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

[David Markey <admin@xxxxxxxxxxx>]

Well, which ever way we do it, either using the built in libfsimage ext4 support, or upgrading e2fsprogs, we should choose one?

On 21 June 2010 10:59, Michal Novotny <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>, RHCE
Virtualization Team (xen userspace), Red Hat

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