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Update building_os.md

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Maxim Devaev 2020-10-31 00:51:32 +03:00 committed by GitHub
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@ -85,7 +85,23 @@ The Pi-KVM OS is based on Arch Linux ARM and contains all the required packages
10. To change the root password use command `passwd` via SSH or webterm. To change Pi-KVM web password use `kvmd-htpasswd set admin`. As indicated on the login screen use `rw` to make the root filesystem writable, before issuing these commands. After making changes, make sure to run the command `ro`.
11. **27.08.2020 note about systemd**: the latest version of Arch Linux has a slightly broken systemd. The problem is that SSH to the Pi-KVM host may not work the first time, but the second or third. The Pi-KVM build environment contains a workaround for this problem: in the file `/etc/pam.d/system-login` line `-session optional pam_systemd.so` is commented. This does not have any negative impact on the PI-KVM functionality, but if you want to, after fixing the systemd (in a couple of months with the next update), you can uncomment this line.
11. Important **note for HDMI-USB dongle** users only. Because of this, many video capture devices tell the server's video card that the HDMI cable is supposedly disconnected. This may lead to the fact that if you boot the server without an active stream, the server will not detect your capture card. This is easy to fix:
* Switch filesystem to RW-mode:
```
# rw
```
* Edit file `/etc/kvmd/override.yaml` and add these lines:
```yaml
kvmd:
streamer:
forever: true
```
* Restart KVMD:
```
# systemctl restart kvmd
```
12. **27.08.2020 note about systemd**: the latest version of Arch Linux has a slightly broken systemd. The problem is that SSH to the Pi-KVM host may not work the first time, but the second or third. The Pi-KVM build environment contains a workaround for this problem: in the file `/etc/pam.d/system-login` line `-session optional pam_systemd.so` is commented. This does not have any negative impact on the PI-KVM functionality, but if you want to, after fixing the systemd (in a couple of months with the next update), you can uncomment this line.
If you have any problems or questions, contact us using Discord: https://discord.gg/bpmXfz5