docs/reference: run.md update confusing example name

This example was mounting `/dev/zero` as `/dev/nulo` inside the container.
The `nulo` name was intended to be a "made up / custom" name, but various
readers thought it to be a typo for `/dev/null`.

This patch updates the example to use `/dev/foobar` as name, which should
make it more clear that it's a custom name.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2022-10-11 00:29:42 +02:00
parent 8d807a045c
commit aea2a8c410
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1 changed files with 6 additions and 5 deletions

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@ -591,14 +591,15 @@ retrieve the container's ID once the container has finished running.
### <a name=device></a> Add host device to container (--device) ### <a name=device></a> Add host device to container (--device)
```console ```console
$ docker run --device=/dev/sdc:/dev/xvdc \ $ docker run -it --rm \
--device=/dev/sdd --device=/dev/zero:/dev/nulo \ --device=/dev/sdc:/dev/xvdc \
-i -t \ --device=/dev/sdd \
ubuntu ls -l /dev/{xvdc,sdd,nulo} --device=/dev/zero:/dev/foobar \
ubuntu ls -l /dev/{xvdc,sdd,foobar}
brw-rw---- 1 root disk 8, 2 Feb 9 16:05 /dev/xvdc brw-rw---- 1 root disk 8, 2 Feb 9 16:05 /dev/xvdc
brw-rw---- 1 root disk 8, 3 Feb 9 16:05 /dev/sdd brw-rw---- 1 root disk 8, 3 Feb 9 16:05 /dev/sdd
crw-rw-rw- 1 root root 1, 5 Feb 9 16:05 /dev/nulo crw-rw-rw- 1 root root 1, 5 Feb 9 16:05 /dev/foobar
``` ```
It is often necessary to directly expose devices to a container. The `--device` It is often necessary to directly expose devices to a container. The `--device`