this is my sourcelist and system doesn't work. what should i do? thank you..

by the way i try to solve the problem for at least 2 days, but couldn't. since i am more or less new on linux, i got no idea..

Open a terminal and type:

gksudo gedit /etc/apt/sources.list

copy and paste the file content here...

thanks in advance marco. this is the content;

deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
and
deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
and
deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.

Please also tell the release of Ubuntu you are yousing... from terminal type:

lsb_release -rd

copy and paste the result back...

You sources.list are not good please restore standard repository generated from here

http://repogen.simplylinux.ch/

Description: Ubuntu 12.04 LTS
Release: 12.04

and the repogen result after generated the list

Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.imhkxOzMvS --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys 0624A220
gpg: requesting key 0624A220 from hkp server keyserver.ubuntu.com
gpg: key 0624A220: public key "Launchpad PPA for TualatriX" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
ahathatsright@ahathatsright:~$

The PPA doesn't support Precise
http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/

It only goes up to Natty. I suggest you remove the lines you added

actually i didn't add any line it's stupid but i just deleted line 2 which is not seen above and i don't know what it was!

thank you

hi andrew. what should i fo with link and natty?

thank you..

It's no good to you, you are using Precise.

i think that it's getting worse

E: Type 'and' is not known on line 2 in source list /etc/apt/sources.list
E: The list of sources could not be read.
Go to the repository dialog to correct the problem.
E: _cache->open() failed, please report.

W: Ignoring file 'Untitled Document 1' in directory '/etc/apt/sources.list.d/' as it has no filename extension
W: Ignoring file 'Untitled Document 2' in directory '/etc/apt/sources.list.d/' as it has no filename extension

ok, run:

sudo rm /etc/apt/sources.list.d/Untitled\ Document\ 1
sudo rm /etc/apt/sources.list.d/Untitled\ Document\ 2

Then run:

head -n 3 /etc/apt/sources.list; lsb_release -a

What is output?

Thanks

andrew, this is what i got;

ahathatsright@ahathatsright:~$ sudo rm /etc/apt/sources.list.d/Untitled\ Document\ 1
[sudo] password for ahathatsright:
ahathatsright@ahathatsright:~$ sudo rm /etc/apt/sources.list.d/Untitled\ Document\ 2
ahathatsright@ahathatsright:~$ head -n 3 /etc/apt/sources.list; lsb_release -a
deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
and
deb http://ppa.launchpad.net/audacity-team/daily/ubuntu precise main
LSB Version: core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise
ahathatsright@ahathatsright:~$

ok run:

gksudo gedit /etc/apt/sources.list

and delete the 2nd line which simply has the word 'and' on it (No idea why you have that). This is what is causing the issue.

Save the new file, close gedit and run:

sudo apt-get update

Should be smooth

i don't know if it's ok. but finally it started talking to me;

