installing portable on USB stick

Hallo i'm trying to install a portable version on an USB stick from a Live USB stick.

Unfortunetaly it is on 27% since one hour.

I tried to check it in dolphin it making progress on filewriting but i get this when i get properties of the drive

So i'm using a16 GB usb stick...... and it shows me 128 TB !! LOL

Somebody has an idea why it stucks?
i have a 150 MB fat32 /boot/efi
12Gb /
3 Gb Swap

partition and no office installation selected.

Thanks in advance

Forum kindly sponsored by