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Kasumi_Ninja
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 Posted: Thu Jun 19, 2008 3:43 pm Post subject: |
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| sall wrote: | so, I'm guessing theres a chance I can hose my system if I do this?  |
No not really, and you can always back your kernel files in /boot.
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ecosta
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| Posted: Thu Jun 19, 2008 4:37 pm Post subject: |
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The simplest is probably to create a new entry in grub and point to a new kernel so that if it fails, you can just go to your original grub entry and boot.
Was that clear?
So, in short.
- Upgrade to the kernel version that is the same from the one on the live CD.
- compile the .config file after unziping it!
Don't forget to change the 'linux' link to point to the new kernel.
- Add a new entry in grub to avoid problems and for easy roleback to previous version/kernel.
Best of luck!
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sall
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| Posted: Thu Jun 19, 2008 5:21 pm Post subject: |
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okay, so this is a really novice question  my harddrives mount on /dev/hda which one would /mnt/gentoo be located on. I have grub, swap, and root partitions. However I can't find the /mnt/gentoo anywhere |
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ecosta
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| Posted: Thu Jun 19, 2008 5:31 pm Post subject: |
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Hmmm, you might have been better off starting with a simpler distro like (k)ubuntu.
OK, when you run fdisk -l it should show you your disk and it's partition and partition type (ext3, swap, ...). You could of course simply look at /etc/fstab to see what is mounted where.
So in short, when you have the info, boot on the liveCD, mount your root filesystem (/) to anyplace.
If your root filesystem is say /dev/hda2, you could just do:
| Code: |
# mkdir /mnt/mymount
# mount /dev/hda2 /mnt/mymount
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Then copy the config file to /usr/src, unmount the mounted filesystem, reeboot to your system and do all the work from there.
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Kasumi_Ninja
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| Posted: Thu Jun 19, 2008 5:43 pm Post subject: |
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| sall wrote: | | okay, so this is a really novice question my harddrives mount on /dev/hda which one would /mnt/gentoo be located on. I have grub, swap, and root partitions. However I can't find the /mnt/gentoo anywhere |
How did you install Gentoo? With the handbook?
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sall
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| Posted: Thu Jun 19, 2008 6:28 pm Post subject: |
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| yes, I installed gentoo from the handbook. |
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Kasumi_Ninja
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| Posted: Thu Jun 19, 2008 6:42 pm Post subject: |
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| sall wrote: | | yes, I installed gentoo from the handbook. |
Ok, you have to mount the partition on which you downloaded and extracted the stage3 (thus your root or '/' partition).
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sall
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| Posted: Thu Jun 19, 2008 7:55 pm Post subject: |
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alright,
| Code: |
V2570nr craig # su
V2570nr craig # mount /dev/hda3 /mnt/gentoo
mount: mount point /mnt/gentoo does not exist
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I do not think I am doing anything wrong? Feel slow today and watching euro cup game. Let me know what I am doing wrong. |
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ecosta
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| Posted: Thu Jun 19, 2008 8:24 pm Post subject: |
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Hi,
Your installation is over and thus /mnt/gentoo no longer exists. Just mount it to any available mount point under /mnt or just create one as I mentioned above.
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sall
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| Posted: Thu Jun 19, 2008 9:29 pm Post subject: |
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| I can't get to cp to any directory. I can't access my /dev/hda or my / partitions from the rescue cd. weird. Can you give me a command to save the /proc/config.gz to my /home/craig directory and then i can install from there. Also, could I just download the same kernel to match the rescue cd and that would be the same thing? |
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sall
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| Posted: Fri Jun 20, 2008 4:16 pm Post subject: |
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| ..bump...anyone? |
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Kasumi_Ninja
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| Posted: Fri Jun 20, 2008 4:50 pm Post subject: |
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| sall wrote: | | I can't get to cp to any directory. I can't access my /dev/hda or my / partitions from the rescue cd. weird. Can you give me a command to save the /proc/config.gz to my /home/craig directory and then i can install from there. Also, could I just download the same kernel to match the rescue cd and that would be the same thing? |
Please post the output of fdisk -l on the sysrecuecd.