ahathatsright@ahathatsright:~$ gksudo gedit /etc/apt/sources.list
ahathatsright@ahathatsright:~$ sudo apt-get update
E: Type 'and' is not known on line 2 in source list /etc/apt/sources.list
N: Ignoring file 'Untitled Document 3' in directory '/etc/apt/sources.list.d/' as it has no filename extension
E: The list of sources could not be read.
ahathatsright@ahathatsright:~$ gksudo gedit /etc/apt/sources.list
ahathatsright@ahathatsright:~$ sudo apt-get update
Ign http://ppa.launchpad.net oneiric InRelease
Ign http://ppa.launchpad.net maverick InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://dl.google.com stable InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net oneiric Release.gpg
Get:1 http://ppa.launchpad.net maverick Release.gpg [316 B]
Get:2 http://dl.google.com stable Release.gpg [198 B]
Get:3 http://ppa.launchpad.net precise Release.gpg [316 B]
Get:4 http://ppa.launchpad.net precise Release.gpg [316 B]
Ign http://ppa.launchpad.net precise Release.gpg
Get:5 http://ppa.launchpad.net precise Release.gpg [316 B]
Get:6 http://dl.google.com stable Release [1,338 B]
Get:7 http://ppa.launchpad.net precise Release.gpg [316 B]
Ign http://ppa.launchpad.net oneiric Release
Get:8 http://ppa.launchpad.net maverick Release [9,746 B]
Get:9 http://ppa.launchpad.net precise Release [11.9 kB]
Ign http://ppa.launchpad.net maverick Release
Get:10 http://dl.google.com stable/main amd64 Packages [469 B]
Get:11 http://ppa.launchpad.net precise Release [11.9 kB]
Ign http://ppa.launchpad.net precise Release
Get:12 http://ppa.launchpad.net precise Release [11.9 kB]
Get:13 http://dl.google.com stable/main i386 Packages [464 B]
Ign http://dl.google.com stable/main TranslationIndex
Get:14 http://ppa.launchpad.net precise Release [11.9 kB]
Ign http://ppa.launchpad.net oneiric/main TranslationIndex
Get:15 http://ppa.launchpad.net maverick/main amd64 Packages [8,934 B]
Get:16 http://ppa.launchpad.net maverick/main i386 Packages [8,945 B]
Ign http://ppa.launchpad.net maverick/main TranslationIndex
Get:17 http://ppa.launchpad.net precise/main Sources [491 B]
Get:18 http://ppa.launchpad.net precise/main amd64 Packages [432 B]
Get:19 http://ppa.launchpad.net precise/main i386 Packages [432 B]
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://ppa.launchpad.net precise/main TranslationIndex
Get:20 http://ppa.launchpad.net precise/main Sources [14 B]
Get:21 http://ppa.launchpad.net precise/main amd64 Packages [14 B]
Get:22 http://ppa.launchpad.net precise/main i386 Packages [14 B]
Ign http://ppa.launchpad.net precise/main TranslationIndex
Get:23 http://ppa.launchpad.net precise/main Sources [1,056 B]
Get:24 http://ppa.launchpad.net precise/main amd64 Packages [1,249 B]
Get:25 http://ppa.launchpad.net precise/main i386 Packages [1,260 B]
Ign http://ppa.launchpad.net precise/main TranslationIndex
Get:26 http://ppa.launchpad.net precise/main Sources [1,121 B]
Get:27 http://ppa.launchpad.net precise/main amd64 Packages [2,026 B]
Get:28 http://ppa.launchpad.net precise/main i386 Packages [2,026 B]
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://dl.google.com stable/main Translation-en_US
Ign http://dl.google.com stable/main Translation-en
Err http://ppa.launchpad.net oneiric/main amd64 Packages
  404 Not Found
Err http://ppa.launchpad.net oneiric/main i386 Packages
  404 Not Found
Err http://ppa.launchpad.net maverick/main. Sources
  404 Not Found
Err http://ppa.launchpad.net precise/main Sources
  404 Not Found
Err http://ppa.launchpad.net precise/main amd64 Packages
  404 Not Found
Err http://ppa.launchpad.net precise/main i386 Packages
  404 Not Found
Ign http://ppa.launchpad.net oneiric/main Translation-en_US
Ign http://ppa.launchpad.net oneiric/main Translation-en
Ign http://ppa.launchpad.net maverick/main Translation-en_US
Ign http://ppa.launchpad.net maverick/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Fetched 89.3 kB in 2s (30.7 kB/s)
N: Ignoring file 'Untitled Document 3' in directory '/etc/apt/sources.list.d/' as it has no filename extension
W: GPG error: http://ppa.launchpad.net maverick Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4EA3A911D48B8E25
W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/oneiric/main/binary-amd64/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/maverick/main./source/Sources 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found

E: Some index files failed to download. They have been ignored, or old ones used instead.
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
ahathatsright@ahathatsright:~$

http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/

The PPA doesn't support Precise. I suggest you remove it.

Can you give the output of:

grep -R oneiric /etc/apt/*; grep -R maverick /etc/apt/*

Thanks

http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/

The PPA doesn't support Precise. I suggest you remove it.

