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How can I create a backup of all the driver modules (especially those that are not part of the original kernel yet) from an installation of GNU/Linux OS?

The original source of the proprietary drivers has gone offline and I need to do a clean install of another Gnu/Linux OS.

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Kernel modules are usually located in /lib/modules. You can create a backup by executing tar -c -f backup.tar /lib/modules/$(uname -r). This will create(-c) a backup of the modules of your current kernel(uname -a) in the file(-f) backup.tar. Note that kernel modules for one kernel version do not necessarily work with another kernel version.

A few modules come with firmware typically located in /lib/firmware. You can find out with modinfo name_of_module. You should see something like "firmware: xyz-123.ucode".

If you need to pass any options to the modules in /etc/modprobe.d, you have to backup that file as well. You can find out with grep -r name_of_module /etc/modprobe.d.

| improve this answer | |
  • I was wondering if backing up the modules is all that's needed. Is there nothing else, eg. editing a few settings etc, that's needed? – rinfinity Dec 24 '15 at 17:16
  • That's all you need if you don't need to pass any options to the module. Updated answer with info about that. – tastytea Dec 25 '15 at 2:47
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    a few modules have firmware typically in /lib/firmware – cybernard Dec 25 '15 at 3:10

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