From Bugzilla Helper: 
User-Agent: Mozilla/5.0 (compatible; Konqueror/3.0.0-10) 
 
Description of problem: 
After installing 7.3, the system hung after the 'Enabling Swap 
Space : ON' message 
 
Version-Release number of selected component (if applicable): 
 
 
How reproducible: 
Always 
 
Steps to Reproduce: 
1. Install 7.3 
2. Reboot 
 
 
Additional info: 
 
The system contains a Conner IDE tape drive. The hang occurred 
in the /etc/rc.d/rc.sysinit script. The section of the script 
responsible is 
 
# Turn off DMA on CD-ROMs. It more often than not causes 
problems. 
 if [ -e /proc/ide ]; then 
   for N in `grep -v ide-disk /proc/ide/*/*/driver 2>/dev/null 
| awk -F / '{ print $5 }'`; do 
    hdparm -q -d0 /dev/$N >/dev/null 2>&1 
   done 
 fi 
 
Running the grep|awk command prints 'hdc'. 
 
The fix is to enter 'linux rescue' mode and comment out the 
above lines and then rebooting.