Re: [PATCH] Install to LVM PVs

[Andrei Borzenkov]

В Fri, 27 Sep 2013 14:48:33 +0200
Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden> пишет:

> On 27.09.2013 12:39, Gabriel de Perthuis wrote:
> > Le 26/09/2013 10:53, Vladimir 'φ-coder/phcoder' Serbinenko a écrit:
> >> On 25.09.2013 14:39, Gabriel de Perthuis wrote:
> >>> Hello,
> >>> This patch lets grub install to a reserved area in LVM physical volumes.
> >>> These bootloader areas can be created with LVM 2.02.99 and the
> >>> --bootloaderareasize argument to pvcreate and vgconvert.
> >>> I tested it in QEMU, installing to and booting a disk that contains a PV
> >>> and no partition table.
> >>>
> >> This is not how the use of this area was imagined. There are couple of
> >> subtleties which your patch didn't take in account.
> >> Currently there is joint developpement with LVM guys but it wasn't
> >> published yet.
> > 
> > For anyone else who may be interested, apparently patches exist and are
> > waiting for Peter Rajnoha to finish them.  They haven't been posted or
> > discussed publicly and I've never seen them.
> > 
> > According to Vladimir:
> >> the zone will be subdivided to cover more cases and the agreement was
> > to use "pvs" to get offsets rather than having own code for this
> > 
> > As shipped in 2.02.99, pvs exposes exactly one ba_start/ba_size area.
> > Other areas will have to use extra extension fields and extra fields in
> > the pvs output, to be compatible with released versions of LVM.
> No, you didn't understand: this area will have another header, GRUB one
> which will subdivide it. LVM gives us area and we take care of subdivision.

Did anything happen with it? Do you have any pointers to suggested
design?

> > Parsing pvs output would be easy, and will behave exactly the same as
> > this patch.
> > 
> 
> > _______________________________________________
> > Grub-devel mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/grub-devel
> > 
> 
>

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