Re: [Xen-devel] [PATCH 1/2] libfsimage

[John Levon <levon@xxxxxxxxxxxxxxxxx>]

On Tue, Oct 31, 2006 at 09:54:38AM +0000, Tim Deegan wrote:

> > It also adds Solaris UFS support. The current plugins are all based on
> > slightly modified Grub legacy code (so far it's taken about an hour to
> > get a new FS from the grub code working).
> 
> >From a quick glance through, the changes you've made to the grub fs code
> seem to be mostly eliminating grub's world of static block-access
> variables and functions.  Could that be abstracted out into a wrapper
> file that would let any grub filesystem code be used verbatim?  That
> would reduce the maintenance load even further (and give us FAT and
> ISO9660 for free).

That was my initial aim, but translating the FSYS_BUF define into the
file-local buffer seemed non-trivial. And I had to make some changes to
allow for 64-bit usage; a lot of the grub legacy code is not 64-bit
clean :/

I would expect FAT and iso9660 (and ZFS) to be just easy as as the
others though, around an hour's work to fix and test...

> Alternatively, how far away from stable enough are the grub2 drivers?

I spoke to the grub devs; they're still not recommending people use
grub2. reiserfs support isn't even integrated and has only just had
patches posted, and no-one's ported ZFS yet...

regards,
john

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