Posted 10 January 2006 - 02:37 AM
Yes, the boot sequence is a user set configuration in BIOS.
Boot devices are:
Floppy Drive (if you have one)
CD ROM (or equivalent ie, CD-ROM, CD-RW, DVD ROM or DVD RW)
Hard drive (the one with the OS on it, if more than one are present on the PC)
BIOS will probably give you 3 devices to use.
First boot device would be the floppy, for those who still use it for diagnostic boot disks.
First boot device will be ignored infavor of the next on the list, if no media is present.
Second boot device if it is the CD-ROM AND a CD (media) is present it will boot from it
Third boot device therefore, is the last one the small OS that BIOS is locates.
Fastest boot would be:
First boot device, hard drive.
But, if the hard drive boot initialization ever gets compromised, and that problem includes access to the BIOS console itself, you're in trouble.
So, use all three in a sequence that compromises speed of boot with safety of the CD or Floppy being available for the install CD or other boot disks, I think.
1st Floppy (left empty)
2nd CD_RW (left empty)
opinions/preferences vary on this point of computer organization
patiently patrolling, plenty of persisant pests n' problems ...