Btrfs: Subvolumes and snapshots

Posted Jan 10, 2014 11:30 UTC (Fri) by jezuch (subscriber, #52988)
In reply to: Btrfs: Subvolumes and snapshots by MattJD
Parent article: Btrfs: Subvolumes and snapshots

> Brtfs wiki describes a method to convert an ext4 filesystem to btrfs without data loss

That's a neat trick enabled by the COW nature of btrfs and I wonder if there is a possibility to add support for more filesystems beside ext4. I'm especially interested in XFS as that's what I'm running on my systems :)

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Btrfs: Subvolumes and snapshots

Posted Jan 10, 2014 15:10 UTC (Fri) by MattJD (subscriber, #91390) [Link]

>> Brtfs wiki describes a method to convert an ext4 filesystem to btrfs without data loss
>That's a neat trick enabled by the COW nature of btrfs and I wonder if there is a possibility to add support for more filesystems beside ext4. I'm especially interested in XFS as that's what I'm running on my systems :)

The tool uses a userspace library to read the filesystem and setup Btrfs. Adding support for XFS (or any other fs) should mostly involve getting a user space library to read XFS and calling the appropriate functions from the conversion tool to setup Btrfs.