Bootmgr from boot from USB

[MarkDome]

Hi Guys and Girls,

Ive a little problem, I've an old laptop with out a screen. So I've an extended screen but I'm not able to enter my bios, I've seriously no idea why. Tried pressing F2, F8 F10 F12 and also 'del' but nothing happened.

So I downloaded PLOP bootmanager and now I can boot from my USB.

I tried 2 ways to make the USB bootable. Its a 1GB usb.
Way 1 was with DISKPART - SELECT DISK 1 - CLEAN - CREATE PARTITION PRIMARY - SELECT PARTITION - ACTIVE - FORMAT FS=NTFS

the second way was with unetbootin
http://unetbootin.sourceforge.net/

Boot ways give the error
'bootmgr onbreekt
Druk Ctrl+Alt+Delete om opnieuw te starten'
(missing bootmgr, press Ctrl+Alt+Delete to reboot)

What is the problem? Can someone help me
Downloaded Ubuntu-12.04-server-amd64.iso from ubutu.com (download/server)

Please help me out :)
greetz Mark

[raja.genupula]

have you checked the ISO image for any errors ? ?
click here (https://help.ubuntu.com/community/HowToMD5SUM)

[MarkDome]

I tried it and md5

MacBook-Pro-van-Mark:~ turinhinhurin$ md5 /Users/turinhinhurin/Downloads/ubuntu-12.04-server-amd64.iso
MD5 (/Users/turinhinhurin/Downloads/ubuntu-12.04-server-amd64.iso) = f2e921788d35bbdf0336d05d228136eb

And that's the same as the hash at
https://help.ubuntu.com/community/UbuntuHashes

So it seems valid

[raja.genupula]

its looking like you havent prepared proper LIVE USB . give a try with formatting USB to FAT .

unetbootin should have to take care of all the things , try again with that .

if you have any Ubuntu PC try with startup disk creator .

[MarkDome]

Made it FAT
Now I got some new messages

"verwijder schijven of media. Druk op een toets"
"Remove disks or mediums. Press a key"

If I press a key, the same message appear.
I press a key and after my computer gave a new message

"Reboot and Select prober boot device or Insert Boot Media in selected Boot device and pres a key"

[raja.genupula]

you set boot from Removal disk in BIOS boot priority's .