Can you give the output of:

grep -R oneiric /etc/apt/*; grep -R maverick /etc/apt/*

Thanks

output ;

ahathatsright@ahathatsright:~$ grep -R oneiric /etc/apt/*; grep -R maverick /etc/apt/*
/etc/apt/sources.list:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list~:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.backup:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.2:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.2:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
grep: /etc/apt/trustdb.gpg: Permission denied
/etc/apt/sources.list:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list~:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list~:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.backup:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.backup:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.save:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.save:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.save.1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.save.1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.save.2:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.save.2:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
grep: /etc/apt/trustdb.gpg: Permission denied
ahathatsright@ahathatsright:~$

thank you, andrew

thank you, now i can open synaptic app manager but when i wanted it updated, this is the result that i got.

Ignoring file 'Untitled Document 3' in directory '/etc/apt/sources.list.d/' as it has no filename extensionIgnoring file 'Untitled Document 3' in directory '/etc/apt/sources.list.d/' as it has no filename extensionIgnoring file 'Untitled Document 3' in directory '/etc/apt/sources.list.d/' as it has no filename extensionGPG error: http://ppa.launchpad.net maverick Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4EA3A911D48B8E25Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/oneiric/main/binary-amd64/Packages 404 Not Found
Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found
Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/maverick/main./source/Sources 404 Not Found
Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found
Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found
Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found
Some index files failed to download. They have been ignored, or old ones used instead.

btw. how can i take my software center back?

If you run:

gksudo gedit /etc/apt/sources.list

Remove the lines you have outputted in #17

this is my list andrew. if i remove the lines output #17, i ll have to clean all.. is this correct? my ubuntu is turning back to life that's whay i'm just scared. thank you.

deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.

i am afraid not;

E: Type 'http://paste.ubuntu.com/998617/' is not known on line 1 in source list /etc/apt/sources.list
N: Ignoring file 'Untitled Document 3' in directory '/etc/apt/sources.list.d/' as it has no filename extension
E: The list of sources could not be read.
ahathatsright@ahathatsright:~$

sudo rm /etc/apt/sources.list.d/Untitled\ Document\ 3

What have you been doing with your system!?

You don't add that url to the file, If you CLICK the link you will find a DEFAULT sources.list file for precise which you can replace your botched file with.

as far as i remember, i was just trying to find a solution to make "wine" work.. but i'm not sure cause for three days, i just fight with this problem..

i copied the list from your link then pasted it to my sources.list...

how can i understand if it's ok? i can reach the synaptic package manager but still, can't see software center..

now, waiting for

sudo apt-get update

to finish

and this is the output;

