On Sat, 2009-10-17 at 18:32 +0200, Evgeni Golov wrote:
> Hi,
>
> On Sat, Oct 17, 2009 at 04:55:09PM +0100, Ben Hutchings wrote:
> > Due to bug #517130, linux-modules-extra-2.6 must be removed.
> >
> > If you want to continue having modules auto-built, we recommend that you
> > consider integrating with DKMS. You can trigger a build on installation
> > or upgrade of the module source. The dkms package then automatically
> > rebuilds installed module sources when a new kernel version is
> > installed.
> >
> > Why DKMS and not module-assistant? Your packages presumably already
> > work with m-a, but m-a doesn't automatically rebuild modules on upgrade.
> > Also, DKMS is supported by other distributions, so many out-of-tree
> > module sources already include the necessary configuration file.
>
> That means the modules will be "auto-built" on users computers?
Yes.
> Wasting time and bandwidth (fetching linux-headers etc)? Great...
Building obscure modules for every kernel flavour on Debian's own
auto-builders is also a waste, especially when just one broken module
breaks the whole conglomeration package.
> Are there any docs for how to add DKMS support in a Debian package? For
> people who never touched DKMS before?
I don't think so, but the following should work:
1. Write a configuration file. This is documented in the dkms manual
page and there are examples in /usr/share/doc/dkms/examples . A
minimal configuration file would be:
PACKAGE_NAME=test
PACKAGE_VERSION=0.1
MAKE[0]="make -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build"
CLEAN="make -C ${kernel_source_dir} M=${dkms_tree}/${PACKAGE_NAME}/${PACKAGE_VERSION}/build clean"
DEST_MODULE_LOCATION[0]=/extra
Note: DEST_MODULE_LOCATION[0] is used only when the module replaces
an in-tree module, so its value is not important for you, but you need
to specify it anyway.
2. Add to your postinst:
dkms add -m <name> -v <version>
dkms build -m <name> -v <version> && dkms install -m <name> -v <version> || true
The configuration file is assumed to be installed as
/usr/src/<name>-<version>/dkms.conf and the source is assumed to be
installed under /usr/src/<name>-<version>. You must specify
additional options to dkms add to override this.
3. Add to your prerm:
dkms remove -m <name> -v <version> --all || true
(DKMS maintainers: it might be worth adding a dh_dkms to implement the
above, or whatever you think should be the canonical way of doing this.)
There is a mailing list for DKMS in Debian:
http://lists.alioth.debian.org/mailman/listinfo/pkg-dkms-maint
pkg-dkms-maint@lists.alioth.debian.org
Ben.
--
Ben Hutchings
It is impossible to make anything foolproof because fools are so ingenious.
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