On Mon, May 05, 2014 at 02:32:53PM -0400, Theodore Ts'o wrote: > > BTW, the current trend is to use GPT partition types to identify > > purpose of the partition filesystem (for example extra GUID for > > /home). It's FS independent solution and it allows use the right > > filesystems for the right mountpoints. It's very attractive for > > example for virtual images where you don't have to setup fstab and > > identify FS, but you still have (for example) /home on the right > > place. > > But a partition only gets one GUUID and one partition type. So are > you saying that the GUUID partition type would be used to indicate the > concept of "this is the file system for /home", *instead* of "this is > an btrfs file system" or "this is an ext4 file system"? Yes, GPT partition has two UUIDs, - UUID = an unique partition identifier - GUID = partition type identifier I talked about the type (GUID). Note that this concept is just another point of view how to mount partitions, I don't think it will be a mainstream solution for standard machines. Now it's supported by systemd. More details: http://www.freedesktop.org/wiki/Specifications/DiscoverablePartitionsSpec/ For old good fstab you can use PARTUUID= to identify partitions and to bypass filesystem specific identifiers. In this case it's unique partition identifier, no partition type. Karel -- Karel Zak <kzak@xxxxxxxxxx> http://karelzak.blogspot.com -- 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
