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Applying the patch

As the patches we have downloaded are compressed, the first thing to do is uncompress them with the bzip2 command:

bzip2 -dv patch-

  patch- done
bzip2 -dv patch-

  patch- done
ls -F

good_config linux-  patch-  patch-

Now we need to apply the patch files to the kernel directory. Go into the directory:

cd linux-

and run the patch program to apply the first patch moving the source tree from the to the release:

patch -p1 < ../patch-

patching file Makefile
patching file block/elevator.c
patching file fs/udf/super.c
patching file fs/udf/truncate.c
patching file include/net/sctp/sctp.h
patching file include/net/sctp/sm.h
patching file net/sctp/sm_make_chunk.c
patching file net/sctp/sm_statefuns.c
patching file net/sctp/socket.c

Verify that the patch really did work properly and that there are no errors or warnings in the output of the patch program. It is also a good idea to look at the Makefile of the kernel to see the kernel version:

$ head -n 5 Makefile

NAME=Crazed Snow-Weasel

Now that the kernel is at the release level, do the same thing as before and apply the patch to bring it up to the level:

patch -p1 < ../patch-

patching file Makefile
patching file arch/ia64/kernel/sys_ia64.c
patching file arch/sparc/kernel/sys_sparc.c
patching file arch/sparc64/kernel/sys_sparc.c
patching file drivers/char/tpm/tpm_tis.c
patching file drivers/ieee1394/ohci1394.c
patching file drivers/md/dm-mpath.c
patching file drivers/md/raid1.c
patching file drivers/net/sky2.c
patching file drivers/pci/quirks.c
patching file drivers/serial/Kconfig
patching file fs/befs/linuxvfs.c
patching file fs/ext3/super.c
patching file include/asm-generic/mman.h
patching file include/asm-ia64/mman.h
patching file include/asm-sparc/mman.h
patching file include/asm-sparc64/mman.h
patching file kernel/timer.c
patching file lib/spinlock_debug.c
patching file mm/mmap.c
patching file mm/swapfile.c
patching file net/bridge/netfilter/ebt_ulog.c
patching file net/core/dst.c
patching file net/core/rtnetlink.c
patching file net/ipv4/fib_semantics.c
patching file net/ipv4/netfilter/arp_tables.c
patching file net/ipv4/netfilter/ip_tables.c
patching file net/ipv4/netfilter/ipt_ULOG.c
patching file net/ipv4/route.c
patching file net/ipx/af_ipx.c
patching file net/netfilter/nfnetlink_log.c

Again verify that the output of the patch program did not show any errors and look at the Makefile:

head -n 5 Makefile

NAME=Crazed Snow-Weasel

Now that the source code is successfully updated to the version you wish to use, it is a good idea to go back and change the directory name to refer to the kernel version number so that confusion does not occur at a later time:

cd ..

mv linux- linux-

ls -F

good_config linux-  patch-  patch-

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