Messages in this thread | | | From | "Matt Reuther" <> | Subject | Re: File System conversion -- ideas | Date | Tue, 01 Jul 2003 12:04:37 -0400 |
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It seems like the loopback device would be useful for this. You can move all of you stuff into a mounted loopback device with the new fs. Is there not some utility to take a filesystem image from inside an fs, and overwrite that fs with it. It would be lots of sector-to-sector shuffling, but it would be cleaner than trying to convert.
I guess you could try overlaying the old and new filesystems by virtualizing the inodes, superblocks, directories, and other stuff in RAM, but you still have to write it to disk, and some of the metadata from one fs will collide with the other one. The superblock for ext2fs needs to written to several fixed places on the filesystem, which might also be needed by reiserfs/xfs/whatever.
Matt
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