Upgrade error

[Cagurtay]

Hello,
i just installed xubuntu and tried to update it and there is an upgrade to 11.10 and another 150mb update, i picked upgrade but i get this error
W:Failed to fetch gzip:/var/lib/apt/lists/partial/tr.archive.ubuntu.com_ubuntu_dists_oneiric_univers e_source_Sources Hash Sum mismatch
, W:Failed to fetch gzip:/var/lib/apt/lists/partial/tr.archive.ubuntu.com_ubuntu_dists_oneiric_main_bi nary-i386_Packages Hash Sum mismatch
, E:Some index files failed to download. They have been ignored, or old ones used instead.
My internet is working as i am writing this in xubuntu.
any ideas?
ty.

[Cagurtay]

my sudo apt-get update result.


Ign http://tr.archive.ubuntu.com natty InRelease
Ign http://tr.archive.ubuntu.com natty-updates InRelease
Hit http://tr.archive.ubuntu.com natty Release.gpg
Hit http://tr.archive.ubuntu.com natty-updates Release.gpg
Hit http://tr.archive.ubuntu.com natty Release
Hit http://tr.archive.ubuntu.com natty-updates Release
Hit http://tr.archive.ubuntu.com natty/main Sources
Hit http://tr.archive.ubuntu.com natty/restricted Sources
Hit http://tr.archive.ubuntu.com natty/multiverse Sources
Hit http://tr.archive.ubuntu.com natty/restricted i386 Packages
Hit http://tr.archive.ubuntu.com natty/multiverse i386 Packages
Ign http://tr.archive.ubuntu.com natty/main TranslationIndex
Ign http://tr.archive.ubuntu.com natty/multiverse TranslationIndex
Ign http://tr.archive.ubuntu.com natty/restricted TranslationIndex
Ign http://tr.archive.ubuntu.com natty/universe TranslationIndex
Hit http://tr.archive.ubuntu.com natty-updates/main Sources
Hit http://tr.archive.ubuntu.com natty-updates/restricted Sources
Hit http://tr.archive.ubuntu.com natty-updates/universe Sources
Hit http://tr.archive.ubuntu.com natty-updates/multiverse Sources
Hit http://tr.archive.ubuntu.com natty-updates/main i386 Packages
Hit http://tr.archive.ubuntu.com natty-updates/restricted i386 Packages
Hit http://tr.archive.ubuntu.com natty-updates/universe i386 Packages
Hit http://tr.archive.ubuntu.com natty-updates/multiverse i386 Packages
Ign http://tr.archive.ubuntu.com natty-updates/main TranslationIndex
Ign http://tr.archive.ubuntu.com natty-updates/multiverse TranslationIndex
Ign http://tr.archive.ubuntu.com natty-updates/restricted TranslationIndex
Ign http://tr.archive.ubuntu.com natty-updates/universe TranslationIndex
Ign http://security.ubuntu.com natty-security InRelease
Ign http://extras.ubuntu.com natty InRelease
Hit http://security.ubuntu.com natty-security Release.gpg
Hit http://extras.ubuntu.com natty Release.gpg
Get:1 http://tr.archive.ubuntu.com natty/universe Sources [5,430 kB]
Hit http://security.ubuntu.com natty-security Release
Hit http://extras.ubuntu.com natty Release
Get:2 http://tr.archive.ubuntu.com natty/main i386 Packages [1,987 kB]
Hit http://security.ubuntu.com natty-security/main Sources
Hit http://extras.ubuntu.com natty/main Sources
Get:3 http://tr.archive.ubuntu.com natty/universe i386 Packages [7,755 kB]
Hit http://extras.ubuntu.com natty/main i386 Packages
Ign http://extras.ubuntu.com natty/main TranslationIndex
Hit http://security.ubuntu.com natty-security/restricted Sources
Hit http://security.ubuntu.com natty-security/universe Sources
Hit http://security.ubuntu.com natty-security/multiverse Sources
Hit http://security.ubuntu.com natty-security/main i386 Packages
Hit http://security.ubuntu.com natty-security/restricted i386 Packages
