[LON-CAPA-admin] CentOS/Red Hat/Scientific Linux 6 -- ImageMagick

Stuart Raeburn raeburn at msu.edu
Fri Jun 26 11:18:03 EDT 2015


Packages for ImageMagick and ImageMagick-perl which contain newer  
versions than those present in the distribution's standard  
repositories have been added to LON-CAPA's own yum repositories for  
CentOS, Red Hat, and Scientific Linux 6 (both 64 bit and 32 bit  

When the CHECKRPMS script (run by cron on alternate nights) next runs  
it will advise using yum to update ImageMagick and ImageMagick-perl  
from to 6.8.9-7.dist6.lc (where dist = centos, rhel, or  

The newer packages create valid postscript when generating PDF  
printouts in LON-CAPA for resources containing certain types of jpeg  
images (e.g., see  

ImageMagick for LON-CAPA servers running other distros: CentOS 5 or 7,  
Ubuntu 12 or 14, or SLES11 do not need updating, as they already  
support printout generation for resources of this type.

In the case of CentOS/Red Hat/Scientific Linux 5, updated ImageMagick  
rpms which were built previously (June 2014 -- rev. to  
address a different issue to do with conversion of 8-bit alpha channel  
png files (see bug 6652 --  
http://bugs.loncapa.org/show_bug.cgi?id=6652#c9) can also support  
conversion of these jpeg images.

At least one other distro -- Ubuntu 10 LTS -- needs a newer version of  
ImageMagick to support printout generation for resources containing  
these types of jpeg images.  However, 10.04 LTS reached end of life on  
April 30, 2015, so any LON-CAPA domains running servers still using it  
should consider upgrading to either Ubuntu 12 LTS or 14 LTS.

Stuart Raeburn
LON-CAPA Academic Consortium

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