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Linux kernel release 2.6.xx <http://kernel.org/>
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Linux kernel release 3.x <http://kernel.org/>
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These are the release notes for Linux version 2.6. Read them carefully,
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These are the release notes for Linux version 3. Read them carefully,
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as they tell you what this is all about, explain how to install the
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kernel, and what to do if something goes wrong.
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directory where you have permissions (eg. your home directory) and
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gzip -cd linux-2.6.XX.tar.gz | tar xvf -
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gzip -cd linux-3.X.tar.gz | tar xvf -
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bzip2 -dc linux-2.6.XX.tar.bz2 | tar xvf -
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bzip2 -dc linux-3.X.tar.bz2 | tar xvf -
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Replace "XX" with the version number of the latest kernel.
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files. They should match the library, and not get messed up by
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whatever the kernel-du-jour happens to be.
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- You can also upgrade between 2.6.xx releases by patching. Patches are
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- You can also upgrade between 3.x releases by patching. Patches are
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distributed in the traditional gzip and the newer bzip2 format. To
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install by patching, get all the newer patch files, enter the
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top level directory of the kernel source (linux-2.6.xx) and execute:
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top level directory of the kernel source (linux-3.x) and execute:
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gzip -cd ../patch-2.6.xx.gz | patch -p1
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gzip -cd ../patch-3.x.gz | patch -p1
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bzip2 -dc ../patch-2.6.xx.bz2 | patch -p1
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bzip2 -dc ../patch-3.x.bz2 | patch -p1
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(repeat xx for all versions bigger than the version of your current
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source tree, _in_order_) and you should be ok. You may want to remove
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failed patches (xxx# or xxx.rej). If there are, either you or me has
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Unlike patches for the 2.6.x kernels, patches for the 2.6.x.y kernels
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Unlike patches for the 3.x kernels, patches for the 3.x.y kernels
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(also known as the -stable kernels) are not incremental but instead apply
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directly to the base 2.6.x kernel. Please read
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directly to the base 3.x kernel. Please read
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Documentation/applying-patches.txt for more information.
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Alternatively, the script patch-kernel can be used to automate this
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an alternative directory can be specified as the second argument.
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- If you are upgrading between releases using the stable series patches
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(for example, patch-2.6.xx.y), note that these "dot-releases" are
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not incremental and must be applied to the 2.6.xx base tree. For
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example, if your base kernel is 2.6.12 and you want to apply the
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2.6.12.3 patch, you do not and indeed must not first apply the
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2.6.12.1 and 2.6.12.2 patches. Similarly, if you are running kernel
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version 2.6.12.2 and want to jump to 2.6.12.3, you must first
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reverse the 2.6.12.2 patch (that is, patch -R) _before_ applying
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(for example, patch-3.x.y), note that these "dot-releases" are
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not incremental and must be applied to the 3.x base tree. For
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example, if your base kernel is 3.0 and you want to apply the
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3.0.3 patch, you do not and indeed must not first apply the
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3.0.1 and 3.0.2 patches. Similarly, if you are running kernel
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version 3.0.2 and want to jump to 3.0.3, you must first
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reverse the 3.0.2 patch (that is, patch -R) _before_ applying
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You can read more on this in Documentation/applying-patches.txt
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- Make sure you have no stale .o files and dependencies lying around:
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SOFTWARE REQUIREMENTS
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Compiling and running the 2.6.xx kernels requires up-to-date
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Compiling and running the 3.x kernels requires up-to-date
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versions of various software packages. Consult
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Documentation/Changes for the minimum version numbers required
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and how to get updates for these packages. Beware that using
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Using the option "make O=output/dir" allow you to specify an alternate
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place for the output files (including .config).
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kernel source code: /usr/src/linux-2.6.N
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kernel source code: /usr/src/linux-3.N
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build directory: /home/name/build/kernel
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To configure and build the kernel use:
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cd /usr/src/linux-2.6.N
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cd /usr/src/linux-3.N
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make O=/home/name/build/kernel menuconfig
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make O=/home/name/build/kernel
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sudo make O=/home/name/build/kernel modules_install install