SO my problem is this.

I was promoted to fix 2 broken packages in the synaptic, i was unsure of the the packages so i deleted the (big mistake)

When i logged into my computer i got the error message of zero disk space left. Usually i would delete some old kernals to fix this but i could not delete them because broken packages would not allow it.

So now when i turn on my computer it comes up with the usual log in

'' please unlock disk sda3_crypt

i enter my usual password and it takes me to another screen which shows

''unable to launch cinnamon- session- cinnamon X session ---
cinnamon-session-cinnamon not found: falling back to default session

there is an okay button to click and then i just get a black screen with the cursor

Can i recover everything i had saved on my desktop? I really need to recover this :-(

I messed up

Try to log in via a virtual console (Ctrl+Alt+F3), then

Thanks for the reply

at what stage do i bash this command? Ctrl+Alt+F3

Whatever i try i get this screen

''unable to launch cinnamon- session- cinnamon X session ---
cinnamon-session-cinnamon not found: falling back to default session

Before you log in.

error: can't find command 'sudo' :-(

What is your distribution? If you can log in as root (the superuser) then you don't need sudo.

Yes i am the only user, i have a USB with mint on, if i install will it bring back my files or totally wipe them and make new? Sorry i am not very tech savvy

Hold your horses.
What happens when you enter the key combination Ctrl-Alt-F3 - do you get to a text interface login prompt?
If so, log in as a normal user, with your normal credentials.

sorry for the slow reply

Ctrl-Alt-F3 brings up GNU GRUB

*Ubuntu
advanced options for Ubuntu
System set up

option fro C for commands and E for Edit the commands before booting

Thanks for your help

When at GRUB menu, under "Advanced options for Ubuntu" you should have an entry for booting in recovery mode. Try it.

From recovery mode i get some options like fix broken packages

There is one pop up that says i must get back into read only mode..............

But this below is the message i get when i try to boot up in recovery mode

''unable to launch cinnamon- session- cinnamon X session ---
cinnamon-session-cinnamon not found: falling back to default session

I feel like i have deleted everything??

Thanks for your help

Probably.

Perhaps a better question is why can you not recover "everything I had saved on my desktop" from your enternal backup.

If you do not have an external hard drive, then go out and get an external drive as at least as big as the internal HDD before you read any further. aka NOW!

By the way, keep your external drive up to date.

At this stage type

If your computer responds with an alphabet list, then all is good. Your information is still there and can be copied to your newly acquired external drive and it just a matter of copying your data to the external dive.

Edit to add. If your computer comes back with an alphabet list try

Your computer should then list your data. end edit.

Once the data is copied to the new external drive (which could take hours.... how many depends upon many things) you simply need delete one of your files.

If not the computer does not respond with an alphabet list, you have a big problem.

I reckon your root partition is full. Not that you have deleted everything.

Deleting everything would be a response to an instruction you gave the computer.

When you fix this problem, I suggest creating a separate /home partition....... Which I'll help with after you have your data on an external drive.

Thank you so much for your reply. I will follow your advice. What you explain is clear and reads exactly as my problem.
In lockdown right now so struggling to get an external hardrive :-/

But once i do get it i will update you here :-)

this '' I reckon your root partition is full. Not that you have deleted everything.''

I think you are correct as it usually says disk space running low after an update but this time it said zero disk space.
(i usually just delete some old kernels to resolve this)

Ok let's try! forever grateful