Re: [Xen-devel] XCP: pygrub missing ext4 support.

[Michal Novotny <minovotn@xxxxxxxxxx>]

On 06/21/2010 01:26 PM, David Markey wrote:
> Well, which ever way we do it, either using the built in libfsimage 
> ext4 support, or upgrading e2fsprogs, we should choose one?
Well, when using libfsimage *non-e2fsprogs* implementation the ext4 
support have to be added manually but when using e2fsprogs 
implementation (i.e. the version linked with e2fsprogs) I recommend 
upgrading your version of e2fsprogs to the newest/upstream version.
Michal

> On 21 June 2010 10:59, Michal Novotny <minovotn@xxxxxxxxxx 
> <mailto:minovotn@xxxxxxxxxx>> wrote:
>     On 06/19/2010 06:07 PM, Pasi Kärkkäinen wrote:
>
>         On Sat, Jun 19, 2010 at 05:00:57PM +0100, David Markey wrote:
>
>                XCP pygrub should have ext4 support.
>                It currently doesn't because the libfsimage ext2fs-lib
>             module is linked
>                against libext2fs, which doesnt have ext4 support in XCP.
>                Instead, XCP should use the ext2fs module that comes
>             with libfsimage,
>                which has ext4 support.
>                Most new releases of distributions has it as their
>             default filesystem.
>                Most notably, Ubuntu 10.04
>
>
>         Also Fedora 12, Fedora 13, upcoming Debian 6.0 ("Squeeze") and
>         RHEL6.
>
>         -- Pasi
>
>
>     Well, this is not the Xen issue here. We're having this fixed in
>     RHEL-5 by simply reinstalling the e2fsprogs package to the latest
>     one, although in case of RHEL-5 it's been renamed to e4fsprogs.
>     The simplest thing you can do about this is to reinstall the
>     e2fsprogs package on the host machine and it will be working fine
>     - at least it was when I did test it on RHEL-5 some time ago.
>
>     Simply put, reinstalling the e2fsprogs to the latest version will
>     do the job and allow ext4 functionality to pygrub.
>
>     Michal
>
>
>
>                An easy way for the build to use ext2fs instead of
>             ext2fs-lib, is to not
>                have ext2fs/ext2fs.h present.
>                Alternatively this patch hard codes it.
>                (From 4.0)
>                --- a/tools/libfsimage/Makefile         2010-06-19
>             16:52:04.231221516
>                +0100
>                +++ b/tools/libfsimage/Makefile         2010-06-19
>             16:52:08.803250922
>                +0100
>                @@ -1,8 +1,7 @@
>                 XEN_ROOT = ../..
>                 include $(XEN_ROOT)/tools/Rules.mk
>
>                -SUBDIRS-y = common ufs reiserfs iso9660 fat zfs
>                -SUBDIRS-y += $(shell env CC="$(CC)" ./check-libext2fs)
>                +SUBDIRS-y = common ufs reiserfs iso9660 fat zfs ext2fs
>
>                 .PHONY: all clean install
>                 all clean install: %: subdirs-%
>
>
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>
>     -- 
>     Michal Novotny<minovotn@xxxxxxxxxx <mailto:minovotn@xxxxxxxxxx>>, RHCE
>     Virtualization Team (xen userspace), Red Hat
>
>
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--
Michal Novotny<minovotn@xxxxxxxxxx>, RHCE
Virtualization Team (xen userspace), Red Hat


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