ahathatsright@ahathatsright:~$ sudo apt-get update
Ign http://archive.canonical.com precise InRelease
Ign http://dl.google.com stable InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Ign http://extras.ubuntu.com precise InRelease
Ign http://security.ubuntu.com precise-security InRelease
Get:1 http://dl.google.com stable Release.gpg [198 B]
Get:2 http://archive.canonical.com precise Release.gpg [198 B]
Ign http://ppa.launchpad.net precise InRelease
Ign http://ppa.launchpad.net precise InRelease
Hit http://ppa.launchpad.net precise Release.gpg
Get:3 http://extras.ubuntu.com precise Release.gpg [72 B]
Get:4 http://security.ubuntu.com precise-security Release.gpg [198 B]
Get:5 http://dl.google.com stable Release [1,338 B]
Ign http://gb.archive.ubuntu.com precise InRelease
Ign http://gb.archive.ubuntu.com precise-updates InRelease
Ign http://gb.archive.ubuntu.com precise-backports InRelease
Get:6 http://archive.canonical.com precise Release [7,078 B]
Get:7 http://security.ubuntu.com precise-security Release [49.6 kB]
Hit http://ppa.launchpad.net precise Release.gpg
Get:8 http://extras.ubuntu.com precise Release [11.9 kB]
Get:9 http://gb.archive.ubuntu.com precise Release.gpg [198 B]
Get:10 http://archive.canonical.com precise/partner Sources [3,417 B]
Get:11 http://gb.archive.ubuntu.com precise-updates Release.gpg [198 B]
Get:12 http://archive.canonical.com precise/partner amd64 Packages [4,328 B]
Get:13 http://archive.canonical.com precise/partner i386 Packages [4,999 B]
Ign http://archive.canonical.com precise/partner TranslationIndex
Get:14 http://gb.archive.ubuntu.com precise-backports Release.gpg [198 B]
Get:15 http://security.ubuntu.com precise-security/main Sources [8,976 B]
Get:16 http://gb.archive.ubuntu.com precise Release [49.6 kB]
Get:17 http://extras.ubuntu.com precise/main Sources [476 B]
Get:18 http://security.ubuntu.com precise-security/restricted Sources [14 B]
Get:19 http://security.ubuntu.com precise-security/universe Sources [4,063 B]
Get:20 http://extras.ubuntu.com precise/main amd64 Packages [546 B]
Get:21 http://extras.ubuntu.com precise/main i386 Packages [555 B]
Ign http://extras.ubuntu.com precise/main TranslationIndex
Get:22 http://dl.google.com stable/main amd64 Packages [469 B]
Get:23 http://security.ubuntu.com precise-security/multiverse Sources [696 B]
Get:24 http://security.ubuntu.com precise-security/main amd64 Packages [34.9 kB]
Get:25 http://security.ubuntu.com precise-security/restricted amd64 Packages [14 B]
Get:26 http://security.ubuntu.com precise-security/universe amd64 Packages [9,409 B]
Get:27 http://security.ubuntu.com precise-security/multiverse amd64 Packages [1,142 B]
Get:28 http://gb.archive.ubuntu.com precise-updates Release [49.6 kB]
Ign http://ppa.launchpad.net precise Release.gpg
Hit http://ppa.launchpad.net precise Release.gpg
Get:29 http://ppa.launchpad.net precise Release.gpg [316 B]
Hit http://ppa.launchpad.net precise Release
Get:30 http://dl.google.com stable/main i386 Packages [464 B]
Get:31 http://security.ubuntu.com precise-security/main i386 Packages [35.0 kB]
Hit http://ppa.launchpad.net precise Release
Ign http://ppa.launchpad.net precise Release
Get:32 http://gb.archive.ubuntu.com precise-backports Release [49.6 kB]
Get:33 http://security.ubuntu.com precise-security/restricted i386 Packages [14 B]
Get:34 http://security.ubuntu.com precise-security/universe i386 Packages [9,409 B]
Hit http://ppa.launchpad.net precise Release
Get:35 http://ppa.launchpad.net precise Release [11.9 kB]
Get:36 http://gb.archive.ubuntu.com precise/main Sources [934 kB]
Get:37 http://security.ubuntu.com precise-security/multiverse i386 Packages [1,393 B]
Get:38 http://security.ubuntu.com precise-security/main TranslationIndex [73 B]
Get:39 http://security.ubuntu.com precise-security/multiverse TranslationIndex [71 B]
Get:40 http://security.ubuntu.com precise-security/restricted TranslationIndex [70 B]
Get:41 http://security.ubuntu.com precise-security/universe TranslationIndex [72 B]
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://ppa.launchpad.net precise/main TranslationIndex
Get:42 http://security.ubuntu.com precise-security/main Translation-en [15.3 kB]
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Ign http://archive.canonical.com precise/partner Translation-en_US
Hit http://ppa.launchpad.net precise/main Sources
Hit http://ppa.launchpad.net precise/main amd64 Packages
Hit http://ppa.launchpad.net precise/main i386 Packages
Ign http://ppa.launchpad.net precise/main TranslationIndex
Get:43 http://ppa.launchpad.net precise/main Sources [1,314 B]
Ign http://archive.canonical.com precise/partner Translation-en
Get:44 http://ppa.launchpad.net precise/main amd64 Packages [2,161 B]
Get:45 http://ppa.launchpad.net precise/main i386 Packages [2,161 B]
Ign http://ppa.launchpad.net precise/main TranslationIndex
Get:46 http://security.ubuntu.com precise-security/multiverse Translation-en [587 B]
Get:47 http://security.ubuntu.com precise-security/restricted Translation-en [14 B]
Ign http://extras.ubuntu.com precise/main Translation-en_US
Get:48 http://security.ubuntu.com precise-security/universe Translation-en [7,053 B]
Ign http://extras.ubuntu.com precise/main Translation-en
Err http://ppa.launchpad.net precise/main Sources
  404 Not Found
Err http://ppa.launchpad.net precise/main amd64 Packages
  404 Not Found
