Linux kernel Task 03:How to patch for the Linux kernel

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I have been very busy recently,let's go on the task 03.How to patch for the Linux kernel.

This is Task 03 of the Eudyptula Challenge

——————————————

Now that you have your custom kernel up and running, it's time to modify

it!

The tasks for this round are:

  – Take the kernel git tree from Task 02 and change the Makefile to

    modify the EXTRAVERSION field.  Do this in a way that the

    running kernel (after modifying the Makefile, rebuilding, and

    rebooting) has the characters "-eudyptula" in the version string.

  – Show proof of booting this kernel.  Extra cookies when you provide

    creative examples, especially if done in interpretive dance at your

    local pub.

  – Send a patch that shows the Makefile modified.  Do this in a manner

    that would be acceptable for merging in the kernel source tree.

    (Hint, read the file Documentation/SubmittingPatches and follow the

    steps there.)

[root@bogon linux]# uname -a
Linux bogon 3.15.0-rc4-00298-g9f1eb57 #1 SMP Wed May 7 21:30:42 PDT 2014 x86_64 x86_64 x86_64 GNU/Linux
[root@bogon ~]# cd /kernel/Task3/
[root@bogon Task3]# ls
linux
[root@bogon Task3]# cd linux/
[root@bogon linux]# cp Makefile Makefile.orig^C
[root@bogon linux]# cd ..
[root@bogon Task3]# diff -up linux/Makefile{.orig,} &amp;gt; /tmp/patch
[root@bogon Task3]# cat /tmp/patch 
--- linux/Makefile.orig 2014-05-22 06:19:41.842094049 -0700
+++ linux/Makefile      2014-05-22 06:21:08.616098040 -0700
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 15
 SUBLEVEL = 0
-EXTRAVERSION = -rc4
+EXTRAVERSION = -eudyptula
 NAME = Shuffling Zombie Juror
 
 # *DOCUMENTATION*
[root@bogon Task3]# cd linux/
[root@bogon linux]# make -j8
[root@bogon linux]# make modules
[root@bogon linux]# make modules_install
[root@bogon linux]# make install
[root@bogon linux]# cat /etc/grub.conf  
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/sda2
#          initrd /initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=3
splashimage=(hd0,0)/grub/splash.xpm.gz
#hiddenmenu
title CentOS (3.15.0-eudyptula-00298-g9f1eb57-dirty)
        root (hd0,0)
        kernel /vmlinuz-3.15.0-eudyptula-00298-g9f1eb57-dirty ro root=UUID=b4d19447-4c9d-4eb8-be5d-33e7ab8c5fd9 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM quiet
        initrd /initramfs-3.15.0-eudyptula-00298-g9f1eb57-dirty.img
title CentOS (3.15.0-rc4-00298-g9f1eb57)
        root (hd0,0)
        kernel /vmlinuz-3.15.0-rc4-00298-g9f1eb57 ro root=UUID=b4d19447-4c9d-4eb8-be5d-33e7ab8c5fd9 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM quiet
        initrd /initramfs-3.15.0-rc4-00298-g9f1eb57.img
title CentOS (2.6.32-279.el6.x86_64)
        root (hd0,0)
        kernel /vmlinuz-2.6.32-279.el6.x86_64 ro root=UUID=b4d19447-4c9d-4eb8-be5d-33e7ab8c5fd9 rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM quiet
        initrd /initramfs-2.6.32-279.el6.x86_64.img
[root@bogon linux]# reboot

Wait for a moment,let's check the kernel version use command:

[root@bogon ~]# uname -a
Linux bogon 3.15.0-eudyptula-00298-g9f1eb57-dirty #2 SMP Thu May 22 06:28:29 PDT 2014 x86_64 x86_64 x86_64 GNU/Linux

Luckly,it works!

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发表至： Kernel

2014-05-22

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Linux kernel Task 03:How to patch for the Linux kernel

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