Server 12.04.04 upgrade to 14.04 didnt work

[Jānis Kangarooo]

tryd many times. didnt work
sudo apt-get update
sudo apt-get upgrade
do-release-upgrade -d

root@Kangarooo:~# do-release-upgrade -d
Checking for a new Ubuntu release
Get:1 Upgrade tool signature [198 B]
Get:2 Upgrade tool [1,148 kB]
Fetched 1,148 kB in 0s (0 B/s)
authenticate 'trusty.tar.gz' against 'trusty.tar.gz.gpg'
extracting 'trusty.tar.gz'
Hit http://us.archive.ubuntu.com trusty/universe i386 Packages
Hit http://us.archive.ubuntu.com trusty/universe TranslationIndex
Hit http://security.ubuntu.com trusty-security Release
Hit http://us.archive.ubuntu.com trusty-updates/universe amd64 Packages
Hit http://us.archive.ubuntu.com trusty-updates/main amd64 Packages
Hit http://us.archive.ubuntu.com trusty-updates/universe i386 Packages
Hit http://us.archive.ubuntu.com trusty-updates/main i386 Packages
Hit http://us.archive.ubuntu.com trusty-updates/main TranslationIndex
Hit http://us.archive.ubuntu.com trusty-updates/universe TranslationIndex
Hit http://us.archive.ubuntu.com trusty/universe Translation-en
Hit http://us.archive.ubuntu.com trusty-updates/main Translation-en
Hit http://security.ubuntu.com trusty-security/universe amd64 Packages
Hit http://security.ubuntu.com trusty-security/main amd64 Packages
Hit http://security.ubuntu.com trusty-security/universe i386 Packages
Hit http://security.ubuntu.com trusty-security/main i386 Packages
Hit http://security.ubuntu.com trusty-security/main TranslationIndex
Hit http://security.ubuntu.com trusty-security/universe TranslationIndex
Hit http://us.archive.ubuntu.com trusty-updates/universe Translation-en
Hit http://security.ubuntu.com trusty-security/main Translation-en
Hit http://security.ubuntu.com trusty-security/universe Translation-en
Fetched 1 B in 0s (0 B/s)

Error during update

A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.

W:Failed to fetch
gzip:/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_trusty_main_binary-i386_Packages
Hash Sum mismatch
, E:Some index files failed to download. They have been ignored, or
old ones used instead.

Restoring original system state

Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done
=== Command detached from window (Mon Apr 21 12:36:37 2014) ===
=== Command terminated with exit status 1 (Mon Apr 21 12:36:37 2014) ===