Trying to install letsencrypt on ubuntu 12.04 using certbot-auto program, but getting 404 errors when it does apt-get update

Question

I'm trying to install letsencrypt on my ubuntu 12.04, but i'm getting these 404 errors that i'm not too sure how to resolve them.

I don't understand why this happens all the time for me. I install something awhile back and it works fine, but overtime these things disappear for some reason. Can someone explain to me why does this happen, when someone releases an app, why don't they just include all the necessary files with the package being installed instead of downloading it on the spot?

Bootstrapping dependencies for Debian-based OSes...
Hit http://ppa.launchpad.net precise Release.gpg
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Get:2 http://archive.ubuntu.com precise-updates Release.gpg [198 B]
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Get:4 http://security.ubuntu.com precise-security Release [55.5 kB]
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  404  Not Found
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Get:27 http://archive.ubuntu.com precise-updates/universe i386 Packages [296 kB]
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Fetched 5,629 kB in 7s (727 kB/s)
apt-get update hit problems but continuing anyway...
Reading package lists...
Building dependency tree...
Reading state information...
gcc is already the newest version.
gcc set to manually installed.
python is already the newest version.
python-dev is already the newest version.
python-dev set to manually installed.
augeas-lenses is already the newest version.
libaugeas0 is already the newest version.
The following packages were automatically installed and are no longer required:
  apache2-mpm-prefork apache2.2-common apache2.2-bin
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  libssl1.0.2 python-setuptools
Recommended packages:
  python-pip
The following NEW packages will be installed:
  libffi-dev libssl1.0.2 python-setuptools python-virtualenv
The following packages will be upgraded:
  ca-certificates libssl-dev openssl
3 upgraded, 4 newly installed, 0 to remove and 234 not upgraded.
Need to get 4,312 kB/7,169 kB of archives.
After this operation, 8,584 kB of additional disk space will be used.
Do you want to continue [Y/n]? WARNING: The following packages cannot be authenticated!
  libssl1.0.2 openssl libssl-dev
Install these packages without verification [y/N]? Err http://ppa.launchpad.net/ondrej/php5/ubuntu/ precise/main libssl1.0.2 amd64 1.0.2h-1+deb.sury.org~precise+1
  404  Not Found
Err http://ppa.launchpad.net/ondrej/php5/ubuntu/ precise/main openssl amd64 1.0.2h-1+deb.sury.org~precise+1
  404  Not Found
Err http://ppa.launchpad.net/ondrej/php5/ubuntu/ precise/main libssl-dev amd64 1.0.2h-1+deb.sury.org~precise+1
  404  Not Found
0

Answer 1

You've got a bad ppa repository. This sometimes happens over time. It typically means that the software author is no longer supporting their software (libssl1.0.2, openssl, libssl-dev), and removes the files at their end.

In terminal...

cd /etc/apt               # change directory
grep ondrej sources.list  # search for ondrej

if this grep returns an answer, then...

sudo gksudo gedit /etc/apt/sources.list  # edit the file

and place a # at the front of the offending line. Save the file and quit gedit.

Next we'll search in all *.list files...

cd /etc/apt/sources.list.d  # change directory
grep ondrej *.list          # search for a {filename}.list

You'll probably only get one filename as the output of the grep command. Note the filename. Next we'll delete that file...

sudo rm -i /etc/apt/sources.list.d/enter_filename_here.list