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Please check also this bug fixed in Havana: https://bugs.launchpad.net/nova/+bug/1155842

If you are running Grizzly you’ll need 2013.1.4.



On 22 Feb 2014, at 23:16, Alessandro Pilotti <apilotti at cloudbasesolutions.com> wrote:

> Hi Akira,
> 
> Cloudbase-Init supports ConfigDrive v2 metadata provided as either:
> 
> - ISO in cdrom drive (any version of Windows starting with XP / 2003)
> - ISO in raw HDD (starting with Windows 8 / Windows 2012)
> 
> As you correctly pointed out, Windows does not directly support mounting raw disks (unpartitioned), so the latter is achieved by
> extracting the content of the HDD in an ISO file and mount it as a loopback drive.
> 
> Nova defaults to ISO and supports VFAT for legacy reasons only. Quoting from [1]:
> 
> “For legacy reasons, you can configure the configuration drive to use VFAT format instead of ISO 9660. It is unlikely that you would require VFAT 
> format because ISO 9660 is widely supported across operating systems. However, to use the VFAT format, add the following line to 
> the /etc/nova/nova.conf file:
> 
> config_drive_format=vfat"
> 
> Due to this consideration, we didn't see any particular reason for supporting also VFAT, but we can talk about it if you have specific scenarios where it’s worth.
> 
> 
> Thanks,
> 
> Alessandro
> 
> 
> [1] http://docs.openstack.org/user-guide/content/enable_config_drive.html
> 
> 
> On 22 Feb 2014, at 18:29, Akira Yoshiyama <akirayoshiyama at gmail.com> wrote:
> 
>> Hi all,
>> 
>> Recently, I've tried to use HDD-style config-drive with Windows VM and
>> Cloudbase-init, but It didn't work.
>> I found 2 things below:
>> 
>> * HDD-style config-drive v2 of Nova uses a VFAT filesystem without
>> partition (whole disk).
>> * Windows Server 2012 doesn't recognize a filesystem without partition.
>> 
>> HDD-style config-drive is useful because cloud-init can delete all
>> data on it for security.
>> How can I resolve this problem? Does HDD-style config-drive need to
>> change its format?
>> 
>> Thank you,
>> Akira Yoshiyama
>> 
>> p.s. Cloudbase-init looks for an ISO image on HDD-style config-drive.
>> 
>> _______________________________________________
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>> OpenStack-dev at lists.openstack.org
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> 
> 
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