At Fri, 18 Jan 2013 14:55:15 -0600 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> What does this error mean?
>
> Updating : gtk2
>
> 35/178
> g_module_open() failed for
> /usr/lib64/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so:
> /usr/local/lib/libpng12.so.0: undefined symbol: inflateReset
> /usr/bin/gtk-query-immodules-2.0-64: /usr/local/lib/libpng12.so.0: no
> version information available (required by /usr/lib64/libcairo.so.2)
>
> Do I really need gtk2 running on a server anyway?
Only if:
1) runlevel is 5 (for the GUI login) or you log into the console and then use
startx or xinit to fire up the X Server.
2) you run GTK2 programs via SSH X-Server Tunneling -- you don't need it
for old-school xterms (eg xterm-215-8.el5_4.1), but you do need it for
gnome-terminals (eg gnome-terminal-2.16.0-5.3.el5_6.1).
A server *should* be set to use a non-graphical bootup (leave off the
rhgb kernel param) and login (runlevel == 3). It is always possible to
do something like 'ssh -X/Y server /usr/bin/xterm' to launch a xterm or
other X11 application. See also programs like nx(server) and
vncserver/vncviewer, which are other ways to have a GUI on an otherwise
headless [server] system. But if all you ever do is use slogin to the
server, then no, none of the xorg or gtk/gnome or KDE/Qt packages need
(or should) be installed (ie deselect '<mumble>-desktop',
'graphical-internet', etc. groups during install).
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--
Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx
Deepwoods Software -- http://www.deepsoft.com/
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