Difference between revisions of "SYA710 Building a New Kernel"

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(Building a New Kernel)
Line 6: Line 6:
 
* create configuration (.config) file
 
* create configuration (.config) file
 
** cd linux-2.6.26
 
** cd linux-2.6.26
** cp /proc/config.gz .      
+
** cp /proc/config.gz . (If this file does not exist, skip ahead to the alternate approach below.)
 +
** gzip -d config.gz
 +
** mv config .config
  
## or if you need to install kernel header....
+
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 kerneldevel
 
## yum install kerneldevel
 
## 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 ./
  
** gzip -d config.gz
 
** mv config .config
 
 
** make oldconfig
 
** make oldconfig
 
* customize your configuration
 
* customize your configuration

Revision as of 15:57, 19 October 2008

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:

    1. If the file /proc/config.gz does not exist on your system, you can get the required file by issuing the following commands:
    2. yum install kerneldevel
    3. 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
  • update GRUB
    • vi /boot/grub/menu.lst
  • reboot