On Mon, May 04, 2020 at 12:45:55PM +0200, Greg KH wrote: > On Mon, May 04, 2020 at 01:26:35PM +0300, Doron Behar wrote: > > I hope this question fits to this List. > > > > Today I learned that my distro's `linux-unfree-firmware` package is 491 > > Mb in size. I'm pretty sure my hardware doesn't need all of these files. > > Maybe different Linux distros call this package differently, but I'm talking > > about the firmware files that come from: > > https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/ > > > > I think I can reduce this disk usage if I'll only know what files > > I can exclude from there. > > > > Is there any official documentation, that states exactly what files from > > That git repo are needed per device / computer model? Perhaps the official > > documentation of my Computer's hardware will state that? There's a Linux > > from scratch webpage[1] that gives some info for popular hardware, but I'm > > wondering if there's a bit more "official" information available > > somewhere. > > > > [1]: http://linuxfromscratch.org/blfs/view/svn/postlfs/firmware.html > > The kernel macro MODULE_FIRMWARE() will show the firmware file that a > specific kernel module needs. So if you look a the output of modinfo > for all of the modules that your system needs, you will see a "firmware" > line that shows the name that your hardware needs for that specific > driver/module. Thanks for replying greg, So I have the command `modinfo` available, should I just iterate _all_ the files in /usr/lib/modules/5.6.7/kernel ? For example: ``` $ modinfo /usr/lib/modules/5.6.7/kernel/net/ieee802154/ieee802154.ko.xz filename: /usr/lib/modules/5.6.7/kernel/net/ieee802154/ieee802154.ko.xz author: Dmitry Eremin-Solenikov description: IEEE 802.15.4 configuration interface license: GPL v2 depends: retpoline: Y intree: Y name: ieee802154 vermagic: 5.6.7 SMP mod_unload sig_id: PKCS#7 signer: sig_key: sig_hashalgo: unknown signature: ``` Doesn't seem informative regarding firmware files. Should I expect other .ko.xz files to give a line with `firmware: `? Plus, how do I know what modules does my system need and which it doesn't? Doron. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
