Btrfs devel - May 2013 - Finding the objid of a subvolume on an unmounted filesystem

Hello,

I would like to" btrfs restore" a broken btrfs filesystem before I
attempt to recover it. However, I only need to recover a subvolume
inside of it. It seems the -r option should do the job, but I do not
know the objid number of the subvolume I want, only the path. Is there a
way to know the objid of a subvolume given its path, without mounting
the filesystem?

Thanks,

Cesar



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