On 08/10/2012 02:05 PM, Leann Ogasawara wrote: > Hi Everyone, > > At UDS-Q we began discussions for how we will provide enablement stack > offerings in the Precise 12.04 LTS release, eg. provide the 12.10 > Kernel and X.org in 12.04 beginning with the 12.04.2 point release. > We captured plenty of feedback during these discussions and noted > numerous areas which still needed sorting as we move through the > Quantal devel cycle [A,B,C]. Logistics regarding support time frames, > image seeding, and upgrade paths/policies were all of specific > concern. With the Quantal devel cycle well under way and the 12.04.2 > point release a few months away, I've been attempting to drive many of > the remaining areas of concern to a resolution. I thought I would > take this opportunity to share a current status of where we are. > Please note I've marked some items "[TBD]" as they are still > undergoing review and discussion: > > 1. For the 12.04.2 CD's, we will default to the new Quantal > enablement stack. Due to size limitations we are unable to > provide options for both the Quantal enablement stack and the > original Precise stack. > 2. [TBD] For the 12.04.2 DVD's, we will default to the new Quantal > enablement stack but are also actively investigating the > possibility of providing an option to allow users to remain on the > original Precise stack. > 3. The 12.04.0 and 12.04.1 point releases will be archived and > available at old-releases.ubuntu.com. > 4. For the 12.04.2 CD's (and possibly the 12.04.2 DVD's if we are > unable to provide an option to remain on the original Precise > stack for the DVD's), we will message that anyone installing and > wishing to remain on the original 12.04 stack to please install > from the 12.04.0 or 12.04.1 media and update. >
Just expanding on item #4 with some additional details which were just discussed on #ubuntu-devel: * For the 12.04.2 point release, https://help.ubuntu.com/ and http://www.ubuntu.com/download/desktop should be updated to message/notify users that they do have the option to install with the 12.04.1 media as an alternative to remain on the original Precise stack. A link to the 12.04.1 media which will be archived at old-releases.ubuntu.com should also be referenced in this message. Thanks, Leann > 1. We only intend to support enablement stack package combinations in > 12.04 which are derived from the same release, eg. the 12.10 X.org > must be used in conjunction with the 12.10 kernel and vice versa. > Intermixing a 12.10 enablement kernel with the 12.04 X.org stack > or a 12.10 enablement X.org stack with a 12.04 kernel will not be > officially tested nor supported. > 2. Anyone running with the original Precise stack will not be > automatically updated to the new Quantal enablement stack. Users > can electively choose to install the Quantal (or newer) enablement > stack meta package if they wish to do so. > 3. Additionally, anyone upgrading to Precise will not be > automatically upgraded to the new Quantal enablement stack. > Again, they can electively choose to do so by manually installing > the appropriate meta package. > 4. The original 12.04 stack in Precise will remain supported for the > usual 5yr life cycle of the LTS release. > 5. Anyone running with the newer Quantal enablement stack will remain > on that stack until the following 14.04 LTS enablement stack is > available and supported in 12.04. Users will *not* be > automatically rolled forward to interim non-LTS enablement stack > offerings. > * If anyone is interested in updating to newer enablement stack > offerings in Precise as they become available, we will provide > series specific meta packages which they can manually choose > to install. We will also provide a rolling release meta > package for those who do want to roll forward automatically. > Again, this will be an elective package install and not mandatory. > 6. When an interim non-LTS enablement stack offering (ie Q|R|S > enablement stack in P) reaches it's EOL, users will be > automatically rolled forward to the 14.04 LTS enablement stack, eg > 12.10 enablement stack users will be automatically upgraded to the > 14.04 enablement stack in Precise upon the 12.10 enablement stack > reaching it's EOL. This will ensure a continuous line of > support. See item 11 below for follow on discussions. > 7. [TBD] The interim non-LTS enablement stacks (ie Q|R|S enablement > stacks in P) will only be supported in Precise from the time they > appear in a point release through the remainder of their natural > release life cycle, eg the 12.10 enablement stack will be > supported for 15mo in Precise due to the 3mo offset between > 12.10's official release and the 12.04.2 point release. > * There are concerns that 12.10 will EOL at the same time 14.04 > is released. Some are in favor of driving a more rigorous QA > effort of the 14.04 enablement stack in 12.04 to ensure an > immediate and smooth transition to the 14.04 enablement stack > on the day the 12.10 enablement stack EOL's. This would also > likely result in an increased level of quality for the initial > 14.04 release due to the extra testing focus. Others are > however more conservative and would prefer we not offer the > 14.04 enablement stack in Precise until the 14.04.1 time > frame. We commonly message that users should not be using an > LTS release for production environments until the .1 release. > It seems reasonable that we should message the same advice for > the enablement stacks and subsequently not automatically > upgrade users of the 12.10 enablement stack until the 14.04.1 > time frame. This provides an additional 3mo window where we > would benefit from bug fixes and overall testing we receive in > the initial months following 14.04's release. However, the > disadvantage here is this extends the support window of the > 12.10 enablement stack in Precise beyond it's natural support > window in it's original 12.10 release. It produces a larger > maintenance burden as well as a slightly more complicated > policy which would need to be messaged. > 8. [TBD] Anyone running an R or S enablement stack in Precise might > have an unexpected result if they upgrade their entire system to > Quantal. The packages offered in the R/S enablement stack would > supersede the Quantal packages. This still needs further > discussion for an appropriate upgrade policy/expectation for > anyone in this scenario. > 9. Apport has and will be updated to allow bug reporting in Precise > against the enablement stacks. These bugs will also be > appropriately tagged to assist in searching. > > Please feel free to raise any additional questions/concerns which may > not have been addressed above. I'll also try and provide updates for > the "TBD" items as they come to a resolution. > > Thanks, > Leann > > [A] > https://blueprints.launchpad.net/ubuntu/+spec/security-q-kernel-backports > [B] > https://blueprints.launchpad.net/ubuntu/+spec/desktop-q-xorg-lts-updates > [C] > https://blueprints.launchpad.net/ubuntu/+spec/qa-q-assuring-kernel-quality > > >
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