Unable to locate package libssl1.1

I am trying to install this dependency but keep getting this error message:

This is what I put in the terminal:

sudo apt install libssl1.1

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
E: Unable to locate package libssl1.1
E: Couldn't find any package by glob 'libssl1.1'

How to get libssl1.1

I am very new to linux so I have no idea if this is an obvious question.

I am using ubuntu 22.04 lts

3 Answers

Although I think the advice given by Artur is good. I managed to resolve this for a legacy app (specifically easytether-usb) by grabbing libcrypto.so.1.1 from the 1.1 install as referenced by @Nishant in his answer. I installed that in user space under my home directory and created a sym link to it in /lib/libcrypto.so.1.1:

sudo ln -s ~/openssl/lib/libcrypto.so.1.1 /lib/libcrypto.so.1.1

You can normally add ~/openss/lib to the LD_LIBRARY_PATH for the specific application in question, but in my case the leacy app didn't properly look in $LD_LIBRARY_PATH, so I had to find out where it was looking for libcrypto.so.1.1, I did that with the following:

sudo strace -e trace=open,openat,close,read,write,connect,accept easytether-usb

That showed me a dozen or so attempts to find the file libcrypto.so.1.1 in various locations, which is why I knew to add the sym link to /lib/ above.

After that the legacy app fired up and worked like normal. Other uses cases will likely need other shared libraries. the strace command above should help determine what's needed.

here you go! use this link if you want to download libss.

Ubuntu 22.04 uses libssl3, and thus libssl1.1 is deprecated at this point.

Creating a new package for Ubuntu 22.04 that uses an obsolete libssl version seems like a very bad idea. Also, messing with versions for systemwide libraries like libssl is a similarly a very bad idea, which may have unpredictable consequences in the future.

So one option is that if you will continue to use Ubuntu 22.04, you should convert into using libssl3 for your apps.

Another option is to run legacy apps inside a VM or container, where you could install an older version of Ubuntu (e.g. 20.04) that has libssl1.1 installed.

These two options seem to be the most viable paths to take in your situation.