(Solved) Latest kernel headers/dkms won't install

[vayu]

The kernel module I use for my camera to work as a webcam for Zoom isn't working. DKMS usually does it automatically.
The module is video for linux: v4l2loopback
The kernel is: 5.6.13-towo.1-siduction-amd64

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apt-cache policy linux-headers-5.6.13-towo.1-siduction-amd64linux-headers-5.6.13-towo.1-siduction-amd64:
  Installed: (none)
  Candidate: 5.6-13

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apt install linux-headers-5.6.13-towo.1-siduction-amd64..The following packages have unmet dependencies:
cpp-10 : Depends: gcc-10-base (= 10.1.0-1) but 10-20200502-1 is to be installed
gcc-10 : Depends: gcc-10-base (= 10.1.0-1) but 10-20200502-1 is to be installed
          Depends: libcc1-0 (>= 10.1.0-1) but 10-20200502-1 is to be installed
          Depends: libgcc-10-dev (= 10.1.0-1) but it is not going to be installed

It seems cpp-10 and gcc-10 is interfering with compiling my linux-headers.
Does anyone know what I could do?

[hendrikL]

mh,

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:~$ inxi -Sxx
System:    Host: hhl Kernel: 5.6.13-towo.1-siduction-amd64 x86_64 bits: 64 compiler: gcc v: 10.1.0 Desktop: KDE Plasma 5.18.5
           tk: Qt 5.12.5 wm: kwin_x11 dm: SDDM Distro: siduction 18.3.0 Patience - kde - (201809172151)
           base: Debian GNU/Linux bullseye/sid


maybe it is worth a try

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apt install linux-headers-5.6.13-towo.1-siduction-amd64 libgcc-10-dev+


[der_bud]

I wonder where your "...but 10-20200502-1 is to be installed" comes from, because:

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$ LANG=C apt-cache policy gcc-10-base
gcc-10-base:
  Installed: 10.1.0-1
  Candidate: 10.1.0-1
  Version table:
*** 10.1.0-1 500
        500 http://ftp.plusline.net/debian unstable/main amd64 Packages
        100 /var/lib/dpkg/statusDo you have some uncommon repos active?

[vayu]

It must have something to do with wine or steam. When I manually list all the packages needed to complete gcc-10-base then it proposes to remove a huge list of :i386 packages as well as wine-stable.  I'm not sure what to do. 

[vayu]

Thanks for helping. I resolved it by letting go of wine and steam, now all is good with my kernel modules.  I'll play with steam another time.

[dpanter]

Removing Steam and Wine is not a satisfactory solution! 


I ran into this as well. These packages had different amd64/i386 versions available for upgrade. APT can't figure out what to do in these situations.

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gcc-10-base gcc-10-base:i386 libatomic1 libatomic1:i386 libgcc-s1 libgcc-s1:i386 libgomp1 libgomp1:i386 libstdc++6 libstdc++6:i386


Looked like this:

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gcc-10-base/now 10-20200502-1 amd64 [installed,upgradable to: 10.1.0-1]
gcc-10-base/now 10-20200502-1 i386 [installed,upgradable to: 10.1.0-2]


Specifying the correct version solves the issue, kernel headers can then be updated and virtualbox-dkms will build module properly.

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sudo apt install {gcc-10-base,gcc-10-base:i386,libatomic1,libatomic1:i386,libgcc-s1,libgcc-s1:i386,libgomp1,libgomp1:i386,libstdc++6,libstdc++6:i386}=10.1.0-1

[hendrikL]

mh, gcc-10=10.1.0-2 on amd64 is waiting to be buildd

https://buildd.debian.org/status/package.php?p=gcc-10&suite=sid

If this happens, then the problem is maybe solved!?

[DeepDayze]

If If this happens, then the problem is maybe solved!?

It should be OK hopefully if someone else tested it.

[vayu]

A couple days later and I've been able to reinstall wine, steam and the :i386 packages that I had to let go in order to compile my dkms modules.