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authorGiuseppe Scrivano <gscrivan@redhat.com>2019-05-09 11:03:11 +0200
committerGiuseppe Scrivano <gscrivan@redhat.com>2019-05-17 20:48:26 +0200
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troubleshooting.md: add note about updating subuid/subgid
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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diff --git a/troubleshooting.md b/troubleshooting.md
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@@ -247,6 +247,11 @@ would potentially allow one user to attack another user.
You could also use the usermod program to assign UIDs to a user.
+If you update either the /etc/subuid or /etc/subgid file, you need to
+stop all running containers and kill the pause process. This is done
+automatically by the `system migrate` command, which can also be used
+to stop all the containers and kill the pause process.
+
```
usermod --add-subuids 200000-201000 --add-subgids 200000-201000 johndoe
grep johndoe /etc/subuid /etc/subgid