Err http://ppa.launchpad.net precise/main i386 Packages
  404 Not Found
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Ign http://ppa.launchpad.net precise/main Translation-en_US
Ign http://ppa.launchpad.net precise/main Translation-en
Get:49 http://gb.archive.ubuntu.com precise/restricted Sources [5,470 B]
Get:50 http://gb.archive.ubuntu.com precise/universe Sources [5,019 kB]
Ign http://dl.google.com stable/main TranslationIndex
Ign http://dl.google.com stable/main Translation-en_US
Ign http://dl.google.com stable/main Translation-en
Get:51 http://gb.archive.ubuntu.com precise/multiverse Sources [155 kB]
Get:52 http://gb.archive.ubuntu.com precise/main amd64 Packages [1,273 kB]
Get:53 http://gb.archive.ubuntu.com precise/restricted amd64 Packages [8,452 B]
Get:54 http://gb.archive.ubuntu.com precise/universe amd64 Packages [4,786 kB]
Get:55 http://gb.archive.ubuntu.com precise/multiverse amd64 Packages [119 kB]
Get:56 http://gb.archive.ubuntu.com precise/main i386 Packages [1,274 kB]
Get:57 http://gb.archive.ubuntu.com precise/restricted i386 Packages [8,431 B]
Get:58 http://gb.archive.ubuntu.com precise/universe i386 Packages [4,796 kB]
Get:59 http://gb.archive.ubuntu.com precise/multiverse i386 Packages [121 kB]
Get:60 http://gb.archive.ubuntu.com precise/main TranslationIndex [3,706 B]
Get:61 http://gb.archive.ubuntu.com precise/multiverse TranslationIndex [2,676 B]
Get:62 http://gb.archive.ubuntu.com precise/restricted TranslationIndex [2,596 B]
Get:63 http://gb.archive.ubuntu.com precise/universe TranslationIndex [2,922 B]
Get:64 http://gb.archive.ubuntu.com precise-updates/main Sources [41.7 kB]
Get:65 http://gb.archive.ubuntu.com precise-updates/restricted Sources [1,379 B]
Get:66 http://gb.archive.ubuntu.com precise-updates/universe Sources [12.3 kB]
Get:67 http://gb.archive.ubuntu.com precise-updates/multiverse Sources [696 B]
Get:68 http://gb.archive.ubuntu.com precise-updates/main amd64 Packages [110 kB]
Get:69 http://gb.archive.ubuntu.com precise-updates/restricted amd64 Packages [2,417 B]
Get:70 http://gb.archive.ubuntu.com precise-updates/universe amd64 Packages [34.2 kB]
Get:71 http://gb.archive.ubuntu.com precise-updates/multiverse amd64 Packages [1,142 B]
Get:72 http://gb.archive.ubuntu.com precise-updates/main i386 Packages [112 kB]
Get:73 http://gb.archive.ubuntu.com precise-updates/restricted i386 Packages [2,439 B]
Get:74 http://gb.archive.ubuntu.com precise-updates/universe i386 Packages [34.4 kB]
Get:75 http://gb.archive.ubuntu.com precise-updates/multiverse i386 Packages [1,393 B]
Get:76 http://gb.archive.ubuntu.com precise-updates/main TranslationIndex [73 B]
Get:77 http://gb.archive.ubuntu.com precise-updates/multiverse TranslationIndex [71 B]
Get:78 http://gb.archive.ubuntu.com precise-updates/restricted TranslationIndex [71 B]
Get:79 http://gb.archive.ubuntu.com precise-updates/universe TranslationIndex [73 B]
Get:80 http://gb.archive.ubuntu.com precise-backports/main Sources [700 B]
Get:81 http://gb.archive.ubuntu.com precise-backports/restricted Sources [14 B]
Get:82 http://gb.archive.ubuntu.com precise-backports/universe Sources [2,696 B]
Get:83 http://gb.archive.ubuntu.com precise-backports/multiverse Sources [14 B]
Get:84 http://gb.archive.ubuntu.com precise-backports/main amd64 Packages [559 B]
Get:85 http://gb.archive.ubuntu.com precise-backports/restricted amd64 Packages [14 B]
Get:86 http://gb.archive.ubuntu.com precise-backports/universe amd64 Packages [2,371 B]
Get:87 http://gb.archive.ubuntu.com precise-backports/multiverse amd64 Packages [14 B]
Get:88 http://gb.archive.ubuntu.com precise-backports/main i386 Packages [559 B]
Get:89 http://gb.archive.ubuntu.com precise-backports/restricted i386 Packages [14 B]
Get:90 http://gb.archive.ubuntu.com precise-backports/universe i386 Packages [2,379 B]
Get:91 http://gb.archive.ubuntu.com precise-backports/multiverse i386 Packages [14 B]
Get:92 http://gb.archive.ubuntu.com precise-backports/main TranslationIndex [71 B]
Get:93 http://gb.archive.ubuntu.com precise-backports/multiverse TranslationIndex [70 B]
Get:94 http://gb.archive.ubuntu.com precise-backports/restricted TranslationIndex [70 B]
Get:95 http://gb.archive.ubuntu.com precise-backports/universe TranslationIndex [72 B]
Get:96 http://gb.archive.ubuntu.com precise/main Translation-en [726 kB]
Get:97 http://gb.archive.ubuntu.com precise/multiverse Translation-en [93.4 kB]
Get:98 http://gb.archive.ubuntu.com precise/restricted Translation-en [2,395 B]
Get:99 http://gb.archive.ubuntu.com precise/universe Translation-en [3,341 kB]
Get:100 http://gb.archive.ubuntu.com precise-updates/main Translation-en [53.7 kB]
Get:101 http://gb.archive.ubuntu.com precise-updates/multiverse Translation-en [587 B]
Get:102 http://gb.archive.ubuntu.com precise-updates/restricted Translation-en [798 B]
Get:103 http://gb.archive.ubuntu.com precise-updates/universe Translation-en [21.4 kB]
Get:104 http://gb.archive.ubuntu.com precise-backports/main Translation-en [308 B]
Get:105 http://gb.archive.ubuntu.com precise-backports/multiverse Translation-en [14 B]
Get:106 http://gb.archive.ubuntu.com precise-backports/restricted Translation-en [14 B]
Get:107 http://gb.archive.ubuntu.com precise-backports/universe Translation-en [1,477 B]
Fetched 23.5 MB in 3min 14s (121 kB/s)
W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found

