Description of problem:
If a crypted disk is used then rc.sysinit must ask for a password. If rhbg is
used, this is done by quitting rhgb and switching to text mode which is quite ugly.
The attached patch uses zenity (if available) to ask for the password. Therefore
no switch to text mode is necessary and the rhbg could continue after the
password. The system looks "nice".
If zenity is not available (but it is in the default install) or no rhgb is
used, then the old code is used.

Version-Release number of selected component (if applicable):
initscripts-8.60-1

How reproducible:
Start FC8 with a crypted disk and watch rhbg being quit before asking the password.

Steps to Reproduce:
1. Boot FC8 with rhbg on and a crypted disk
2. Before asking the password, rhbg is quit.
3. The rest of the boot process is without rhbg and therefore "ugly"
  
Actual results:
rhgb quit.

Expected results:
Use rhgb all the time


Additional info: