Jeff, I wasn't suggesting IUS use it officially, just throwing it out there in case anyone is interested ;) .
I hadn't seen this kind of set up discussed or documented, so figured I'd send an email in case others are interested. --- Mark McKinstry On Jan 23, 2012, at 9:12 AM, Jeff Ness wrote: > Hello Mark, > > Thank you for taking the time to bring this to our attention, > unfortunately I do not believe this to be the best approach for IUS at the > current time. > > IUS has specifically named our packages in such a way to not conflict with > Redhat's packages. > > The naming connivence was also used to clearly distinguish an IUS package > from a Redhat package, > without digging to deep a user can clearly see php is in different than > php53u or php52 (This is how the yum replace module can replace php with > php53u). > > If we were to make these configuration changes I can see a lot of confusion > arising from them, > for example there may be cases where a user does wish to install php from > Redhat yet keep IUS installed for other additional packages. > > If IUS referenced our php52 or php53u packages by the name php in any way > this immediately clouds specific differences we put in to place. > > Jeffrey- > > On Jan 22, 2012, at 4:05 PM, Mark McKinstry wrote: > >> I find it annoying to have to figure out what version of PHP one is running >> so you can modify your yum install command to install some module for that >> version. For example, if you have php53u installed, running yum install >> php-foobar will fail since it tries to install the default version of PHP >> from RHEL/CentOS, you have to change it to 'yum install php53u-foobar' >> instead. >> >> There is a way to work around this, if you make it so yum can only see your >> desired version of PHP, you can run 'yum install php-foobar' and it will >> install php53u-foobar for you automatically. >> >> To do this for PHP and MySQL, you need to use exclude and includepkgs to >> restrict yum to only seeing your desired version of PHP and MySQL: >> >> * add 'exclude=php* mysql*' to each section in >> /etc/yum.repos.d/CentOS-Base.repo >> * add 'exclude=php* mysql*' to each section in /etc/yum.repos.d/ius.repo >> * add a new section to /etc/yum.repos.d/ius.repo for PHP, changing php53u to >> your desired version: >> >> [ius-php] >> includepkgs=php53u* >> name=IUS Community Packages for Enterprise Linux 5 - $basearch - PHP >> #baseurl=http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/$basearch >> mirrorlist=http://dmirr.iuscommunity.org/mirrorlist?repo=ius-el5&arch=$basearch >> failovermethod=priority >> enabled=1 >> gpgcheck=1 >> gpgkey=file:///etc/pki/rpm-gpg/IUS-COMMUNITY-GPG-KEY >> >> * add a new section to /etc/yum.repos.d/ius.repo for MySQL, changing mysql51 >> to your desired version: >> >> [ius-mysql] >> includepkgs=mysql51* mysqlclient15 >> name=IUS Community Packages for Enterprise Linux 5 - $basearch - MySQL >> #baseurl=http://dl.iuscommunity.org/pub/ius/stable/Redhat/5/$basearch >> mirrorlist=http://dmirr.iuscommunity.org/mirrorlist?repo=ius-el5&arch=$basearch >> failovermethod=priority >> enabled=1 >> gpgcheck=1 >> gpgkey=file:///etc/pki/rpm-gpg/IUS-COMMUNITY-GPG-KEY >> >> >> The reason for having separate mysql and php sections is you can can add the >> 'exclude=php* mysql*' to the normal ius section and still be able to draw in >> packages like python31, rsyslog4, etc. If you used includepkgs=php53u* you >> wouldn't be able to use any of those packages. If you don't care about other >> packages, you could skip the extra steps for the ius-php and ius-mysql >> sections and just use 'includepkgs=php53u* mysql51* mysqlclient15' . >> >> Anyways, with the above set up, you can then run 'yum instal php mysql' and >> yum will pull in the php53u package and the mysql51 pacakges. Likewise, if >> you run 'yum install php-imap' it will automatically pull in php53u-imap for >> you. This makes it much easier IMHO to install stuff, no more figuring out >> what version of PHP you have installed. It also avoids people panicking, >> getting confused by error messages, or making mistakes because they don't >> understand how to deal with multiple versions of PHP being available to yum. >> When they run yum install php-foobar and it installs php52-foobar they're >> not going to bat an eye, whereas when they get the error message about some >> packing conflicting with a file from another package, they can easily get >> confused and panic of the mysterious error message. >> >> To upgrade or downgrade versions, you just have change the includepkgs lines >> to reflect your newly desired version and run the usual commands. >> >> --- >> Mark McKinstry >> >> >> _______________________________________________ >> Mailing list: https://launchpad.net/~ius-community >> Post to : [email protected] >> Unsubscribe : https://launchpad.net/~ius-community >> More help : https://help.launchpad.net/ListHelp > > --- > Jeffrey Ness > Linux System Engineer > IT Operations [Development] > Rackspace Hosting & IUS Community > _______________________________________________ Mailing list: https://launchpad.net/~ius-community Post to : [email protected] Unsubscribe : https://launchpad.net/~ius-community More help : https://help.launchpad.net/ListHelp
