[CentOS-announce] Release for CentOS Linux Rolling media

Fri Dec 5 01:48:21 UTC 2014

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I am pleased to announce general availability of the rolling builds
for CentOS Linux. Todays release includes CentOS Linux 7 iso based
install media and the generic cloud images.

CentOS Linux rolling builds are point in time snapshot media rebuild
from original release time, to include all updates pushed to
mirror.centos.org's repositories. This includes all security, bugfix,
enhancement and general updates for CentOS Linux. Machines installed
from this media will have all these updates pre-included and will look
no different when compared with machines installed with older media
that have been yum updated to the same point in time. All rpm/yum
repos remain on mirror.centos.org with no changes in either layout or
content.

We will aim to update and issue for release a new set of these files
at the end of every month going forward. Each released filename
includes a datestamp and a buildtag to indicate the content included.
Files marked as 20141129_02 indicate that it includes all content
released to mirror.centos.org upto ( and including ) the 29th of Nov
2014 and is the second build of that cycle. While all build's are made
public at buildlogs.centos.org/, only those that pass our QA and
testing cycles will be marked as released, to be included in
buildlogs.centos.org/rolling/. We will also do interim builds as
needed ( for development and testing purposes ) at different points in
time, those builds will not be marked for general release, but will
still be avilable publicly.

Since there is a need to test these images, the release will always
lag few days behind the datestamp ( and therefore content included )
in the release. My aim is to automate as much of this as possible
going forward to reduce this time lag as much as possible, however we
might not be able to remove it completely.

With every cycle, we hope to increase the content made available in
this rolling format. Immediate next steps include bringing the CentOS
Linux 7 livemedia into the rolling releases followed by CentOS Linux 6
content from the next ( December 2014 ) cycle.

Due to the way the installer works in CentOS-5, and its point in time
we have no plans on including CentOS-5 in this cycle at this point.

For the sake of uniformity and communication, the release media will
be referenced by the month it reflects, not the month it was released
in. Making this release the Nov 2014 Rolling release.

Other content formats like containers and vendor specific images will
aim to start with the same cycle as the main CentOS Linux media, but
might move to a more frequent build and release cycle if needed.
Special Interest Groups ( http://wiki.centos.org/SpecialInterestGroup
) wanting to do media and installer releases should also consider
using the rolling timelines to sync with.

Finally, I want to highlight that we will always consider doing a
rolling release to address major security issues like the recent
heartbleed, shellshock and poodle patches.

- -----------
CentOS Linux distro installer media:

File: CentOS-7-x86_64-DVD-20141129_02.iso
Sha256sum:
85a46c62b5bfc701678bef7854bb73af4ccfb840dfcbfb2f9b2189e08fe9438c

File: CentOS-7-x86_64-Everything-20141129_02.iso
Sha256sum:
f9fdd8b12c9529a1e3bf7628ebee964b2aeb9fd66540de7b369e0fde6f7a4236

File: CentOS-7-x86_64-Minimal-20141129_02.iso
Sha256sum:
e1338d13178f1c66c17386b7ced0b1459c677ff9a1cf095ac4db377234cc03fa

Symlinks are provided that will always map to the latest released
builds, as follows ( including their current mapping )
http://buildlogs.centos.org/rolling/7/isos/x86_64/CentOS-7-x86_64-DVD.iso
- -> CentOS-7-x86_64-DVD-20141129_02.iso
http://buildlogs.centos.org/rolling/7/isos/x86_64/CentOS-7-x86_64-Everything.iso
- -> CentOS-7-x86_64-Everything-20141129_02.iso
http://buildlogs.centos.org/rolling/7/isos/x86_64/CentOS-7-x86_64-Minimal.iso
- -> CentOS-7-x86_64-Minimal-20141129_02.iso

These symlinks will be updated to point at the latest tested and
released media and make for a good target in automation that requires
CentOS Linux media.

- ----------
Cloud and Instance Images:

The CentOS Linux 7 GenericCloud image is built to include cloud-init
from the Extras/ repository. The image is made available in multiple
formats, with identical content. The cloud images are released via
http://cloud.centos.org/centos/7/images/

File: CentOS-7-x86_64-GenericCloud-20141129_01.qcow2
Desc: is the reference image.
Size: 944 MB
Sha256Sum:
7710ffdd497cf00fc72c22a3fa7cc7adb3424d3542521ca8fbe19eba9ded403f

File: CentOS-7-x86_64-GenericCloud-20141129_01.qcow2c
Desc: This is the same image, run through the qemu qcow2 internal
compression setup - while this image is suiteable for development and
play, it comes with non trivial i/o performance penalties and
therefore not recommended for production.
Size: 399MB
Sha256Sum:
db42e4fb9565e75f0acbe6b54a5b8822f3f1e9783fb1a553e1552c72ceaff8df

File: CentOS-7-x86_64-GenericCloud-20141129_01.qcow2.xz
Desc:  This is the regular qcow2 file, run through the xz compression
tool. This gives a regular qcow2 file, suiteable for production use.
Size: 266MB
Sha256Sum:
9b0b38c48a24164c15c33625972b87835501b6994c3ee894f6b79ce40e7d5e54

File: CentOS-7-x86_64-GenericCloud-20141129_01.raw
Desc: This is a raw format file for systems that dont consume qcow2
image types. Its also suiteable to use with "qemu-img convert" to
render into different formats.
Size: 8GB.
Sha256Sum:
2e643310bdb3cda775905408dbfe378a5eed04e91db193165178afc5ed5492b8

Symlinks are provided that will always map to the latest released
builds, as follows ( including their current mapping )
http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2
- -> CentOS-7-x86_64-GenericCloud-20141129_01.qcow2
http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2c
- -> CentOS-7-x86_64-GenericCloud-20141129_01.qcow2c
http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.qcow2.xz
- -> CentOS-7-x86_64-GenericCloud-20141129_01.qcow2.xz
http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud.raw
- -> CentOS-7-x86_64-GenericCloud-20141129_01.raw

These symlinks will be updated to point at the latest tested and
released media and make for a good target in automation that requires
CentOS Linux media.

- ----------
For more information and comments please join us on the centos-devel
mailing list ( http://lists.centos.org/ )

Enjoy!

- -- 
Karanbir Singh, Project Lead, The CentOS Project
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