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Add --rm to busybox container

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Since it is meant to be just a temporary container. Also, put `$PWD` into double quotes to prevent the expansion of multiple parameters if it has space.
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Felipe Santos authored and Billy Tat committed 2021-12-08 16:03:49 -08:00
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content/rancher/v2.6/en/installation/other-installation-methods/single-node-docker/single-node-upgrades/_index.md
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@@ -80,7 +80,7 @@ During upgrade, you create a copy of the data from your current Rancher containe
```
docker run --volumes-from rancher-data -v $PWD:/backup busybox tar zcvf /backup/rancher-data-backup-<RANCHER_VERSION>-<DATE>.tar.gz /var/lib/rancher
docker run --volumes-from rancher-data -v "$PWD:/backup" --rm busybox tar zcvf /backup/rancher-data-backup-<RANCHER_VERSION>-<DATE>.tar.gz /var/lib/rancher
```
**Step Result:** When you enter this command, a series of commands should run.