[Mageia-dev] RFC: Add versioned require in rpm on rpm-helper

Mon Apr 16 12:32:13 CEST 2012

Thierry Vignaud skrev 16.4.2012 12:36:
+> On 16 April 2012 11:30, Thomas Backlund<tmb at mageia.org>  wrote:
+>> Ah, you only mentioned system urpmi (not rpm) first time.
+>>
+>> but wont installer already use correct rpm/rpm-helper, since it's built from
+>> current cauldron packages?
+>> (and can be rebuilt again after updated rpm-helper)
+>
+> installer runs packages post-scripts in their chrooted environment,
+> aka the installed system.
+>
+
+
+Thanks for clarifying.
+
+>>>> and since rpm is a priority package, it will be done in the beginning,
+>>>> wont
+>>>> it ?
+>>>
+>>> NO.
+>>
+>> but since it's already correct version in stage2, we should already be ok,
+>> or... ?
+>
+> Unless you add specific versionated requires, you've no guaranties that rpm
+> will get updated before foobar which has a systemd unit and requires
+> an up to date rpm-helper.
+>
+
+Yep, that was why I thought adding versioned requires on rpm would be 
+enough (wich it would be in urpmi case)
+
+>>>>> A somewhat nicer fix would be to auto generate some
+>>>>> 'needs-systemd-aware-rpm-helper'
+>>>>> requires for packages providing systemd units, having rpm-helper
+>>>>> fulfil this provides
+>>>>
+>>>> Then we wouldn't need this.
+>>>
+>>> Yes we do
+>>
+>> So instead of fixing one package we will have to fix many packages :/
+>
+> That has always be the way to do.
+> Any package should require what it needs for its post/pre scripts.
+
+Yeah, that's true.
+
+> For systemd units, that means, an up to date rpm-helper.
+
+True.
+
+> Another way would be to alter the installer (see install/pkgs&  media.pm)
+> in order to install first urpmi by handling priority upgrades w/o
+> actually restarting
+> itself of course. (Might need urpmi changes).
+>
+> Or to explicitly upgrade rpm/rpm-helper first.
+
+Ok, so whatever we do decide, we need to fix it fast, we are supposed to 
+release beta3 soon...
+
+Thinking some more on the issue, I guess the best way is to fix requires 
+on all packages with systemd units as it will cover every way (besides 
+--nodeps) people can install the rpms.
+
+--
+Thomas
+