Subject: Re: Endian-ness on ffs
To: Jon Lindgren <email@example.com>
From: Miles Nordin <carton@Ivy.NET>
Date: 12/08/1999 14:57:04
On Wed, 8 Dec 1999, Jon Lindgren wrote:
> I create a filesystem on, say, an i386 platform, will I be able to
> [theoretically] mount and use the filesystem on another system of
> different endian-ness (say, a sparc)?
The filesystem, yes. The disklabel, no. You must come up with a way to
transfer the disklabel to your SPARC in text format, and rewrite the
actual label on the disk (risky, perhaps, esp. with ``extended''
I have a couple lines of code that make disklabel read other-endiness
labels and then load them into core, without modifying the disk. Thus,
your disk is not partitioned at boot. you say, 'disklabel -l' and the
partitions show up, _provided_ they are in the standard BSDish form, and
not MBR or Mac or Weird format.
It's of limited use. the main value is, ``recognize native at boot,
recognize all others with a userland tool.'' it's the xsane 2n vs. n^2
idea. i'd be happy to send you what i have, but it's very rough.
Miles Nordin / v:1-888-857-2723 fax:+1 530 579-8680
555 Bryant Street PMB 182 / Palo Alto, CA 94301-1700 / US