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From: Michal Novotny <minovotn@redhat.com>
To: admin@dmarkey.com
Cc: xen-devel@lists.xensource.com
Subject: Re: XCP: pygrub missing ext4 support.
Date: Mon, 21 Jun 2010 13:58:35 +0200	[thread overview]
Message-ID: <4C1F53EB.5020700@redhat.com> (raw)
In-Reply-To: <AANLkTinLksHYx8lT2z6Lf41PkfhLAKaghg_gyeN9BK_r@mail.gmail.com>

David, this is totally xen independent thing. This is based on the 
operating system's version of e2fsprogs installed and provided if there 
are systems having e2fsprogs version *with* the ext4 support it will be 
working fine for them.

Michal

On 06/21/2010 01:55 PM, David Markey wrote:
> Well whichever way we go, could we get some movement before XCP 0.5 final?
>
> On 21 June 2010 12:48, Michal Novotny <minovotn@redhat.com 
> <mailto:minovotn@redhat.com>> wrote:
>
>     On 06/21/2010 01:38 PM, David Markey wrote:
>
>         The *non-e2fsprogs* implementation, i.e.
>         tools/libfsimage/ext2fs/fsys_ext2fs.c has ext4 support already.
>
>
>     Oh, ok, provided the fact that e2fsprogs implementation is being
>     just simply linked to the e2fsprogs library upgrading the package
>     to the newest/upstream package is the simplest thing you could do.
>
>     Michal
>
>
>
>         On 21 June 2010 12:29, Michal Novotny <minovotn@redhat.com
>         <mailto:minovotn@redhat.com> <mailto:minovotn@redhat.com
>         <mailto:minovotn@redhat.com>>> wrote:
>
>            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@redhat.com <mailto:minovotn@redhat.com>
>         <mailto:minovotn@redhat.com <mailto:minovotn@redhat.com>>
>         <mailto:minovotn@redhat.com <mailto:minovotn@redhat.com>
>
>         <mailto:minovotn@redhat.com <mailto:minovotn@redhat.com>>>> 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@redhat.com
>         <mailto:minovotn@redhat.com>
>         <mailto:minovotn@redhat.com <mailto:minovotn@redhat.com>>
>         <mailto:minovotn@redhat.com <mailto:minovotn@redhat.com>
>
>         <mailto:minovotn@redhat.com <mailto:minovotn@redhat.com>>>>, RHCE
>
>                   Virtualization Team (xen userspace), Red Hat
>
>
>
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>         <mailto:Xen-devel@lists.xensource.com>>>
>
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>
>
>
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>
>
>            --     Michal Novotny<minovotn@redhat.com
>         <mailto:minovotn@redhat.com> <mailto:minovotn@redhat.com
>         <mailto:minovotn@redhat.com>>>, RHCE
>            Virtualization Team (xen userspace), Red Hat
>
>
>
>
>     -- 
>     Michal Novotny<minovotn@redhat.com <mailto:minovotn@redhat.com>>, RHCE
>     Virtualization Team (xen userspace), Red Hat
>
>
>
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>    


-- 
Michal Novotny<minovotn@redhat.com>, RHCE
Virtualization Team (xen userspace), Red Hat

  reply	other threads:[~2010-06-21 11:58 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-06-19 16:00 XCP: pygrub missing ext4 support David Markey
2010-06-19 16:07 ` Pasi Kärkkäinen
2010-06-21  9:59   ` Michal Novotny
2010-06-21 11:26     ` David Markey
2010-06-21 11:29       ` Michal Novotny
2010-06-21 11:38         ` David Markey
2010-06-21 11:48           ` Michal Novotny
2010-06-21 11:55             ` David Markey
2010-06-21 11:58               ` Michal Novotny [this message]
2010-06-21 12:44                 ` Pasi Kärkkäinen
2010-06-21 13:02                   ` Michal Novotny

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