Verified diagnostic signature
Boot is delayed or degraded by a device, mount, or unit dependency.
Match output from systemd, understand the likely cause, then continue with sourced, read-only checks.
- Confidence
- high
- Platforms
- linux
- Verified
- 2026-07-24
Recognized output
Signature matched locally
Timed out waiting for deviceOneLiners matches this pattern in your browser. Your pasted output is not stored or indexed.
Likely causes
What usually produces this signal
- Missing device
- Incorrect fstab entry
- Slow network mount
- Filesystem check failure
Safe next checks
Collect evidence before changing the system
Show the boot critical path and activation delays
systemd-analyze critical-chainThe output matches the expected target and exits without an error.
Show kernel and service warnings from the current boot
journalctl -b -p warning..alert --no-pager -o short-isoThe output matches the expected target and exits without an error.
List failed systemd services
systemctl --failedThe output matches the expected target and exits without an error.