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Old 12-08-2008, 08:22 PM
Sven Joachim
Default Building kernels the Debian way (was: DPT2044W SCSI adaptor with disk installed but no /dev/sd* devices created)

I feel the need to correct a few bad ideas here.

On 2008-12-08 21:53 +0100, subscriptions wrote:

> Download the source code and unpack

Note, none but one of the steps below require root privileges if you are
a member of the `src' group or perform them below your home directory
instead of /usr/src.

> root# cd /usr/src
> root# wget
> http://kernel.org/pub/linux/kernel/v2.6/linux-
> root# bzip2 -d linux-
> root# tar -xvf linux-

Wasting time. Use "tar xjf linux-" instead of the last
two steps.

> Create new default link to new source code

This is absolutely unnecessary and maybe even harmful. Read the README
in the Linux kernel tree why you should not do it.

> root# cd /usr/src
> root# rm linux
> root# ln -s linux-

Omit these steps.

> Create a new config file based on the old one, this will prompt for new
> configuration settings. Read carefully every question.
> root# make oldconfig

Finally, some good advice. But before this step, you need to copy your
old config to linux- and cd to the kernel directory.

> Compile the kernel into .DEB package
> root# fakeroot make-kpkg --append-to-version "-newkernel"
> --revision "20081208" --us --uc --initrd kernel_image

Using fakeroot is redundant if you are root, but necessary if you follow
my advice and do this as normal user.

> Then install .deb packages created in parent directory

This is really the only step that requires root privileges.

> and link linux
> link to the new header directory in /usr/src.

No, do not do that.


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