DEV Community

The Homelab Postmortem profile picture

The Homelab Postmortem

I write up homelab failures where the tool reported success — ufw says the port is closed while it answers, tar exits 0 on an empty archive. Everything is reproduced on real hardware before it goes up

Joined Joined on  Personal website https://homelabpostmortem.com
llama-cli prints the error and exits 0. The same binary exits 1 when the model is missing.
homelabpm profile

llama-cli prints the error and exits 0. The same binary exits 1 when the model is missing.

#ai #linux #devops #bash
Comments
4 min read
cloud-init calls your user-data valid. It will never read the ssh_import_id in it.
homelabpm profile

cloud-init calls your user-data valid. It will never read the ssh_import_id in it.

#raspberrypi #linux #devops #sysadmin
Comments
6 min read
iptables says your kernel needs upgrading. Upgrading the kernel is what broke it.
homelabpm profile

iptables says your kernel needs upgrading. Upgrading the kernel is what broke it.

#raspberrypi #linux #networking #docker
Comments
6 min read
tar backed up your Pi's WiFi config and exited 0. The archive holds one empty directory.
homelabpm profile

tar backed up your Pi's WiFi config and exited 0. The archive holds one empty directory.

#raspberrypi #linux #networking #sysadmin
Comments
9 min read
Podman publishes the same port and your firewall still holds. Even as root.
homelabpm profile

Podman publishes the same port and your firewall still holds. Even as root.

#podman #docker #security #linux
Comments
5 min read
UFW says the port is closed. Docker published it to your whole network anyway.
homelabpm profile

UFW says the port is closed. Docker published it to your whole network anyway.

#docker #security #linux #raspberrypi
Comments
5 min read
A new NetworkManager property broke a decade of headless WiFi scripts
homelabpm profile

A new NetworkManager property broke a decade of headless WiFi scripts

#raspberrypi #linux #networking #sysadmin
Comments
5 min read
sysctl -p says it worked. The next reboot disagrees.
homelabpm profile

sysctl -p says it worked. The next reboot disagrees.

#raspberrypi #linux #systemd #sysadmin
Comments
6 min read
Your Pi accepts every memory limit you set and enforces none of them
homelabpm profile

Your Pi accepts every memory limit you set and enforces none of them

#raspberrypi #docker #linux #containers
Comments
6 min read
Your Pi's 2 GB swap file isn't swap, and no swap command will tell you that
homelabpm profile

Your Pi's 2 GB swap file isn't swap, and no swap command will tell you that

#raspberrypi #linux #sysadmin #debugging
Comments
6 min read
Raspberry Pi OS Trixie throws away your logs on reboot, and /var/log/journal exists anyway to reassure you it doesn’t
homelabpm profile

Raspberry Pi OS Trixie throws away your logs on reboot, and /var/log/journal exists anyway to reassure you it doesn’t

#raspberrypi #cloudflare #stripe #webhooks
Comments
4 min read
Stripe retries a failed webhook for three days, and I found out by getting the same email three times
homelabpm profile

Stripe retries a failed webhook for three days, and I found out by getting the same email three times

#raspberrypi #cloudflare #stripe #webhooks
Comments
4 min read
Your Discord bot is ignoring you, and the status output is lying about why
homelabpm profile

Your Discord bot is ignoring you, and the status output is lying about why

#raspberrypi #cloudflare #stripe #webhooks
Comments
4 min read
Undervoltage doesn’t look like a power problem. It looks like bad Wi-Fi.
homelabpm profile

Undervoltage doesn’t look like a power problem. It looks like bad Wi-Fi.

#raspberrypi #cloudflare #stripe #webhooks
Comments
4 min read
The rpi-clone PARTUUID trap: why your Pi 4B silently refuses to boot from a cloned SSD
homelabpm profile

The rpi-clone PARTUUID trap: why your Pi 4B silently refuses to boot from a cloned SSD

#raspberrypi #cloudflare #stripe #webhooks
Comments
5 min read
loading...