Difference between revisions of "SYA710 Building a New Kernel"
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Alternate method of getting .config: | Alternate method of getting .config: | ||
* If the file /proc/config.gz does not exist on your system, you can get the required file by issuing the following commands: | * If the file /proc/config.gz does not exist on your system, you can get the required file by issuing the following commands: | ||
| − | # yum install | + | # yum install kernel-devel kernel-headers gcc |
# cp /usr/src/kernels/2.6.23.1-42.fc8-x86_64/.config ./ | # cp /usr/src/kernels/2.6.23.1-42.fc8-x86_64/.config ./ | ||
| Line 27: | Line 27: | ||
** make modules_install | ** make modules_install | ||
* create initial ram disk image | * create initial ram disk image | ||
| − | ** mkinitrd -k vmlinuz-2.6.26 -i initrd-2.6.26 (this did not work for me - mkinitrd considered it do be invalid syntax. Using 'mkinitrd initrd-2.6.26 2.6.26' worked, so try that if the first version gives you problems. - | + | ** mkinitrd -k vmlinuz-2.6.26 -i initrd-2.6.26 (this did not work for me - mkinitrd considered it do be invalid syntax. Using 'mkinitrd initrd-2.6.26 2.6.26' worked, so try that if the first version gives you problems. -Katherine Masseau) |
** For simplicity the syntax of mkinitrd file for here can be as .. | ** For simplicity the syntax of mkinitrd file for here can be as .. | ||
mkinitrd name-of- image kernel-version .i.e mkinitrd initrd-2.6.26 2.6.26 | mkinitrd name-of- image kernel-version .i.e mkinitrd initrd-2.6.26 2.6.26 | ||
** In generel if we have to create a initrd for the current running system the command i normally use | ** In generel if we have to create a initrd for the current running system the command i normally use | ||
| − | mkinitrd -v /boot/initrd-$(uname -r).img $(uname-r) | + | mkinitrd -v /boot/initrd-$(uname -r).img $(uname -r) |
* update GRUB | * update GRUB | ||
** vi /boot/grub/menu.lst | ** vi /boot/grub/menu.lst | ||
* reboot | * reboot | ||
Latest revision as of 22:38, 16 July 2012
Building a New Kernel
- download source from kernel.org
- unpack source
- tar xvjf linux-2.6.26.tar.bz2
- create configuration (.config) file
- cd linux-2.6.26
- cp /proc/config.gz . (If this file does not exist, skip ahead to the alternate approach below.)
- gzip -d config.gz
- mv config .config
Alternate method of getting .config:
- If the file /proc/config.gz does not exist on your system, you can get the required file by issuing the following commands:
- yum install kernel-devel kernel-headers gcc
- cp /usr/src/kernels/2.6.23.1-42.fc8-x86_64/.config ./
- make oldconfig
- customize your configuration
- make menuconfig
- compile kernel and modules
- make
- copy kernel image to /boot
- cp arch/x86/boot/bzImage /boot/vmlinuz-2.6.26
- copy system map to /boot
- cp System.map /boot/System.map-2.6.26
- install the modules
- make modules_install
- create initial ram disk image
- mkinitrd -k vmlinuz-2.6.26 -i initrd-2.6.26 (this did not work for me - mkinitrd considered it do be invalid syntax. Using 'mkinitrd initrd-2.6.26 2.6.26' worked, so try that if the first version gives you problems. -Katherine Masseau)
- For simplicity the syntax of mkinitrd file for here can be as ..
mkinitrd name-of- image kernel-version .i.e mkinitrd initrd-2.6.26 2.6.26
- In generel if we have to create a initrd for the current running system the command i normally use
mkinitrd -v /boot/initrd-$(uname -r).img $(uname -r)
- update GRUB
- vi /boot/grub/menu.lst
- reboot
