Date: Sat, 26 May 2012 00:08:15 +0200 From: Matthew Seaman <matthew@FreeBSD.org> To: Patrick Mahan <mahan@mahan.org> Cc: freebsd-fs@FreeBSD.org Subject: Re: GEOM: ada0: corrupt or invalid Message-ID: <4FC002CF.2080702@FreeBSD.org> In-Reply-To: <4FBFEF94.4020407@mahan.org>
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[-- Attachment #1 --] On 25/05/2012 22:46, Patrick Mahan wrote: > But the question is - "Is this recoverable? Or should we just > re-install everything from scratch?" Re-install. You can't use dd(1) to copy a disk image to a smaller physical drive: the disk size is encoded in various structures on disk and used at boot time; copying a filesystem with dd(8) and truncating it (even if the used space is less than the target partition size) just doesn't work. If you have work you've done on the original disk images that you'ld like to copy to the new ones, then use a file-system level copy program. There are any number of suitable candidates, most of which have the ability to write across a network link if needed: * dump(8) and restore(8) * rsync(1) * tar(1) * find(1) and cpio(1) Even cp(1). Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. PGP: http://www.infracaninophile.co.uk/pgpkey [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.16 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk/AAuUACgkQ8Mjk52CukIywngCdEXdWxFvk4AeSWiAdPY0lqTlP sAQAn2dHSeh8GjgdijH1qrKNdnCn1y5T =y+8K -----END PGP SIGNATURE-----help
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