im facing a problem. after installing Ubuntu 12.04 LTS using boot from CD, when reboot there is no boot option to choose the OS. i directly log in to my Windows 7.

before this im having an issue with the 'nomodeset' if not mistaken. after tick [x] on the nomodeset, i can install my Ubuntu, and stuck again at choosing the partition.

so i had done 2 partitions for ubuntu, 1 partition for ubuntu ( ext3, mount /) and the other 1 for swap. then i can proceed until finished the installation. and after the system want to reboot. it take some times and just stuck at the screen doing nothing. not rebooting at all.

i force to shutdown then restart again then directly go into windows 7 without boot option. in win7 the partitions for ubuntu is gone.

i had tried the boot-repair thing and still doesn't help. it just show up the _ (terminal thing i guess). i typed boot repair and still the same.

im using acer aspire 4736z.

please anybody help me with this issue.