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sall
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| Posted: Fri Jun 20, 2008 7:44 pm Post subject: |
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output of fdisk -l:
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/dev/sda1* 1 33 265041 Linux 83
/dev/sda2 34 546 41206724 Swap 82
/dev/sda3 547 7296 54219375 Linux 83
not exact, wasn't copy and paste but I thonk the /dev/ is what you needed. |
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Kasumi_Ninja
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| Posted: Fri Jun 20, 2008 7:58 pm Post subject: |
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| sall wrote: | output of fdisk -l:
| Code: |
/dev/sda1* 1 33 265041 Linux 83
/dev/sda2 34 546 41206724 Swap 82
/dev/sda3 547 7296 54219375 Linux 83
not exact, wasn't copy and paste but I thonk the /dev/ is what you needed. |
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Ok,
| Code: | *boot sysrecuecd*
*become root*
mkdir /mnt/gentoo
mount /dev/sda3 /mnt/gentoo |
Should do the trick
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sall
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| Posted: Fri Jun 20, 2008 9:16 pm Post subject: |
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Alright, I now have that accomplished..
| Code: |
# su
# mkdir /mnt/gentoo
# mount /dev/sda3 /mnt/gentoo
# cp /proc/config.gz /mnt/gentoo/usr/src
# reboot
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Now, how do I go about setting this kernel up and set up a different option for the new kernel in grub. Also, will the newly compiled kernel have everything the one I originally used on it. Meaning, will my sound, wireless, etc. still worked as I've compiled and built it as or will that kernel begin at ground zero again? Good looks, on the help so far! |
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sall
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| Posted: Fri Jun 20, 2008 9:21 pm Post subject: |
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I am thinking...
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craig@V2570nr ~ $ su
Password:
V2570nr craig # cd /usr/src/
V2570nr src # gzip -dv config.gz
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I am taking that from "linux Kernel ina Nutshell' segment mentioned by Aniruddha. Keep in my mind my previous post as to having two kernels and different grub entry for new kernel. Thanks! |
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Kasumi_Ninja
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| Posted: Fri Jun 20, 2008 9:49 pm Post subject: |
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I think the easiest way is to use genkernel
genkernel --install --bootloader=grub --kernel-config=path to your .config all
Should do the trick.
Update
I think you best install an older kernel with
| Code: | | emerge -av =gentoo-sources-2.6.24-r7 |
select this kernel with eselect:
| Code: | eselect kernel list
eselect kernel set 1 (or 2 depending on the number in the eselect list) |
Then run
| Code: | | genkernel --install --bootloader=grub --kernel-config=path to your .config all |
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sall
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| Posted: Fri Jun 20, 2008 11:07 pm Post subject: |
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| am I to do everything in your previous post, or just what is after update? |
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sall
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| Posted: Fri Jun 20, 2008 11:12 pm Post subject: |
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| going with what you had after Update after a second look. |
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sall
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| Posted: Fri Jun 20, 2008 11:18 pm Post subject: |
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sorry another question really quick.
| Code: |
genkernel --install --bootloader=grub --kernel-config=path to your .config all
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Should I do a:
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genkernel --install --bootloader=grub --kernel-config=/usr/src/config.gz all
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or does the config.gz I copied have to be extracted? |
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Kasumi_Ninja
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| Posted: Fri Jun 20, 2008 11:25 pm Post subject: |
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| sall wrote: | sorry another question really quick.
| Code: |
genkernel --install --bootloader=grub --kernel-config=path to your .config all
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Should I do a:
| Code: |
genkernel --install --bootloader=grub --kernel-config=/usr/src/config.gz all
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or does the config.gz I copied have to be extracted? |
Honestly I don't remember. If I were you I try them both. As long as you use the other (older) kernel your safe.
