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| raspberry-pi:ipfire-on-rpicm4 [2024/04/20 18:09] – [Preparation / Requirements] Zyzonix | raspberry-pi:ipfire-on-rpicm4 [2025/04/13 12:02] (current) – [Adjusting Interfaces (MAC Addresses) (important!)] Samsoneko |
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| Then you can execute the follwing command from the second Pi to connect to your serial console. **It's strongly recommended to use a local attached keyboard and monitor on a Pi that boots to CLI(!) rather than creating the serial connection via SSH / Desktop.** | Then you can execute the follwing command from the second Pi to connect to your serial console. **It's strongly recommended to use a local attached keyboard and monitor on a Pi that boots to CLI(!) rather than creating the serial connection via SSH / Desktop.** |
| <code bash>screen /dev/ttyS0 115200</code> | <code bash>screen /dev/ttyS0 115200</code> |
| | (root-permission required!) |
| → you might install ''screen'' befire by running the following command: | → you might install ''screen'' befire by running the following command: |
| <code bash>sudo apt install screen</code> | <code bash>sudo apt install screen</code> |
| **Select the 3rd option, that contains ''serial console''!** | **Select the 3rd option, that contains ''serial console''!** |
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| ===== Adjusting interfaces (important!) ===== | ===== Adjusting Interfaces (MAC Addresses) (important!) ===== |
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| As described also in this [[https://community.ipfire.org/t/rpi-cm4-red-interface-not-available-after-reboot/7119/3|blog post]] in IPFire's official forum, there are assigment issues with the carrier board's NICs. It seems that the second PCIe NIC gets a self-assignet MAC everytime the device boots up. This is followed by the host OS no longer recognizing the NIC. To solve this issue there is a more or less fancy workaround here in this wiki: [[linux:linux-tutorials:set-persistent-mac-rtl8111|Set persistent MAC for RTL8111/8168/8411 (r8169) with udev]] (internal link). | As described also in this [[https://community.ipfire.org/t/rpi-cm4-red-interface-not-available-after-reboot/7119/3|blog post]] in IPFire's official forum, there are assigment issues with the carrier board's NICs. It seems that the second PCIe NIC gets a self-assignet MAC everytime the device boots up. This is followed by the host OS no longer recognizing the NIC. To solve this issue there is a more or less fancy workaround here in this wiki: [[linux:linux-tutorials:set-persistent-mac-rtl8111|Set persistent MAC for RTL8111/8168/8411 (r8169) with udev]] (internal link). |