Howto convert XFS partition to Reiserfs, without data loss?

[swagr]

My "/" and "/home" are XFS. "/boot" is ext2.
I want to convert "/" and "/home" to Reiserfs. What's the best way to do it without losing data?

Anyone try this?
http://tzukanov.narod.ru/convertfs/
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[rfru]

Edit: the program seemed to work fine on a conversion of /home from ext3 to reiserfs

[delta407]

The best way to do this is, of course, get a large temporary holding place, copy everything there, and copy everything back. It's slow, but as safe as you're going to get.
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