cloned ubuntu boot harddisk doesnt work

Hello

I was cloning my ubuntu 10.10 (maverick) boot harddisk with "Acronis True Image Home 2011 Plus"
As cloning has been finished without any error messages, i turned off the computer and replaced the original harddisk with the cloned harddisk.

After restarting the computer the Ubuntu did not start anymore and there was that error message:

Gave up waiting for root device. Common Problems
- Boot args (cat /proc/cmdline)
- check rootdelay (did the system wait to long?)
- check root = (did the system wait for the right device?)
Missing modules ( cat /proc/modules; ls/dev)
Alert! /dev/disk/by-uuid/1e06f-koff8-cd11-4a27-914d-137wtf

Droping to shell !

Busy Box .........

I have to add, that i had made an sector for sector clone !

After some researches i found out that Linux has this "great" thing called "uuid" that makes every single partition a unique partition. Acronis somehow has problems to handle this or maybe Linux is the fault - i dont know.

Then i found out that i can turn off this "uuid" by editing some files at the original harddisk before cloning. I did as followed:

editing the /etc/fstab -> sudo nano /etc/fstab
replace: uuid=1e06_f0k_off8-cd11-4a27-914d-137wtf with /dev/sda1
replace (swap): uuid=1e06_f0k_off8-cd11-4a27-914d-137wtf with /dev/sda5

editing/disable uuid in /boot/grub/grub.cfg -> sudo nano /boot/grub/grub.cfg
--fs uuid -> delete
--set uuid=1e06_f0k_off8-cd11-4a27-914d-137wtf -> delete and replace with:
--set /dev/sda1

deleting the uuid and enter swappartition with sudo nano in /etc/initramfs-tools/conf.d/resume
delete: uuid=1e06_f0k_off8-cd11-4a27-914d-137wtf enter swap drive: /dev/sda5

deactivate uuid in /etc/default/grub -> sudo nano /etc/default/grub
# GRUB_DISABLE_LINUX_UUID=true
delete this „#“

After i've done this, i could make a Acronis clone and the cloned harddisk was booting.
Booting and loging in was successfull but as i tried to open virtualbox an errormessage appeard "missing com objekt..." ; Firefox could not be opened, instead of Firefox a litle window appeared with nothing in it and i had to guess where the cancel button would be to klick on it to close this window;
Gimp also started only with a error message "could not create temporarly testfile..."

Why is this ???
I would be happy if somone could help.
thx