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sall
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| Posted: Fri Jun 20, 2008 11:31 pm Post subject: |
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Update:
Heres what I did in full:
[code]
# emerge -av =gentoo-sources-2.6.24-r7
# cp /usr/src/config /usr/src/linux-2.6.24-gentoo-r7/
# mv /usr/src/linux-2.6.24-gentoo-r7/config /usr/src/linux-2.6.24-gentoo-r7/.config
# eselect kernel list
Available kernel symlink targets:
[1] linux-2.6.24-gentoo-r7
[2] linux-2.6.24-gentoo-r8 *
# eselect kernel set1
# genkernel --install --bootloader=grub --kernel-config=/usr/src/linux-2.6.24-gentoo-r7/.config all
[code]
I hope this what was correct took me a few reads. I can get impatient, college summer classes are bumming me out. haha 
If you notice an error let me know, if not I will get back to you all with the results! Thanks again.[/code] |
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sall
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| Posted: Fri Jun 20, 2008 11:35 pm Post subject: |
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| Code: |
V2570nr src # genkernel --install --bootloader=grub --kernel-config=/usr/src/lin ux-2.6.24-gentoo-r7/.config all
* Gentoo Linux Genkernel; Version 3.4.9
* Running with options: --install --bootloader=grub --kernel-config=/usr/src/lin ux-2.6.24-gentoo-r7/.config all
* Linux Kernel 2.6.24-gentoo-r7 for x86_64...
* mount: /boot mounted successfully!
* kernel: >> Running mrproper...
* config: Using config from /usr/src/linux-2.6.24-gentoo-r7/.config
* Previous config backed up to .config.bak
cp: cannot stat `/usr/src/linux-2.6.24-gentoo-r7/.config': No such file or directory
* ERROR: Could not copy configuration file!
* -- Grepping log... --
* config: Using config from /usr/src/linux-2.6.24-gentoo-r7/.config
* Previous config backed up to .config.bak
* Gentoo Linux Genkernel; Version 3.4.9
* Running with options: --install --bootloader=grub --kernel-config=/usr/src/linux-2.6.24-gentoo-r7/.config all
* ERROR: Could not copy configuration file!
* -- End log... --
* Please consult /var/log/genkernel.log for more information and any
* errors that were reported above.
* Report any genkernel bugs to bugs.gentoo.org and
* assign your bug to genkernel@gentoo.org. Please include
* as much information as you can in your bug report; attaching
* /var/log/genkernel.log so that your issue can be dealt with effectively.
*
* Please do *not* report compilation failures as genkernel bugs!
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Not sure where I went wrong. |
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Kasumi_Ninja
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| Posted: Fri Jun 20, 2008 11:42 pm Post subject: |
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| sall wrote: | Update:
Heres what I did in full:
[code]
# emerge -av =gentoo-sources-2.6.24-r7
# cp /usr/src/config /usr/src/linux-2.6.24-gentoo-r7/
# mv /usr/src/linux-2.6.24-gentoo-r7/config /usr/src/linux-2.6.24-gentoo-r7/.config
# eselect kernel list
Available kernel symlink targets:
[1] linux-2.6.24-gentoo-r7
[2] linux-2.6.24-gentoo-r8 *
# eselect kernel set1
# genkernel --install --bootloader=grub --kernel-config=/usr/src/linux-2.6.24-gentoo-r7/.config all
[code]
I hope this what was correct took me a few reads. I can get impatient, college summer classes are bumming me out. haha
If you notice an error let me know, if not I will get back to you all with the results! Thanks again.[/code] |
Why did you do this?
[code]# cp /usr/src/config /usr/src/linux-2.6.24-gentoo-r7/
# mv /usr/src/linux-2.6.24-gentoo-r7/config /usr/src/linux-2.6.24-gentoo-r7/.config[/code]
Where is config.gz located?
If I were yout I'd try running genkernel with the config.gz first
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sall
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| Posted: Fri Jun 20, 2008 11:48 pm Post subject: |
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I was under the impression from 'Linux ina Nutshell" where it said to rename config.gz .config. I don't know... haha.
config is located in :
/usr/src/
should i move to /usr/src/linux-2.6.24-gentoo-r7/config.gz? or run it from /usr/source as:
| Code: |
# genkernel --install --bootloader=grub --kernel-config=/usr/src/linux-2.6.24-gentoo-r7/config.gz all
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