W: Failed to fetch http://ppa.launchpad.net/pmcenery/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found

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

ok run:

grep -R pmcenery /etc/apt/*

What is output?

ahathatsright@ahathatsright:~$ grep -R pmcenery /etc/apt/*
/etc/apt/sources.list1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.backup:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.backup:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.backup:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.d/pmcenery-ppa-precise.list.save:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu precise main
/etc/apt/sources.list.d/pmcenery-ppa-precise.list.save:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu precise main
/etc/apt/sources.list.d/pmcenery-ppa-precise.list:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu precise main
/etc/apt/sources.list.d/pmcenery-ppa-precise.list:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu precise main
/etc/apt/sources.list.save:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.save:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.save.1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.1:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.save.1:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
/etc/apt/sources.list.save.2:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.2:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu oneiric main
/etc/apt/sources.list.save.2:deb http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main
/etc/apt/sources.list.save.2:deb-src http://ppa.launchpad.net/pmcenery/ppa/ubuntu maverick main.
grep: /etc/apt/trustdb.gpg: Permission denied
ahathatsright@ahathatsright:~$

ok run:

sudo rm /etc/apt/sources.list.d/pmcenery-ppa-precise.list
sudo rm /etc/apt/sources.list.d/pmcenery-ppa-precise.list.save
sudo rm /etc/apt/sources.list.save.2
sudo rm /etc/apt/sources.list.save.1
sudo rm /etc/apt/sources.list.backup

then run:

sudo apt-get update

Is it smooth?

thank you for your precious time and great help andrew... it's smooth...

Thanks actionparsnip, that solved my question.