Comment 9 for bug 300648

Could the size difference be affected the way archive size needed and fetched are calculated? The Needed value seems correct using archive sizes listed - (6898+290+334). I also use 7.10.

$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be upgraded:
  hpijs hplip hplip-data
3 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 7522kB of archives. <--- Initial size needed
After unpacking 0B of additional disk space will be used.
Do you want to continue [Y/n]?
Get:1 http://archive.ubuntu.com gutsy-updates/main hplip-data 2.7.7.dfsg.1-0ubuntu5.1 [6898kB]
Get:2 http://archive.ubuntu.com gutsy-updates/main hplip 2.7.7.dfsg.1-0ubuntu5.1 [290kB]
Get:3 http://archive.ubuntu.com gutsy-updates/main hpijs 2.7.7+2.7.7.dfsg.1-0ubuntu5.1 [334kB]
Fetched 7523kB in 6s (1078kB/s) <--- Actual size fetched
Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/h/hplip/hplip-data_2.7.7.dfsg.1-0ubuntu5.1_all.deb Size mismatch
Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/h/hplip/hplip_2.7.7.dfsg.1-0ubuntu5.1_i386.deb Size mismatch
Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/h/hplip/hpijs_2.7.7+2.7.7.dfsg.1-0ubuntu5.1_i386.deb Size mismatch
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?