Hardly an issue that seems to affect day to day operations. At least from what I can see. However I do see the package is referenced here:
enceladus# apt show firmware-linux-free Package: firmware-linux-free Version: 20200122-1 Priority: optional Section: kernel Source: firmware-free Maintainer: Debian Kernel Team <debian-ker...@lists.debian.org> Installed-Size: 87.0 kB Suggests: initramfs-tools Homepage: http://git.kernel.org/?p=linux/kernel/git/firmware/linux-firmware.git Download-Size: 24.2 kB APT-Manual-Installed: no APT-Sources: http://deb.debian.org/debian-ports sid/main ppc64 Packages Description: Binary firmware for various drivers in the Linux kernel This package contains firmware which was previously included in the Linux kernel and which is compliant with the Debian Free Software Guidelines. . Most firmware previously included in the Linux kernel is non-free and has been moved to the firmware-linux-nonfree package. . Contents: * AV7110 DVB card firmware (av7110/bootcode.bin) * Atheros AR9170 free firmware for use with carl9170 (carl9170-1.fw) * 3Com Megahertz 3CCFEM556 CIS fix (cis/3CCFEM556.cis) * 3Com Megahertz 3CXEM556 CIS fix (cis/3CXEM556.cis) * Advantech COMpad-32/85 CIS fix (cis/COMpad2.cis) * Advantech COMpad-32/85B-4 CIS fix (cis/COMpad4.cis) * NSC DP83903 PCMCIA Ethernet card CIS fix (cis/DP83903.cis) * Allied Telesis LA-PCM CIS fix (cis/LA-PCM.cis) * MultiTech PCMCIA 56K DataFax CIS fix (cis/MT5634ZLX.cis) * NDC PCMCIA Ethernet card CIS fix (cis/NE2K.cis) * EN2218-LAN/MODEM CIS fix (cis/PCMLM28.cis) * PreMax PE-200 CIS fix (cis/PE-200.cis) * LanPro EP-4000A CIS fix (cis/PE520.cis) * RS-COM 2P CIS fix (cis/RS-COM-2P.cis) * Sierra Aircard 555 CIS fix (cis/SW_555_SER.cis) * Sierra Wireless AC710/AC750 CIS fix (cis/SW_7xx_SER.cis) * Sierra Wireless AC850/AC860 CIS fix (cis/SW_8xx_SER.cis) * Tamarack PCMCIA Ethernet card CIS fix (cis/tamarack.cis) * Atari Falcon DSP56001 firmware (dsp56k/bootstrap.bin) * Intel C600 SAS/SATA controller default parameters, version 1.3 (isci/isci_firmware.bin) * Keyspan USA-19 firmware (keyspan_pda/keyspan_pda.fw) * Xircom PGSDB9/Entrega PortGear firmware (keyspan_pda/xircom_pgs.fw) * USB-DUX firmware (usbdux_firmware.bin) * USB-DUXfast firmware (usbduxfast_firmware.bin) * USB-DUXsigma firmware (usbduxsigma_firmware.bin) enceladus# I went looking for that only to silence the hundreds of lines of warnings from initramfs-tools. All of them are related to nouveau : . . . W: Possible missing firmware /lib/firmware/nvidia/tu104/nvdec/scrubber.bin for module nouveau W: Possible missing firmware /lib/firmware/nvidia/tu102/nvdec/scrubber.bin for module nouveau W: Possible missing firmware /lib/firmware/nvidia/gv100/nvdec/scrubber.bin for module nouveau W: Possible missing firmware /lib/firmware/nvidia/gm206/gr/sw_method_init.bin for module nouveau W: Possible missing firmware /lib/firmware/nvidia/gm206/gr/sw_bundle_init.bin for module nouveau . . . They seem to be just annoying. Harmless. Mostly harmless? -- Dennis Clarke RISC-V/SPARC/PPC/ARM/CISC UNIX and Linux spoken GreyBeard and suspenders optional