Openelec boot troubleshoot - VAIO Sony Computers & Internet

If you have to select the boot device every time, this means that the BIOS (CMOS) setup does not have the boot device listed as the first device to boot from. At startup, press the key that enters CMOS (BIOS), usually DELETE, or possibly F2. Once in the CMOS, look for boot options, then boot devices, then boot sequence. Find your device and ensure that it is listed first in the boot order sequence. Then save the changes and reboot. You may have it set for a USB or network boot first and it won't boot without intervention.

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Boot sequence problem? You set the boot sequence permanently in the Bios or System Setup. Normally when you boot the system the screen will tell you what key to hit to get into the Bios or Systems Setup.

You can set the boot sequence temporarily (just for the current boot cycle) by watching the screen when you boot and it will tell you which key to hit to change the boot sequence or boot order.

Yes. It is called "Dual Boot" or "Multi-boot". You can even have different operating systems on each drive or partition. For more information, just click this link.

Because the BIOS is probably set to boot the hard drive first. The A drive, second or third depending on the boot order set in the BIOS.

Set all in Boot priorty to CDROM
Set Other Boot Device to No.