nixos/stage-1.init.sh: Prevent unsafe remount and correct fstab syntax #358035
+10
−3
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
We should not remount all filesystem types since not all filesystems are safe to remount and some (nfs) return errors if remounted with certain mount options.
github-actions
bot
added
6.topic: nixos
Princemachiavelli
force-pushed
the
jhoffer/only_remount_bind_mounts
branch
from
0c9eaf4
to
e16f61d
Compare
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Outdated suggestions cannot be applied.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.
Description
The legacy stage-1 generates the
/etc/fstabfrom fsInfo but incorrectly adds a trailing,character to the mount options. While does not appear to have caused any issue yet we should trim the trailing,to be safe.Generated
/etc/fstabduring stage-1:stage-1 also currently remounts all fileSystems as a fix for busybox not respecting mount options on bind (and rbind) mount points. This results in a unintended errors during stage-1 if a file system such as NFS is mounted which does allow remounting with all of the original options present (i.e some options can only be set during the initial mount).
Error during stage-1 mounting NFS share:
Things done
Built and ran
legacyPackages.x86_64-linux.nixosTests.early-mount-options.nix.conf? (See Nix manual)sandbox = relaxedsandbox = truenix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage./result/bin/)