I have a dual boot laptop,in my first partition windows are installed and in the second one I have installed Ubuntu.

when I try to boot into Ubuntu, I face a message saying that:

started user manager for UID 121

I did some search on that and I understood that I have to reinstall drivers for my NVIDIA GPU.

When I try to do it I face a message saying that:

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

I have tried everything... Any ideas ? How can I free some space at my archives?

Output for df -h picture:

enter image description here

  • Comments are not for extended discussion; this conversation has been moved to chat.
    – Thomas Ward
    Mar 30, 2020 at 15:06

1 Answer 1


First, As it appears your root directory ( partition ) / is 100% full. So you will need to free some space. Please boot into the recovery mode as described in the linked answer below and follow these steps one by one and check your disk space until you can see some free space:

  1. Clean the apt cache:
sudo apt clean
  1. Empty the /tmp directory:
sudo find /tmp/{*,.??*} -exec rm -rf {} \;
  1. Delete old log files:
sudo find /var/log -type f -name "*.gz" -delete
  1. Remove old kernels:
sudo apt autoremove --purge
  1. List large files ( 1 GB or more ) and delete the least important ones:
sudo du -hca --time / | grep -E "^[0-9\.]*[G]"

Then, you can follow the instructions in this answer to fix the issue preventing Ubuntu from booting into the desktop.

Best of luck

  • This saved my day. Thanks a lot!!
    – roronoa
    Aug 18, 2023 at 3:16

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