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CERBERUS REBUILD CONTEXT (PASTE THIS)
I have reinstalled CERBERUS (Celeron NUC) and need to reconnect it to my existing system.
System layout
ANNIE (192.168.50.172) = main machine (client)
CERBERUS (192.168.50.10) = storage server (NFS)
Two drives:
STORAGE (primary)
ARCHIVE (secondary)
Goal
Mount both drives on CERBERUS at:
/srv/STORAGE
/srv/ARCHIVE
Export them via NFS to ANNIE
ANNIE mounts them at:
/mnt/STORAGE
/mnt/ARCHIVE
Known disk info (from previous system)
STORAGE UUID: 9f9c11ef-318b-4d39-b544-8fef87049095
ARCHIVE UUID: 76ad1e62-25d3-4bf7-840d-aa6c09658e7a
Expected CERBERUS config
/etc/fstab
UUID=9f9c11ef-318b-4d39-b544-8fef87049095 /srv/STORAGE ext4 defaults 0 2
UUID=76ad1e62-25d3-4bf7-840d-aa6c09658e7a /srv/ARCHIVE ext4 defaults 0 2
/etc/exports
/srv/STORAGE 192.168.50.172(rw,sync,no_subtree_check)
/srv/ARCHIVE 192.168.50.172(rw,sync,no_subtree_check)
Requirements
Use stable mount points (/srv/...)
Use labels or UUIDs (no /media/...)
Keep it minimal, no desktop auto-mounting
What I need
Walk me step-by-step to:
Mount drives correctly
Set up fstab
Install + configure NFS
Verify from ANNIE
What this gives you
When you paste that:
I instantly know your topology ✅
I know your disk IDs ✅
I know your mount philosophy ✅
We skip all exploration ✅
Optional (keep with your backup)
You already saved:
/mnt/STORAGE/system-backup/cerberus-rebuild.txt
That file = ground truth
If you want next:
I can give you a 10-minute rebuild checklist
or move into rsync cleanup plan
Credits Used: 15.8
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since we have made those good nano changes on cerberous ... and will be doing a clean install later it seems a shame to have to do that again .. should we save those bits of the setup .. ?
RouteLLM
Routing to GPT-5.3 Instant
Yes — and this is exactly the right move.
You don’t want to remember this — you want to replay it.
✅ What to save (minimal but complete)
You only need to preserve 3 things from CERBERUS:
1. Mount logic (fstab)
bash
Copy
cat /etc/fstab
2. NFS export config
bash
Copy
cat /etc/exports
3. Drive identity (for sanity later)
bash
Copy
lsblk -f
✅ Save them to STORAGE (so they survive reinstall)
On CERBERUS:
bash
Copy
mkdir -p /srv/STORAGE/system-backup
Then:
bash
Copy
cat /etc/fstab > /srv/STORAGE/system-backup/cerberus-fstab.txt
cat /etc/exports > /srv/STORAGE/system-backup/cerberus-exports.txt
lsblk -f > /srv/STORAGE/system-backup/cerberus-disks.txt
✅ Optional (very useful)
Also save:
bash
Copy
hostnamectl > /srv/STORAGE/system-backup/cerberus-system.txt
ip a > /srv/STORAGE/system-backup/cerberus-network.txt
🧠Why this works
After reinstall you won’t:
guess UUIDs ❌
guess mount points ❌
guess exports ❌
You just:
reinstall OS
open these files
copy back into place
Done in minutes.
✅ Even better (one-file version)
If you want a single reference:
bash
Copy
(
echo "=== FSTAB ==="
cat /etc/fstab
echo
echo "=== EXPORTS ==="
cat /etc/exports
echo
echo "=== DISKS ==="
lsblk -f
) > /srv/STORAGE/system-backup/cerberus-rebuild.txt
✅ Result
You now have a rebuild blueprint.
👉 Do you want next:
a post-reinstall checklist (5 commands to restore everything)
or move into rsync cleanup plan
Credits Used: 13.49
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📔 Master Field Notes: The NUC Mesh System
Version: 1.0
Machines: ANNIE (i7 NUC9), CERBERUS (Celeron NUC), PI-GATEWAY (Pi 5)
1. System Architecture: The "Distributed Cluster"
Instead of thinking of these as three separate PCs, they function as a single unit:
ANNIE (The Cockpit): Intel NUC9i7QNX. The "Power Engine." Handles all visuals and the primary user interface.
CERBERUS (The Storage): Celeron NUC. The "Limb." Tucked away, dedicated to the 2 x HDD movie/file archive.
PI-GATEWAY (The Nerve Center): Raspberry Pi 5. Handles DHCP and internet gateway duties.
2. Graphics Stability (Primary Fix)
ANNIE initially suffered from "Jumping Windows" and transparency glitches due to a conflict between the NVIDIA driver and the XFCE compositor.
The Philosophy: "Horses that eat must pull." No-frills reliability over fancy effects.
The Fix: Disable the Compositor permanently.
Manual recovery: xfwm4 --replace --compositor=off &
Permanent Fix: Settings -> Window Manager Tweaks -> Compositor -> Untick "Enable display compositing".
Hardware Profile:
GPU: NVIDIA GTX 1650 (ASUSTeK).
Driver: Proprietary NVIDIA (Loaded via ubuntu-drivers autoinstall).
Monitor Logic: Dedicated GPU ports only. Use a $10 "DisplayPort to HDMI" adapter for secondary screens.
3. Remote Management (The "Mirror")
We use a Cockpit & Broadcaster model to eliminate the need for three keyboards/mice.
Protocol: VNC (Port 5900).
Setup on Broadcaster (CERBERUS):
Tool: x11vnc (shares the actual physical screen :0).
Set Password: x11vnc -storepasswd
Broadcast Command: x11vnc -auth guess -forever -loop -noxdamage -rfbauth ~/.vnc/passwd -shared &
Setup on Cockpit (ANNIE):
Tool: Remmina with VNC plugin.
Usage: Open Remmina, select VNC, enter IP (192.168.50.10), and save credentials.
4. The SSH Mesh (The "Nervous System")
All machines are linked via SSH Keys for password-less, encrypted communication.
ANNIE IP: 192.168.50.172
CERBERUS IP: 192.168.50.10
Key Config: Created ~/.ssh/config on all machines to use aliases (e.g., typing ssh cerberus instead of the full IP).
5. Hardware Manifest (ANNIE)
Keep this for driver/kernel troubleshooting:
Kernel: 6.17.0-20-generic (Linux Mint 22.3 Zena / Ubuntu 24.04 base).
CPU: Intel Core i7-9750H (6-core/12-thread).
Memory: 16GB.
OS Drive: 1TB Samsung NVMe SSD 970 EVO.
Network: Intel Wi-Fi 6 AX200 & Dual Intel Gigabit Ethernet.
6. Maintenance Rule #1
Timeshift is the Insurance Policy.
Before any major "maintenance" or "fiddling," run a Timeshift snapshot. If the windows start jumping again or the session breaks, roll back to the "Post-Driver/No-Compositor" snapshot.
