Boot a Debian firmware-nonfree netinstall USB device with GRUB2

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I have an Apple MacMini Intel running a Debian Stretch (no BIOS-like boot list, just standard GRUB2).



I would like to boot on a USB device to set a fresh new installation, with the latest firmware-nonfree netinstall.



I add a custom entry to the GRUB2 menu like this (on a regular Debian session) :



$ sudo vi /etc/grub.d/40_custom
menuentry "Debian Netinstall (USB)" {
set root=(hd0)
linux /debian/install.amd/vmlinuz root=/dev/sdb1 ro
initrd /install.amd/initrd.gz
}


This allow me to run the text mode installer, directly to the language choice, but with a red painted backgroud (not the usual color for this netinstaller).



The problem came after the network config : I need to feed my wlan deice with the b43/* firmwares.



This USB device loaded with this Netinstall image was OK for installing a laptop (iwlwifi* firmware needed) earlier in the week. On a standard BIOS bootlist.



I try some stuff to feed installer with the asked firmwares :




  • using the installer shell to mount /cdrom/firmware/ /lib/firmware/

  • using another USB key with the firmware directory of the netinstall image

  • using another USB key with the specific files asked (found here)


None of this worked and the installer keep ask for the firmwares...



Questions :




  • How can I feed the installer with the asked files?

  • How can I set GRUB2 custom entry to run installer from the begining (the first menu asking for the kind of installation)?

  • Why the background is red?










share|improve this question



























    0















    I have an Apple MacMini Intel running a Debian Stretch (no BIOS-like boot list, just standard GRUB2).



    I would like to boot on a USB device to set a fresh new installation, with the latest firmware-nonfree netinstall.



    I add a custom entry to the GRUB2 menu like this (on a regular Debian session) :



    $ sudo vi /etc/grub.d/40_custom
    menuentry "Debian Netinstall (USB)" {
    set root=(hd0)
    linux /debian/install.amd/vmlinuz root=/dev/sdb1 ro
    initrd /install.amd/initrd.gz
    }


    This allow me to run the text mode installer, directly to the language choice, but with a red painted backgroud (not the usual color for this netinstaller).



    The problem came after the network config : I need to feed my wlan deice with the b43/* firmwares.



    This USB device loaded with this Netinstall image was OK for installing a laptop (iwlwifi* firmware needed) earlier in the week. On a standard BIOS bootlist.



    I try some stuff to feed installer with the asked firmwares :




    • using the installer shell to mount /cdrom/firmware/ /lib/firmware/

    • using another USB key with the firmware directory of the netinstall image

    • using another USB key with the specific files asked (found here)


    None of this worked and the installer keep ask for the firmwares...



    Questions :




    • How can I feed the installer with the asked files?

    • How can I set GRUB2 custom entry to run installer from the begining (the first menu asking for the kind of installation)?

    • Why the background is red?










    share|improve this question

























      0












      0








      0








      I have an Apple MacMini Intel running a Debian Stretch (no BIOS-like boot list, just standard GRUB2).



      I would like to boot on a USB device to set a fresh new installation, with the latest firmware-nonfree netinstall.



      I add a custom entry to the GRUB2 menu like this (on a regular Debian session) :



      $ sudo vi /etc/grub.d/40_custom
      menuentry "Debian Netinstall (USB)" {
      set root=(hd0)
      linux /debian/install.amd/vmlinuz root=/dev/sdb1 ro
      initrd /install.amd/initrd.gz
      }


      This allow me to run the text mode installer, directly to the language choice, but with a red painted backgroud (not the usual color for this netinstaller).



      The problem came after the network config : I need to feed my wlan deice with the b43/* firmwares.



      This USB device loaded with this Netinstall image was OK for installing a laptop (iwlwifi* firmware needed) earlier in the week. On a standard BIOS bootlist.



      I try some stuff to feed installer with the asked firmwares :




      • using the installer shell to mount /cdrom/firmware/ /lib/firmware/

      • using another USB key with the firmware directory of the netinstall image

      • using another USB key with the specific files asked (found here)


      None of this worked and the installer keep ask for the firmwares...



      Questions :




      • How can I feed the installer with the asked files?

      • How can I set GRUB2 custom entry to run installer from the begining (the first menu asking for the kind of installation)?

      • Why the background is red?










      share|improve this question














      I have an Apple MacMini Intel running a Debian Stretch (no BIOS-like boot list, just standard GRUB2).



      I would like to boot on a USB device to set a fresh new installation, with the latest firmware-nonfree netinstall.



      I add a custom entry to the GRUB2 menu like this (on a regular Debian session) :



      $ sudo vi /etc/grub.d/40_custom
      menuentry "Debian Netinstall (USB)" {
      set root=(hd0)
      linux /debian/install.amd/vmlinuz root=/dev/sdb1 ro
      initrd /install.amd/initrd.gz
      }


      This allow me to run the text mode installer, directly to the language choice, but with a red painted backgroud (not the usual color for this netinstaller).



      The problem came after the network config : I need to feed my wlan deice with the b43/* firmwares.



      This USB device loaded with this Netinstall image was OK for installing a laptop (iwlwifi* firmware needed) earlier in the week. On a standard BIOS bootlist.



      I try some stuff to feed installer with the asked firmwares :




      • using the installer shell to mount /cdrom/firmware/ /lib/firmware/

      • using another USB key with the firmware directory of the netinstall image

      • using another USB key with the specific files asked (found here)


      None of this worked and the installer keep ask for the firmwares...



      Questions :




      • How can I feed the installer with the asked files?

      • How can I set GRUB2 custom entry to run installer from the begining (the first menu asking for the kind of installation)?

      • Why the background is red?







      grub2 debian-installer firmware broadcom apple






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