Mailinglist Archive: opensuse-features (503 mails)

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[openFate 305634] Debian-like dist-upgrade live system full version upgrade
  • From: fate_noreply@xxxxxxx
  • Date: Tue, 13 Jan 2009 14:15:12 +0100 (CET)
  • Message-id: <feature-305634-15@xxxxxxxxxxxxxx>
Feature changed by: Stanislav Visnovsky <visnov@xxxxxxxxxx>
Feature #305634, revision 15
Title: Debian-like dist-upgrade live system full version upgrade

openSUSE-11.2: Evaluation
Priority
Requester: Mandatory

Requested by: Federico Lucifredi (flucifredi)
Interested: Andre Duffeck (aduffeck)
Interested: Guy Lunardi (glunardi)
Interested: Joe Brockmeier (jbrockmeier)
Interested: Klaus Kämpf (kwk)
Interested: Matthias Eckermann (mge1512)
Interested: Stefan Behlert (sbehlert)
Interested: Stephan Binner (beineri)
+ Interested: Thorsten Kukuk (kukuk)

Description:
With the 11.2 cycle, we want to offer users the ability to perform a
live system upgrade in the manner of Debian's dist-upgrade.
For the purpose of this cycle, we want to support dist-upgrade from the
previous version (11.1) only, as this is a sufficiently complicated
problem as is.
From the user's view, the difference is between being able to update
the system incrementally within the given version or service pack
running, to being ble to migrate with a system command ("zypper dup" or
similar) to a higher version altogether.
In the Debian experience, the set of base distributions is not
necessarily limited, but it has been Ubuntu's practice to define what
starting points other than "release n-1" are allowed (for instance, all
LTS versions are purported to be able to "apt dist-upgrade" to the top
of the line, although I have heard of problems trying to jump two years
- 6.06->8.10 - in a fell swoop in this manner :-).
In the openSUSE scope, we should aim to be able to "dup" between
incremental versions, starting from 11.1 to 11.2, and later 11.x to
12.0.

Discussion:
#1: Federico Lucifredi (flucifredi) (2009-01-07 20:42:15)
This is the #1 feature in the systems management scope for 11.2 - I
have no doubt it will be fun :-)

#4: Klaus Kämpf (kwk) (2009-01-09 11:32:53)
Passing to mls for technical evaluation (solver + autobuild)

#5: Michael Schröder (mlschroe) (2009-01-09 12:48:10)
Any hint on what features are currently missing?

#6: Klaus Kämpf (kwk) (2009-01-09 13:30:57) (reply to #5)
From the top of my head:
How to handle
* Library ABI changes (e.g. major gcc/g++ upgrades) ?
* Core package changes (e.g. devs.rpm to udev) ?
* Kernel changes (if application/deamons need a specific kernel abi,
dbus comes into mind) ?
* Failure handling (network breakdown, package update errors, ...) ?
* Booting of the new kernel ?


#7: Michael Schröder (mlschroe) (2009-01-09 14:45:09) (reply to #6)
And debian does this in some way?



--
openSUSE Feature:
https://features.opensuse.org/?rm=feature_show&id=305634

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