes no sense as there can be multiple versions and configs present. The small remaining part of me that is still mostly unaffected by the onset of senility seems to remember genkernel being able to do something expressed as: zcat /proc/config.gz /usr/src/linux/.config genkernel [] Which I suppose is a reasonable thing for an app like genkernel to do. But I could also just be imagining it. It happens :-) -- alan dot mckinnon at gmail dot com
Re: [gentoo-user] Kernel upgrade question: is it adviseable?
Alan McKinnon wrote: On Wednesday 03 June 2009 18:39:56 Dale wrote: Why not copy the config from the old kernel over and run make oldconfig? May need to do some cleaning after genkernel tho. That's the correct way :-) But the OP asked if there was some magic way to get genkernel to use the same config as #SOME_OTHER_KERNEL. Which of course makes no sense as there can be multiple versions and configs present. The small remaining part of me that is still mostly unaffected by the onset of senility seems to remember genkernel being able to do something expressed as: zcat /proc/config.gz /usr/src/linux/.config genkernel [] Which I suppose is a reasonable thing for an app like genkernel to do. But I could also just be imagining it. It happens :-) True, I did go a little off base. I did try genkernel once a long time ago. It included things for hardware I didn't have then omitted the driver for my IDE chipset, did include that slow as crap generic tho. Anyway, to me, genkernel is a waste of time. This is Gentoo, we want only what we need and not one bit more. Dale :-) :-)
Re: [gentoo-user] Kernel upgrade question: is it adviseable?
On (03/06/09 15:40) Dale wrote: Alan McKinnon wrote: On Wednesday 03 June 2009 18:39:56 Dale wrote: Why not copy the config from the old kernel over and run make oldconfig? May need to do some cleaning after genkernel tho. That's the correct way :-) But the OP asked if there was some magic way to get genkernel to use the same config as #SOME_OTHER_KERNEL. Which of course makes no sense as there can be multiple versions and configs present. The small remaining part of me that is still mostly unaffected by the onset of senility seems to remember genkernel being able to do something expressed as: zcat /proc/config.gz /usr/src/linux/.config genkernel [] Which I suppose is a reasonable thing for an app like genkernel to do. But I could also just be imagining it. It happens :-) True, I did go a little off base. I did try genkernel once a long time ago. It included things for hardware I didn't have then omitted the driver for my IDE chipset, did include that slow as crap generic tho. Anyway, to me, genkernel is a waste of time. This is Gentoo, we want only what we need and not one bit more. Dale :-) :-) Hi, genkernel uses a default config-file, check /usr/share/genkernel/arch/x86/kernel-config. i've backed it up, changing it to current .config. Works always (haven't used it recently though). HTH, Rumen
