How to upgrade to new kernel?

austinramsay · 10-17-2013, 08:55 PM

Im running gentoo with kernel 3.10.7-r1 currently and would like to upgrade to 3.11.5. I downloaded the kernel source, how would i do this? Do you mv the whole kernel into /usr/src/linux and compile it? Then edit grub.conf to boot off it or what? Can someone explain the process to me?

evo2 · 10-17-2013, 09:01 PM

Hi,

I'm not a gentoo user, but I do know that gentoo has a reputation of providing pretty good documentation. Is there some reason you can't use the procedure documented at http://www.gentoo.org/doc/en/kernel-upgrade.xml?

Evo2.

Nuke'em · 10-18-2013, 11:03 PM

I agree with Evo2. Check the gentoo online documentation.

I also never used gentoo but I did compile a kernel from crux linux. I do have one tip for a new .config creation.

Configuring a kernel is complex. So I always use an existing .config file as a template. Use your existing .config file if you already have a working kernel. Or get one from a distro as close to the new kernel version if possible.

Next, run make oldconfig

this will read the existing .config file and will prompt you for options in the current kernel source that are not found in the file. This is useful when taking an existing configuration and moving it to a new kernel.

austinramsay · 10-19-2013, 01:43 PM

Okay so far i moved the 3.11.5 kernel into /usr/src and linked it to /usr/src/linux, i set added symlink to my USE flag and then copied my .config from the old kernel into the new one and tried doing make menuconfig but i got this:

Code:

/bin/sh: /usr/src/linux-3.11.5/scripts/kconfig/lxdialog/check-lxdialog.sh: No such file or directory
/bin/sh: /usr/src/linx-3.11.5/scripts/kconfig/lxdialog/check-lxdialog.sh: No such file or directory
make[1]: *** No rule to make target 'scripts/kconfig/lxdialog/checklist.c', needed by 'scripts/kconfig/lxdialog/checklist.o'. Stop. Make: *** [menuconfig] Error 2

onebuck · 10-20-2013, 06:56 AM

Hi,

Another Gentoo guide for configuring;

Quote:

Gentoo Linux Documentation -- Configuring the Kernel

Hope this helps.

andrewthomas · 10-20-2013, 08:07 AM

Quote:

Originally Posted by austinramsay

Okay so far i moved the 3.11.5 kernel into /usr/src and linked it to /usr/src/linux, i set added symlink to my USE flag and then copied my .config from the old kernel into the new one and tried doing make menuconfig but i got this:

Code:

/bin/sh: /usr/src/linux-3.11.5/scripts/kconfig/lxdialog/check-lxdialog.sh: No such file or directory
/bin/sh: /usr/src/linx-3.11.5/scripts/kconfig/lxdialog/check-lxdialog.sh: No such file or directory
make[1]: *** No rule to make target 'scripts/kconfig/lxdialog/checklist.c', needed by 'scripts/kconfig/lxdialog/checklist.o'. Stop. Make: *** [menuconfig] Error 2

You seem to be double posting here:

Quote:

Originally Posted by andrewthomas

Code:

lxde@gentoo-asus ~ $ ls -al /usr/src/linux/scripts/kconfig/lxdialog/check-lxdialog.sh 
-rw-r--r-- 1 root root 1887 Sep  2 15:46 /usr/src/linux/scripts/kconfig/lxdialog/check-lxdialog.sh

Code:

lxde@gentoo-asus ~ $ ls -al /usr/src/linux-3.11.5-gentoo/scripts/kconfig/lxdialog/check-lxdialog.sh 
-rw-r--r-- 1 root root 1887 Sep  2 15:46 /usr/src/linux-3.11.5-gentoo/scripts/kconfig/lxdialog/check-lxdialog.sh

Does the file exist?

http://www.linuxquestions.org/questi...el-4175481432/

Just use the gen kernel if you can't figure it out.

mreff555 · 10-20-2013, 10:09 AM

You need to run

Code:

make oldconfig

This will parse your old config file and bring it up to date. It may ask you some questions in regard to new features. Try to answer them, but if you aren't sure the default response will usually not break your system. Once it finishes, you should be able to run

Code:

make menuconfig