Hi Russell, all of the information you need should be available from the 'mount' and 'btrfs subvol list' commands. Though I realise it can be awkward to parse it out of there, this will be the only way to get accurate information in the face of bind-mounts and other fancy tricks. One other datapoint that you might be able to use is that btrfs, I believe, always shows inode number 256 for subvolumes in 'stat'. Keep in mind there that the root subvolume is, as the name implies, also technically a subvolume.
Regards, Bart On Sat, Dec 29, 2012 at 6:04 AM, Russell Coker <russell+bt...@coker.com.au> wrote: > What's a good way of determining the mount point for a BTRFS filesystem in a > shell script? > > /home/user might be a filesystem, a directory under a filesystem /home, a > directory under a subvol /home of /, a subvol of /, or a subvol of the /home > filesystem. How do I determine which it is? > > -- > My Main Blog http://etbe.coker.com.au/ > My Documents Blog http://doc.coker.com.au/ > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
