Re: XCP: pygrub missing ext4 support.

[Michal Novotny <minovotn@redhat.com>]

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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>>      
>
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>    


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