Problems downloading ubuntu updates

[konqueror101]

I have Ubuntu 9.04 Jaunty Jackalope. When i try to update my system i get this error :

The upgrade needs a total of 722M free space on disk '/'. Please free at least an additional 722M of disk space on '/'. Empty your trash and remove temporary packages of former installations using 'sudo apt-get clean'.

Please guide me pals.

[SalVatore]

The error states that there is not enough space on your root disk and it needs more space then what space is available on the root partition also denoted by "/" symbol. Well you must delete all the temporary files and files from Trash. This may let you recollect some space. To empty the temporary folder run this command from console :

sudo apt-get clean

[konqueror101]

I already did all those stuffs that it told me in the error. And i have more then 2 gigs of free space. What may be causing this problem? Is the ubuntu trying to downloaded the updates in some other drive? I don't have much space in other drivers expect the root drive "/". Please help me, i haven't updated my system since too long and i want to update it now. Any help?

[Solomon]

Are you sure that your root partition has enough free space? If so, why will ubuntu not detect the free space. Aren't you checking other partition? Or may be did you change the settings from synaptic package manager or update manager? May be that is why it is downloading the update packages to some other partition. Have a look there too.