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Merge pull request #4157 from kinvolk/rata/idmap-errormsg

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libct: Improve error msg when idmap is not supported
This commit is contained in:
lfbzhm
2023-12-29 22:48:53 +08:00
committed by GitHub
parent c48c428b1d a7c3e07c8f
commit 35988abe20
1 changed files with 6 additions and 1 deletions
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libcontainer/mount_linux.go
+6 -1
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@@ -258,7 +258,12 @@ func mountFd(nsHandles *userns.Handles, m *configs.Mount) (*mountSource, error)
Attr_set: unix.MOUNT_ATTR_IDMAP,
Userns_fd: uint64(usernsFile.Fd()),
}); err != nil {
return nil, fmt.Errorf("failed to set MOUNT_ATTR_IDMAP on %s: %w", m.Source, err)
extraMsg := ""
if err == unix.EINVAL {
extraMsg = " (maybe the filesystem used doesn't support idmap mounts on this kernel?)"
}
return nil, fmt.Errorf("failed to set MOUNT_ATTR_IDMAP on %s: %w%s", m.Source, err, extraMsg)
}
} else {
var err error