Files
doc/nuc
Julien LutranandClaude Opus 5 58dcaa5d41 nas: new storage host on A1SAi-2750F — 4 TB off USB onto SATA
Builds the box that ends the usb4t dropouts: the JMicron bridge was the
least reliable device in the setup and it held the intended off-site copy
of ks4. The 4 TB now sits on direct SATA as pool `tank`.

- OS on mdraid RAID1 across two 120 GB SSDs (Intel 330 + Toshiba Q300),
  both ESPs bootable; `incus` ZFS mirror on their tails, ~22% left
  unallocated as over-provisioning
- media at /export/media, exported read-only over NFSv4 to nuc
- transmission-bt moves here (its WireGuard tunnel is in-container, so
  ks4 needed no change) and writes to the dataset locally
- backup pools nucbackup / ks4backup / nasbackup
- monitoring live: msmtp (submission+auth, verified 250), zed with
  NOTIFY_DATA, zpool-health.sh every 15 min, smartd on all three disks

Traps recorded because none of them point at their own cause: booting
with the display active kills the i915 probe and wedges incus; d-i picks
grub-pc vs grub-efi from how the installer booted; `incus storage create`
hangs forever on a mountpoint=none dataset; the BMC is deliberately never
cabled, so there is no out-of-band console.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-30 23:53:30 +02:00
..

Homelab: nuc

Incus host on the LAN.

  • Debian 13, Intel Alder Lake-N (iGPU i915, shared by both Jellyfin containers) — bare-metal reinstall: nuc-install.md
  • Instances are bridged onto the LAN (192.168.0.0/24)
  • USB 4 TB WD Red: ZFS pool usb4tusb4t/backup/backup (incus exports, nuc/ + ks4/ subdatasets, 1 TB quota) and usb4t/media/srv/media (media library, shared into containers via shift=true disk devices; works because ZFS ≥ 2.2 supports idmapped mounts)
  • ⚠️ The USB enclosure drops off the bus periodically and suspends the pool, which silently breaks the nightly replication — symptoms, recovery and fixes: usb4t-dropouts.md
  • Backups: all local instances replicated to the USB pool (/root/scripts/incus-copy.sh -p backup -s nucbackup; replicas stopped, autostart off) — see nuc-install.md; ks4 replicas pulled into pool ks4backup — see ks4/incus-copy.md

Instances

Name IP Doc Features
jellyfin-server 192.168.0.5 unprivileged, autostart; iGPU render node (gpu device, render gid) for QSV/VAAPI transcoding; /srv/media disk device (shift=true); proxy device → host :8096
jellyfin-client 192.168.0.6 privileged, autostart; full iGPU (gpu device, gid 44) → HDMI kiosk (cage + Jellyfin Media Player); custom raw.lxc (bind /dev/snd, /dev/input, host /run/udev); Pioneer USB audio as ALSA default; FR keymap; go-librespot Spotify Connect ("Pioneer A-70")
transmission-bt 192.168.0.7 unprivileged, autostart; always-on WireGuard full tunnel → ks4 (egress = 193.70.35.17, kill switch: no default route); /srv/media disk device (shift=true), downloads to /media/downloads; web UI :9091 (LAN only)
blocky 192.168.0.254 unprivileged, autostart; DNS ad-blocker
privoxy 192.168.0.11 unprivileged, autostart; filtering HTTP proxy
homeassistant (stopped) virtual machine, 50 GiB root disk on pool data