Hit http://security.ubuntu.com natty-security/universe i386 Packages
Hit http://security.ubuntu.com natty-security/multiverse i386 Packages
Ign http://security.ubuntu.com natty-security/main TranslationIndex
Ign http://security.ubuntu.com natty-security/multiverse TranslationIndex
Ign http://security.ubuntu.com natty-security/restricted TranslationIndex
Ign http://security.ubuntu.com natty-security/universe TranslationIndex
Ign http://tr.archive.ubuntu.com natty/main Translation-en_US
Ign http://tr.archive.ubuntu.com natty/main Translation-en
Ign http://tr.archive.ubuntu.com natty/multiverse Translation-en_US
Ign http://tr.archive.ubuntu.com natty/multiverse Translation-en
Ign http://tr.archive.ubuntu.com natty/restricted Translation-en_US
Ign http://tr.archive.ubuntu.com natty/restricted Translation-en
Ign http://tr.archive.ubuntu.com natty/universe Translation-en_US
Ign http://tr.archive.ubuntu.com natty/universe Translation-en
Ign http://tr.archive.ubuntu.com natty-updates/main Translation-en_US
Ign http://tr.archive.ubuntu.com natty-updates/main Translation-en
Ign http://tr.archive.ubuntu.com natty-updates/multiverse Translation-en_US
Ign http://tr.archive.ubuntu.com natty-updates/multiverse Translation-en
Ign http://tr.archive.ubuntu.com natty-updates/restricted Translation-en_US
Ign http://tr.archive.ubuntu.com natty-updates/restricted Translation-en
Ign http://tr.archive.ubuntu.com natty-updates/universe Translation-en_US
Ign http://tr.archive.ubuntu.com natty-updates/universe Translation-en
Ign http://extras.ubuntu.com natty/main Translation-en_US
Ign http://extras.ubuntu.com natty/main Translation-en
Ign http://security.ubuntu.com natty-security/main Translation-en_US
Ign http://security.ubuntu.com natty-security/main Translation-en
Ign http://security.ubuntu.com natty-security/multiverse Translation-en_US
Ign http://security.ubuntu.com natty-security/multiverse Translation-en
Ign http://security.ubuntu.com natty-security/restricted Translation-en_US
Ign http://security.ubuntu.com natty-security/restricted Translation-en
Ign http://security.ubuntu.com natty-security/universe Translation-en_US
Ign http://security.ubuntu.com natty-security/universe Translation-en
Fetched 3 B in 1s (2 B/s)
W: Failed to fetch gzip:/var/lib/apt/lists/partial/tr.archive.ubuntu.com_ubuntu_dists_natty_universe_ source_Sources Hash Sum mismatch

W: Failed to fetch gzip:/var/lib/apt/lists/partial/tr.archive.ubuntu.com_ubuntu_dists_natty_main_bina ry-i386_Packages Hash Sum mismatch

W: Failed to fetch gzip:/var/lib/apt/lists/partial/tr.archive.ubuntu.com_ubuntu_dists_natty_universe_ binary-i386_Packages Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones used instead.

[Cagurtay]

and i did
sudo rm -rf /var/lib/apt/lists/partial/*
from http://ubuntuforums.org/showthread.php?t=1817352&highlight=Hash+Sum+mismatch and got this :

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

[Cagurtay]

on second try at sudo rm -rf /var/lib/apt/lists/partial/* it fixed, sorry for bothering :popcorn:

[garvinrick4]

You are fixed up already, enjoy you Ubuntu

[Cagurtay]

yeah but now i couldnt boot after upgrade stucked at something that i cant remember, that happened after i tried upgrading ubuntu 11.04 too, fixed though.
i though linux , ubuntu much more stable than windows but those thing put me off :( , windows forever :)