Solaris support for ext4/ext3/btrfs

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http://serverfault.com – Does anyone know if Solaris 11 (Sparc version) supports mounting ext3/ext4 or even better Btrfs volumes ? Most of the topics I find on the web are quite outdated (2006/2007) and reference old versions of Solaris which were pretty unfriendly to Linux oriented FS. I was hoping that the situation changed, so if you have any info or pointers, I'd really appreciate. Thanks per advance, (HowTos)