I too have experienced a similar issue. Towards the end of the upgrade I get:
Failed to fetch http://all.repository.backtrack-linux.org/pool/testing/set-2.5.3-bt0_all.deb Size mismatch
Failed to...
Type: Posts; User: jfk92; Keyword(s):
Re: Unable to upgrade BT5 to BT5 R2
I too have experienced a similar issue. Towards the end of the upgrade I get:
Failed to fetch http://all.repository.backtrack-linux.org/pool/testing/set-2.5.3-bt0_all.deb Size mismatch
Failed to...
Re: BT5 R1 hangs at Red Splash Screen while booting - Unable to install it
Hey I had a similar issue but the message I had related to not viewing a live operating system from the USB. Point is - if you are loading from a USB stick - try a different USB port - I believe my...