linux-kernel - how to avoid that install.sh goes mad, if I am not root?

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Message-ID: <4D388A08.1010004@afaics.de>
Date:	Thu, 20 Jan 2011 20:16:24 +0100
From:	Harald Dunkel <harri@...ics.de>
To:	Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: how to avoid that install.sh goes mad, if I am not root?

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Hi folks,

I am trying to build my own custom Debian kernel package. Problem:
If the kernel is supposed to be installed in a temporary package
build directory, then it dies with

:
:
make[1]: Entering directory `/var/tmp/build_kernel/raw-kernel-2.6.37/linux-2.6.37'
sh /var/tmp/build_kernel/raw-kernel-2.6.37/linux-2.6.37/arch/x86/boot/install.sh 2.6.37 arch/x86/boot/bzImage \
                System.map "/var/tmp/build_kernel/raw-kernel-2.6.37/debian/raw-kernel-2.6.37/boot"
run-parts: executing /etc/kernel/postinst.d/dkms 2.6.37 /var/tmp/build_kernel/raw-kernel-2.6.37/debian/raw-kernel-2.6.37/boot/vmlinuz-2.6.37
dkms: running auto installation service for kernel 2.6.37:
      nvidia-current (260.19.29)...done.
      vboxhost (3.2.12)...done.
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.37 /var/tmp/build_kernel/raw-kernel-2.6.37/debian/raw-kernel-2.6.37/boot/vmlinuz-2.6.37
run-parts: executing /etc/kernel/postinst.d/pm-utils 2.6.37 /var/tmp/build_kernel/raw-kernel-2.6.37/debian/raw-kernel-2.6.37/boot/vmlinuz-2.6.37
touch: cannot touch `/var/run/do-not-hibernate': Permission denied
run-parts: /etc/kernel/postinst.d/pm-utils exited with return code 1
make[3]: *** [install] Error 1
make[2]: *** [install] Error 2
make[1]: *** [sub-make] Error 2
make[1]: Leaving directory `/var/tmp/build_kernel/raw-kernel-2.6.37/linux-2.6.37'

AFAICS this happens because the arch/x86/boot/install.sh script calls
/sbin/installkernel, which in turn runs all the scripts delivered
by various other packages. This is fine for a regular kernel install
as well as for an installation of the final kernel package, but for
a non-root install in a package build directory /sbin/installkernel
and all the run-parts scripts should not be run. installkernel doesn't
even know the redefined install directory.

Would it be possible to avoid that /sbin/installkernel is run by
install,sh, e.g. if the install directory has been redefined, or if
UID != 0?

Any helpful comment would be highly appreciated

Harri
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