Routine system maintenance

CatOS does not need frequent “cleanup” resets. Reliable maintenance consists of complete upgrades, checking failed services and logs, monitoring storage, retaining useful package cache, and keeping a recovery path.

Complete upgrades with:

sudo pacman -Syu

Check failed system and user services:

systemctl --failed
systemctl --user --failed

Inspect current-boot warnings and a specific service:

journalctl -b -p warning
journalctl -b -u service-name

Check storage:

df -h
lsblk -f
sudo btrfs filesystem usage /

Btrfs data, metadata, and unallocated space are not fully represented by a simple df reading.

Manage the pacman cache with pacman-contrib:

sudo paccache -r
du -sh /var/cache/pacman/pkg

Review orphaned packages before removing anything:

pacman -Qdtq

Inspect and limit old journal data:

journalctl --disk-usage
sudo journalctl --vacuum-size=500M

Check the running kernel and installed module trees:

uname -r
ls /usr/lib/modules

Find package-manager configuration updates:

sudo find /etc -name '*.pacnew' -o -name '*.pacsave'

Compare and merge them instead of overwriting files blindly.

For Btrfs, inspect or run a scrub when appropriate:

sudo btrfs scrub status /
sudo btrfs scrub start -Bd /

Scrub produces sustained I/O, is not a backup, and can repair data only when a redundant good copy exists.