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Fix tutorial for rootless mode

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Users have gotten confused when attempting the introduction turturial in
rootless mode.  Explain that they have to `buildah unshare` before
mounting the image.

Fixes: https://github.com/containers/buildah/issues/2833

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh
2021-02-10 15:35:32 -05:00
parent 0508fba064
commit 7775e0f751
1 changed files with 5 additions and 0 deletions
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docs/tutorials/01-intro.md
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@@ -100,6 +100,11 @@ Nope. This really is empty. The package installer `dnf` is not even inside this
# scratchmnt=$(buildah mount $newcontainer)
Note: If attempting to mount in rootless mode, the command fails. Mounting an image needs to be done in a different mount namespace. Enter the mount namespace by executing the `buildah unshare` command. See buildah-mount(1) man page for more information.
$ buildah unshare
# scratchmnt=$(buildah mount $newcontainer)
By echoing `$scratchmnt` we can see the path for the [overlay image](https://wiki.archlinux.org/index.php/Overlay_filesystem), which gives you a link directly to the root file system of the container.
# echo $scratchmnt