Errors when installing certbot/Let's Encrypt

adoran2 2017-09-25 22:20:21 UTC #1

I'm having problems with getting certbot installed. I'm running an Ubuntu 14 server on Amazon EC2, running a Bitnami Wordpress image alongside some static web pages. I'm following the detailed instructions at https://docs.bitnami.com/aws/components/apache/#how-to-install-the-certbot-client-for-the-lets-encrypt-certificate-authority. When I get to this part:

$ cd certbot
$ ./certbot-auto

It chugs away and then fails with the error messages:

Creating virtual environment...
Installing Python packages...
/opt/eff.org/certbot/venv/bin/python: error while loading shared libraries: libreadline.so.5: cannot open shared object file: No such file or directory

What am I doing wrong?

jorgemarin 2017-09-26 11:08:31 UTC #2

Hi @adoran2
libreadline may not be globally installed.
You can load the Bitnami environment or install libreadline:

/opt/bitnami/use_wordpress
# or
# apt-get install libreadline5-dev
cd certbot
./certbot-auto

Tell me if it worked for you and we will update the documentation accordingly.

Regards,
Jorge

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adoran2 2017-09-26 12:02:42 UTC #3

Thanks for the response. I don't have a directory at /opt/bitnami/use_wordpress?

Typing 'apt-get install libreadline5-dev' tells me that:

E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

If I do 'sudo su' and try again I get the following:

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package libreadline5-dev is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
libreadline-gplv2-dev

E: Package 'libreadline5-dev' has no installation candidate

Will libreadline-gplv2-dev do the job and do I need to have elevated privileges to install it?

Thanks again.

jorgemarin 2017-09-27 08:52:35 UTC #4

Hi @adoran2
To load the Bitnami environment, issue the following command:

sudo /opt/bitnami/use_wordpress

I confirmed the file is present in a Bitnami WordPress launched using the Bitnami AWS Launchpad. It should be there, it is just you probably had to have root permissions. Then try to install certbot.

If the same error (libreadline) still shows up, try installing the package.
The package libreadline-dev should do the trick. I mistakenly added an extra '5' to the name.

Hope it helps.
Regards,
Jorge

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adoran2 2017-09-27 10:09:06 UTC #5

Thanks again Jorge. Unfortunately 'use_wordpress' isn't present in the bitnami folder? I get a 'command not found' error.

jorgemarin 2017-09-27 10:27:50 UTC #6

Hi @adoran2
Could you clarify your environment?
Did you launched a Bitnami WordPress image from AWS EC2 community AMIs?
Did you launched a Bitnami WordPress image from AWS Marketplace?
Did you launched an Ubuntu Server image from AWS and then installed a WordPress Stack?

What is your Bitnami WordPress installation directory?

Regards,
Jorge

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