Hi! I installed Ubuntu on my External HDD and the process was fine. But I wasn't able to boot into the OS.

Booting 'Ubuntu, kernel 2.6.10-5-386 '
root (hd1,4)
Filesystem type is ext2fs, partition type 0x83
kernel /vmlinuz-2.6.10-5-386 root=/dev/sda1 ro quiet splash
[Linux-bzImage, setup=0x1600, size=0x1209f6]
Initrd /intrd.img-2.6.10-5-386
[Linux-intrd @ 0x1fbb3000, 0x43c00 bytes]
savedefault
Uncompressing Linux... Ok, booting the kernel.
audit(1131486469.861:0): initialized
Startign Ubuntu...
pivot_root: No such file or directory
/sbin/init: 428: cannot open dev/console: No such file
Kernel panic - not syncing: Attemped to kill init!
-

And ya, by doing that I installed the Grub Bootloader inside my HDD, how should I remove it?

Thanks!