Ubuntu cannot boot after succesfull installation.pls help

[kannanni]

Hi all,



After succesfully installing Ubuntu 10.4 x32 and rebooting pc hangs on black screen with a flashing white dot in the top left corner of my screen, i've tried installing it twice with the same results.

my setup is: Asus p5q-e,
4 gig of corsair dual ram,
ati 4850 graphics,
onboard audio.
ahci mode
win 7 installed on intel ssd, and xp on a samsung 320 gb sata 2,
i had this configuration running fine for 2 months without boot loaders,
on pc start up i choose from which hdd to boot from.


i installed ubuntu on the samsung drive where it was recognised fine, wiped it all and installed automatically.


pls let me know if there is anything i missed, and advice if possible in what to do.



thanks
kannanni

[darkod]

Run the boot info script so we can see the boot process:
http://ubuntuforums.org/showpost.php?p=8844901&postcount=4

[kannanni]

thanks for your help.


unplugged all other hdd from my mobo apart from the one i wanted to install ubuntu, installed again, re-plugged all other hdd and i can boot fine now..

at the beginning for some reason ubuntu installed correctly on the hdd i selected, but mbr on another hdd, thus the problem arised.

all sorted now, thank you