Jellyfish

Raspberry Pi 5 running Debian Trixie, behind a GL-MT3600BE (Beryl 7) router in Hawaii.

Hardware

Property	Value
Model	Raspberry Pi 5 Model B Rev 1.0
CPU	ARM Cortex-A76 (2 cores visible), BogoMIPS 108
RAM	4 GB
Boot disk	32GB microSD (mmcblk0)
External storage	4TB NVMe SSD (Crucial CT4000P3SSD8) via USB, LUKS+EXT4
OS	Debian 13 (Trixie)
Tailscale IP	`100.69.121.120`
Headscale node	ID:15
LAN IP	`192.168.12.181` (eth0), `192.168.12.182` (wlan0)
Gateway	GL-MT3600BE at `192.168.12.1`
User	`lulu`

Network

Jellyfish is on the Beryl 7's 192.168.12.0/24 LAN, reachable from the tailnet via Tailscale or via the router's subnet route.

ssh jellyfish              # via Tailscale (100.69.121.120)
ssh lulu@192.168.12.181    # from devices on the Beryl 7 LAN

External Drive (LUKS)

The 4TB NVMe is encrypted with LUKS and mounted at /srv/nas. It must be opened manually after each reboot (passphrase required).

Bring Up

sudo cryptsetup luksOpen /dev/sda ssd    # enter passphrase
sudo mount /dev/mapper/ssd /srv/nas
sudo systemctl start smbd
docker compose -f /srv/nas/ametrine/Docker/photoprism/compose.yaml up -d

Shut Down

docker compose -f /srv/nas/ametrine/Docker/photoprism/compose.yaml down
sudo systemctl stop smbd
sudo umount /srv/nas
sudo cryptsetup close ssd
sudo shutdown -h now

FSCK Recovery Notes

The SSD has had EXT4 corruption from 143 unsafe shutdowns (power loss, not hardware failure). SMART reports healthy (0 errors, 100% spare). Recovery notes are at /home/lulu/FSCK-RECOVERY-NOTES.md on jellyfish.

If LUKS mapper returns I/O errors but raw /dev/sda reads fine:

Stop all services (photoprism, smbd, syncthing)
Unmount /srv/nas
Close LUKS: sudo cryptsetup close ssd
Reopen: sudo cryptsetup luksOpen /dev/sda ssd
Run fsck: sudo e2fsck -y /dev/mapper/ssd

Services

Service	Location	Port
Photoprism	`/srv/nas/ametrine/Docker/photoprism/`	Docker
Samba	System service (`smbd`)	445

Other Devices on Same LAN

moon — 192.168.12.223 (Tailscale 100.64.0.6)
homeassistant — Home Assistant OS (Tailscale 100.112.186.90)

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