Andrew Wright wrote: > > Hi All; > > I want to migrate a system from OpenBSD 4.2 (ie; the current version) > to FreeBSD (7.0). I have poked around on the archives a little > to determine how best to do this, and I want to make sure that > my understanding (summarized below) is indeed correct. If I am > asking these questions on the wrong list (potentially likely for > the AMD specific questions) then please let me know: > > > Filesystem stuff: > - it appears that FreeBSD and OpenBSD use the same partition > table format. Is this true? If so, I can potentially avoid > rebuilding an entire disk if I am right that ...
No, I don't think that's true. In any case, you can verify it by booting a live-CD of FreeBSD and trying it. > If both of these are true, I can simply install FreeBSD over > top of the OpenBSD /, /var and /usr partitions, and then be > able to mount the old /home. Is this something people do? If you delete everything from all directories except /home, it might work. Otherwise, the risk of getting mixed binaries, libraries and scripts from both systems is too great. > Processor stuff: > - The machine of interest has an AMD64 processor. I have seen > several references to running Linux emulation on an AMD processor, > but I would like to confirm that this is true while running the > 64-bit version of the OS. In other words: > - with a 64-bit installation (amd64) of FreeBSD 7.0, emulation > of 32-bit Linux binaries (notably Matlab, but possibly other > software as well) is possible, and indeed a reasonably > well-known way of proceeding. I think 32-bit Linux binaries should be supported on 64-bit FreeBSD alongside 32-bit FreeBSD binaries.
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