# Common errors and troubleshooting
# Recommendation
If you think you have a problem with your XOA, start by typingxoa check
command in your terminal:
$ xoa check
✔ Node version
✔ Disk space for /var
✔ Disk space for /
✔ XOA version
✔ xo-server config syntax
✔ Appliance registration
✔ Internet connectivity
If the result you have is completely different from that, or if error messages are displayed, lost packets, etc., you have, indeed, a problem. The next step should be to check in this document if there is an existing troubleshooting for the problem you have.
TIP
You can also access the log by using this command: $ tail -f /var/log/syslog
(learn more (opens new window))
# General
- Empty page after login (opens new window)
- Can't migrate XOA (opens new window)
- Can't boot XOA (opens new window)
- Network issues (opens new window)
- Out of memory (opens new window)
- Transparent proxy and updater (opens new window)
- SSL self-signed certificate expired (opens new window)
- User authentication (opens new window)
# Backup troubleshooting
- Unhealthy VDI chain (opens new window)
- SR_backend_failure_44 (opens new window)
- Could not find the base VM (opens new window)
# You haven't found a solution here?
Open a ticket concerning your issue on your personal space here (opens new window)