[CentOS] CentOS-7-x86_64-GenericCloud.raw very unusual format

[Aliaksei Sheshka]

What you mean is not listed ?
Click 1) https://www.centos.org/download/
there click 2) More download choices
it goes to 3) https://wiki.centos.org/Download
there you see 4) Cloud / Containers ,
http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.raw

raw files are very useful, they are very convenient to tweak by simply
mounting using losetup.
And there is no good reason to put 1 file inside tar.gz, just
compressed raw.gz would be fine.






On Tue, Mar 22, 2016 at 8:35 AM, Fabian Arrotin <arrfab at centos.org> wrote:
> On 21/03/16 15:34, Aliaksei Sheshka wrote:
>> Hello!
>>
>> Is anyone aware why CentOS-7-x86_64-GenericCloud.raw has such unusual format ?
>>
>> root at test-srv:~# wget
>> http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.raw
>> --2016-03-21 13:16:31--
>> http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.raw
>> Resolving cloud.centos.org (cloud.centos.org)... 162.252.80.138
>> Connecting to cloud.centos.org
>> (cloud.centos.org)|162.252.80.138|:80... connected.
>> HTTP request sent, awaiting response... 200 OK
>> Length: 374668382 (357M) [application/x-gzip]
>> Saving to: 'CentOS-7-x86_64-GenericCloud.raw'
>> CentOS-7-x86_64-GenericCloud.raw
>> 100%[=========================================================================>]
>> 357.31M  12.9MB/s    in 30s
>> 2016-03-21 13:17:03 (11.9 MB/s) - 'CentOS-7-x86_64-GenericCloud.raw'
>> saved [374668382/374668382]
>>
>> Download reports [application/x-gzip] for raw file
>>
>> And indeed
>> root at test-srv:~# file CentOS-7-x86_64-GenericCloud.raw
>> CentOS-7-x86_64-GenericCloud.raw: gzip compressed data, last modified:
>> Sat Feb 27 02:14:37 2016, from Unix
>>
>> Ok, lets uncompress:
>> root at test-srv:~# zcat -d CentOS-7-x86_64-GenericCloud.raw >
>> CentOS-7-x86_64-GenericCloud.a
>>
>> And check again
>> root at test-srv:~# file CentOS-7-x86_64-GenericCloud.a
>> CentOS-7-x86_64-GenericCloud.a: POSIX tar archive (GNU)
>>
>> Ok. it's a tar archive.
>>
>> root at test-srv:~# tar -xf CentOS-7-x86_64-GenericCloud.a -v
>> CentOS-7-x86_64-GenericCloud-1602.raw
>>
>> Now it's CentOS-7-x86_64-GenericCloud-1602.raw file which is indeed raw
>>
>> What is the point to pack single raw file into the tar.gz and to name it raw ?
>> Or it's just a mistake ?
>>
>> Thanks!
>
> So I found yesterday that the MultiViews option was active in the
> template used by cfgmgmt for those vhosts, and was the root cause of
> that behaviour.
> I confirm that such .raw image wasn't even present on those
> cloud.centos.org, but httpd served the .raw.tar.gz instead.
> Fix for this was pushed earlier today so you'll now have a 404 if you
> try to download that .raw file again.
> That brings though another question : why trying specifically to
> download a .raw file that isn't listed on that page ?
>
>
> --
> Fabian Arrotin
> The CentOS Project | http://www.centos.org
> gpg key: 56BEC54E | twitter: @arrfab
>
>
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