You don't have enough free space in /var/cache/apt/archives/.

Hello, i am using Proxmox more than a year now for an Homeassistant installation.

Now i want to set up a new container and i saw that i can´t update the system.

I received the error "You don't have enough free space in /var/cache/apt/archives/."

I searched in the net and found some solutions with
"sudo apt clean"
"sudo apt autoremove"

The problem is sudo is not installed and if i try, i get the same message
You don't have enough free space in /var/cache/apt/archives/ to install sudo...

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