On Sex, 2010-02-26 at 14:52 +0100, Karel Zak wrote: > Hi Andreas, > The TYPE is used by mount(8) or fsck(8) if the fstype is not > explicitly defined by user. > > I don't know if anything depends on the TYPE, but I don't see > /sbin/mount.zfs, so it seems that zfs-fuse guys use something other. Right, ZFS filesystems are mounted in zfs-fuse automatically when a ZFS pool is imported into the system or manually with the "zfs" command. The latter calls into the zfs-fuse daemon, which issues a fuse_mount() call. This mimics the behavior in the Solaris ZFS implementation. I would expect the /sbin/mount.zfs command to only work when the mountpoint property of a ZFS filesystem is set to 'legacy', otherwise ZFS will usually mount the filesystem by itself in the proper place (which depends on the mountpoint property and the dataset hierarchy within the pool). Most importantly, I don't think it would be easy to determine which filesystems are inside of a ZFS pool. This would require traversing the dataset hierarchy within a pool, which is very difficult to implement if you don't use the existing ZFS code, especially when you have RAID-Z/Z2/Z3 pools. We'd be better off using the 'zdb' command (which contains an entire implementation of ZFS's DMU code in userspace). As for fsck, there is none for ZFS and I doubt there will be such a tool in the foreseeable future... Usually one would use 'zpool scrub' to verify the consistency of the pool. Not sure if this helps or not for this discussion (more information is never bad, right?) :-) Cheers, Ricardo -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
