Op vrijdag 16 maart 2007 23:04, schreef Andrew Bogecho:
After testing the beta of CentOS 5, i was a little surprised to notice that the display manager part of the prefdm file in /etc/X11 was exactly like in CentOS 4 / RHEL4 and previous versions including RH9.
it reads like this (added line numbers for reference):
14 # Run preferred X display manager 15 preferred= 16 if [ -f /etc/sysconfig/desktop ]; then 17 . /etc/sysconfig/desktop 18 if [ "$DISPLAYMANAGER" = GNOME ]; then 19 preferred=gdm 20 elif [ "$DISPLAYMANAGER" = KDE ]; then 21 preferred=kdm 22 elif [ "$DISPLAYMANAGER" = XDM ]; then 23 preferred=xdm 24 fi 25 fi
Line 17 is no functional command i know of, therefor the choice of which displaymanager (login-screen) to use is decided by the fallback lines later in the script (that starts with gdm). If you're ok with gdm, than there's no need for this to change.
Hi,
I believe that in bash and sh placing . (dot) followed by a space and then a file will source that file, and in so doing source the DESKTOP="BLAH" into the current environment.
If tried (tested) that but if you have DESKTOP="KDE" in /etc/sysconfig/desktop and the original prefdm, than the loginscreen will be gdm and not kdm. I wouldn't be surprised if the feature you mention existed, but it doesn't work like that on the redhat-pc's i've seen...
Rody
A.
Typo there I meant: DISPLAYMANAGER="BLAH"
A.
Still, it would seem that something is missing there. My best guess for what was supposed to be there:
# Run preferred X display manager preferred= if [ -f /etc/sysconfig/desktop ]; then DISPLAYMANAGER=$(cat /etc/sysconfig/desktop | grep DESKTOP | cut -d '"' -f2) if [ "$DISPLAYMANAGER" = GNOME ]; then preferred=gdm elif [ "$DISPLAYMANAGER" = KDE ]; then preferred=kdm elif [ "$DISPLAYMANAGER" = XDM ]; then preferred=xdm fi fi
This would make kdm your display manager when using kde as default desktop and gdm when using gnome. Although the grep part is not necessary, i added it in case someone decides to add lines to the desktop file someday...
I've come across one forum post in which someone suggested to add the line DISPLAYMANAGER="KDM" to the desktop file in order to achieve the same result. For this to work the prefdm file should be altered like this:
# Run preferred X display manager preferred= if [ -f /etc/sysconfig/desktop ]; then if [ -n "$(cat /etc/sysconfig/desktop | grep DISPLAYMANAGER | cut -d '"' -f2)" ];then DISPLAYMANAGER=$(cat /etc/sysconfig/desktop | grep DISPLAYMANAGER | cut -d '"' -f2) if [ "$DISPLAYMANAGER" = GDM ]; then preferred=gdm elif [ "$DISPLAYMANAGER" = KDM ]; then preferred=kdm elif [ "$DISPLAYMANAGER" = XDM ]; then preferred=xdm fi else DISPLAYMANAGER=$(cat /etc/sysconfig/desktop | grep DESKTOP | cut -d '"' -f2) if [ "$DISPLAYMANAGER" = GNOME ]; then preferred=gdm elif [ "$DISPLAYMANAGER" = KDE ]; then preferred=kdm elif [ "$DISPLAYMANAGER" = XDM ]; then preferred=xdm fi fi fi
It all seems basic scripting to me so i wonder if no-one simply never noticed or never cared to finish this one.
Rody
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