Basic questions

Good to know

• Find an entry in menuconfig/kconfig?
  Open menuconfig and then input the / character to search.
• Flash an (avm or modified) image by bootloader?
  Run tools/push_firmware, use tools/push_firmware -h for help. Or just make push_firmware after make.
• Flash with Raspberry?
  Put the created image onto the raspberry. Download the current push_firmware script: wget https://raw.githubusercontent.com/Freetz-NG/freetz-ng/master/tools/push_firmware Make it executable: chmod +x push_firmware. Now run it: ./push_firmware ...
• Why in-memory image format?
  It’s no longer needed, as push_firmware can flash an image itself.
• Unpack an image?
  Use tools/fwdu unpack the.image to extrace the (inner) filesystem.
• Older modem/DSL driver?
  Unpack the source image file with fwdu. Then copy the needed files with directories to a sub directory of the addon/ directory in Freetz. Now enable the new addon in a addon/*.pkg file The needed files depends on your device. Examples:
  • For 7490, the whole directory /lib/modules/dsp_vr9/
  • For 7590, the whole directory /lib/modules/dsp_vr11/
• Replace kernel?
  Don’t use it - until you know why you need it! You’ll never have an kernel as expected by avm. Maybe some patches are missing, maybe some options are not selected as avm intended.
• Build kernel modules?
  
  • If you dont know which module for a specific device is required, attach the device to a Linux PC to check it. Commands: dmesg, lsusb, lsmod etc
  • Make sure the latest source code for your device is available at https://osp.avm.de/ and integrated into Freetz. If not, you need to ask AVM: fritzbox_info@avm.de
  • Now run make menuconfig and select your Fritzbox and Fritzos. Then the module needs to be enabled with make kernel-menuconfig as “M(odule)”, use / to search.
  • If you dont want to do that every time, you could upload your changes in make/linux/configs/freetz/ as a push-request.
  • To copy the file to the image, selected it with make menuconfig or if not available add its name(s) to Kernel modules -> Own Modules.
• Execute files on storages?
  Disabled by default since some time by AVM. To allow, select “Drop noexec for (external) storages” patch. For internal storages, it is enabled always with Freetz!
• Execute commands on reboot?
  Put your executable script here: /tmp/flash/mod/shutdown
• Edit read-only files (or directories)?
  1) Copy the file: cp /some/path/to/file /tmp/file
  2) Mount it: mount -o bind /tmp/file /some/path/to/file
• Change motd?
  You could put your own *script* here: /tmp/flash/mod/motd The motd will be generated 1 time at boot. To update it regularly, run /mod/etc/init.d/rc.mod motd eg by cron.
• Old packages structure in menuconfig?
  To use old packages structure, run make menuconfig-single.
• How to handle Git?
  Quick start guide for begitners: https://xkcd.com/1597/

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