Ubuntu 12.04: Why does apt-get update fail?

Question

i want to make one list split into list of lists, and skip the 'solid' and separate the list into sublist.

the input and output is below

split_s([A,B,C,solid,D,E,F],X).
X = [[A,B,C],[D,E,F]].

Can anyone help me?

Solution

Just remove the content of /var/lib/apt/lists directory:

sudo rm -fR /var/lib/apt/lists/*

then run:

sudo apt-get update

Source: Lorem's answer on Trouble downloading packages list due to a “Hash sum mismatch” error

Comments

[Anam Ahmed]

I had this problem before, fixed it by changing the protocol to ftp. try a mirror that supports ftp access. and if you are already using ftp, try a http mirror.

[Peter Hackman]

Can you please post me the apt sources list which you have used for it

[Peter Hackman]

I have tried with a changing the mirror to an ftp. but it fails, hope there could be some other work around

[Admin]

What modifications have you made to the OS? Your prompt looks a bit "different". Why are you trying to download both i386 and amd64 packages? Where did you get your .iso from?

[Peter Hackman]

apt-get failes due to the issue in wget. wget fails to download files. It downloads the files with 0 bytes. Anyone knows what could be the issue..

[CapelliC]

try ?- append([X,[solid],Y],[a,b,c,solid,d,e,f]).

[lurker]

Please show an attempt at a solution.

[Frederik Spang]

You're very welcome!

[false]

possible duplicate of filter list into separate lists

[halfbit]

@false: Oops thank you, should have seen that. See edit.

[Pei Chuang]

How can i get rid of the empty list in the result? @halfbit

[Bakuriu]

You have to properly attribute the answer. You have copy & pasted from here and according to SO license you have to 1) link to the original answer (which you have done) AND 2) attribute the original author with a link to its profile (which is missing).

[Frederik Spang]

Hi Bakuriu - If you actually look at, and read my answer, I have done exactly that.

[Scott Stensland]

this suggestion fails to help at all