??? question "I am getting a 500/503 error when I try and access the main KVM page!"
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Older images have this issue due to yaml syntax, it's advised to reflash with the newest image
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This maybe due to a few of the following:
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Missing /etc/kvmd/override.yaml file, to resolve `cd /etc/kvmd ; touch override.yaml`
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Bad yaml syntax, edit your override.yaml file and undo what you did and restart PiKVM
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* Missing `/etc/kvmd/override.yaml` file, to resolve it run `rw; touch /etc/kvmd/override.yaml; ro`
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* Bad YAML syntax, edit your `/etc/kvmd/override.yaml` file and undo what you did and restart PiKVM.
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??? question "How can I use the serial console to access to access other devices"
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you need to stop the service which listens on the ttyAMA0:
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You need to stop the service which listens on the `/dev/ttyAMA0`:
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```
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rw
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!!! note
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* Only USB OR the RJ-45 serial connector will work, you can't use them together!
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* If you disable the service permanently, you can't recover your device via serial console if you need this.
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* There are some reports, that you need to remove "ttyAMA0" from /boot/cmdline.txt, but this is not needed on new installations.
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* There are some reports, that you need to remove `ttyAMA0` from /boot/cmdline.txt, but this is not needed on new installations.
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??? question "How can I have different hostnames for multiple pikvms?"
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Using a SSH session or the web terminal:
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Optionally you can enable the [two-factor authentication](auth.md#two-factor-authentication).
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??? question "How do I add another user?"
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As stated above you need to make 2 accounts, 1 for the shell, the other for the PiKVM Web UI.
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# passwd <user>
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```
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Keep in mind that the more users that are added, the stream if accessed, fps will drop.
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??? question "How do I get root access in the web terminal?"
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The web terminal works with the account `kvmd-webterm`. This is a regular user with no administrator privileges. In addition, `sudo` and login are disabled for this user for security reasons. To get `root` access, you need to use the `su -` command (minus is important) and **enter the root password**.
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* Do the same in `/etc/fstab` for the `/boot` partition.
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* Comment `tmpfs` lines in `/etc/fstab` for `/var/lib` and `/var/log`.
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!!! danger "But again: DON'T DO THIS"
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??? question "How to set the date, time and timezone from command line?"
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* Become root with the command `su -` or `sudo -s`.