VGA setting in isolinux.cfg file on bootcd.iso is ignored

  • 3438897
  • 08-Jan-2008
  • 30-Apr-2012


Novell ZENworks 7 Desktop Management Support Pack 1 - ZDM7 SP1 Imaging


When the vga setting is changed in the isolinux.cfg file in the bootcd.iso it is ignored unless the vga setting is placed at the end of the parameter string. The following steps all change the resolution successfully:
  1. Using F4 to change to 800x600
  2. Entering any of the following on the boot options line: vga=0x0303, vga=771, vga=0x103, vga=259

However, if it boots on its own, it ignores the vga=0x0303 setting in the isolinux.cfg file and boots to 1024x768. If the vga-0x0303 setting is moved to the end of the string after "showopts"; parameter, the setting is recognized successfully.


Fixed in ZENworks 7 Desktop Management Service Pack 1 Interim Release 3a, see KB 3484245 "Updates to Novell ZENworks 7 Desktop Management" which can be found at
Work Around:
Place theVGA setting at the end of the parameter string
bad string:
append initrd=initrd ramdisk_size=65536 vga=0x0314 splash=silent mode=5 CDBOOT=YES showopts
good string:
append initrd=initrd ramdisk_size=65536 splash=silent mode=5 CDBOOT=YES showopts vga=0x0303

Change Log

May 11, 2010 - Jared Brunson - changed the 'Fixed in...' link from the download page to the support page.