meta-ibm: first-boot-disable-ipmi-net: Fix unit condition

The [Service] section specifies:

```
ExecStart=/bin/touch /var/lib/ipmi-net-disable-one-time
```

However, the [Unit] section specifies the following condition:

```
ConditionFileNotEmpty=!/var/lib/ipmi-net-disable-one-time
```

The documentation for ConditionFileNotEmpty[1] states:

> ConditionFileNotEmpty= is similar to ConditionPathExists= but verifies
> that a certain path exists and refers to a regular file with a
> non-zero size.

[1]: https://www.freedesktop.org/software/systemd/man/systemd.unit.html#ConditionFileNotEmpty=

And the documentation for `touch`[2] states:

> A FILE argument that does not exist is created empty, unless -c or -h
> is supplied.

[2]: https://www.man7.org/linux/man-pages/man1/touch.1.html

Neither `-c` nor `-h` are supplied, therefore the ExecStart= directive
will create an empty file. As the ConditionFileNotEmpty= directive is
negated the condition will always pass: Either the file doesn't exist,
or it does exist and is empty. Therefore, as configured, this unit
always runs.

Always running the unit is counter to its 'one-time' name. Switch to
`ConditionPathExists=`[3] to enforce the one-time nature.

[3]: https://www.freedesktop.org/software/systemd/man/systemd.unit.html#ConditionPathExists=

Change-Id: I1a8418a03c4fb9c6754f72f8651384b2f7e17715
Signed-off-by: Andrew Jeffery <andrew@aj.id.au>

0 files changed, 0 insertions, 0 deletions