[ansible][qemu-user-static] Force automount to mount /proc/sys/fs/bin… #152
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…fmt_misc systemd is kind of taking over that directory. While Ubuntu seems to handle this just right, Amazon Linux 2 does not, essentially, the directory is handled by automount, but is not mounted and onl;y ends up mounted once we try to access it with `ls` or such. This gets us to end up in a situation where qemu-user-static has ran, but its config gets overridden. I did not manage to get this to work properly on AL2, but we can trick it by "pre-warming" the mount by running a `ls /proc/sys/fs/binfmt_misc` as a pre-exec-start step (ignoring failures). Tried this on Ubuntu host, and there were still happy. Signed-off-by: Manu Bretelle <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
…fmt_misc
systemd is kind of taking over that directory. While Ubuntu seems to handle this just right, Amazon Linux 2 does not, essentially, the directory is handled by automount, but is not mounted and onl;y ends up mounted once we try to access it with
lsor such. This gets us to end up in a situation where qemu-user-static has ran, but its config gets overridden.I did not manage to get this to work properly on AL2, but we can trick it by "pre-warming" the mount by running a
ls /proc/sys/fs/binfmt_miscas a pre-exec-start step (ignoring failures).Tried this on Ubuntu host, and there were still happy.
Signed-off-by: Manu Bretelle [email protected]