> Source: [sk170396](https://support.checkpoint.com/results/sk/sk170396)

# sk170396 - "udevd[PID]: add_to_rules: unknown key 'SUBSYSTEMS' " messages appear in /var/log/messages

| Property | Value |
|----------|-------|
| Solution ID | sk170396 |
| Date Created | 2020-11-09 |
| Last Modified | 2020-11-11 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R81 (EOS) |
| OS | Gaia |

## Symptoms

- "`udevd[PID]: add_to_rules: unknown key 'SUBSYSTEMS' `" warning messages may appear in `/var/log/messages` file.

## Solution

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