How can I skip reboot check and remove command line appearing during install of SQL Server? While i am installing SQL Server 2008 R2 using the configuration file method I sometimes get an error in installation due to system reboot checking. 

After restarting my PC, SQL Server installs properly.  I want SQL Server setup to not check if the PC is rebooted or not. In SQL Server 2005 I can do this by using /norebootchk. How can I do this in SQL Server 2008 R2?

Also while installing in silent mode by using quiet=true I am getting a SQL Server command prompt while installing.  



How can I avoid this command prompt appearing when I am installing in quiet mode?
To skip the reboot check:

SkipRules=RebootRequiredCheck


To hide the console window:

HIDECONSOLE=True


Full command line/.ini file options can be found here.  The SkipRules option is not documented there and appears to be part of the general installer options.