[CentOS] install CentOS using an external USB cdrom

[Gerald Waugh]

Excuse me,
 I copied that last email's directions from
http://www.nuonce.net/bq-cd.php and it's
 very confusing. It is using BlueQuartz GUI for CentOS.

 All you wanted was how to run mkisofs.
 So this is how I do it and it seems to work.

 Assuming you copied the cd contents to "custom_cd" directory
 make sure .discinfo gets copied....

 cd custom_cd
  change isolinux/isolinux.cfg 
    adding console=ttyS0,38400,n8 to append statement

  mkisofs -P CentOS \
          -b isolinux/isolinux.bin \
          -c isolinux/boot.cat \
          -no-emul-boot \
          -boot-load-size 4 \
          -boot-info-table \
          -r -J -T -o ../custom_cd.iso .

Custom_cd.iso is the name of the new ISO 
burn it to a CD!

HTH
Gerald