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Thu 22nd Dec 2011 @ 09:20 2011: OpenOffice.org / LibreOffice Migration Guide for Microsoft Office Users

There is a fairly detailed Migration Guide on the OpenOffice.org Wiki, which although quite old still looks very good.

I'm surprised that I have never come across this, as it is a great piece of marketing for OpenOffice.org and LibreOffice, but seems to have had little publicity. There are individual pages comparing general differences, the word processor, spreadsheet and presentation parts of the respective office packages, as well as more general usage information

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Tue 20th Dec 2011 @ 08:48 2011: Solaris Packaging with Zones

One handy use for Solaris Zones that I have come across recently, is a very quick and easy way to build packages. Rather than "polluting" the main filesystem tree with the software to be packaged, simply create a zone, install the software there, and as a final act, you can even prune unwanted parts of the tree before packaging it up and disposing of the zone.

I had some software to install into /usr/local; the existing tree includes some (non-essential) software already in /usr/local, so I created a full-root zone, cleaned /usr/local within the zone, built the software (configure && make && make install), which was actually Perl, some third-party libraries, and 30 or so modules, and tested it in the zone.

Then to package it up, simply drop back to the global zone:

# cd /tmp/pkg
# echo "i pkginfo" > prototyp
# pkgproto /zones/myzone/root/usr/local=/usr/local >> /tmp/pkg/prototype
# cat - > pkginfo << EOF
NAME=Perl Stuff
PKG=MYperl
CLASSES=none
PSTAMP=
VERSION=5.8.9
EOF
# pkgmk


The package is ready in /var/spool/pkg/MYperl. You can use pkgtrans to ocnvert this into a MYperl.pkg file.

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Thu 15th Dec 2011 @ 12:33 2011: Command of the day

chown -h changes the ownership of symbolic links (rather than what they point to)

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Tue 6th Dec 2011 @ 16:34 2011: Gnome in CentOS 6

In CentOS6 (and presumably RHEL6, though I haven't tried it), if you do a minimal install and then add gnome-desktop, it will not pull in everything that is needed:

xorg-x11-server-Xorg
gnome-session
gnome-power-manager
gnome-session-xsession
gnome-panel

That's enough to get you logged in.

Then you'll still need gnome-terminal and all the other essential tools.

Presumably there is some meta-RPM in RHEL6 which pulls all of these in, but surely at a minimum, gnome-session should pull in gnome-session-xsession (which only contains one file: /usr/share/xsessions/gnome.desktop)

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