Hi,
i'm a new user of Kali Linux, starting with the Kali Linux Training guide.

I'm trying to upgrade with
sudo apt-get upgrade
but i've got this error
Code:
ldconfig: Writing of cache data failed: No space left on device
dpkg: erreur de traitement du paquet libc-bin (--configure) :
 installed libc-bin package post-installation script subprocess returned error exit status 1
Des erreurs ont ?t? rencontr?es pendant l'ex?cution :
 libc-bin
E: Sub-process /usr/bin/dpkg returned an error code (1)
Following some advice on internet, i've this result after the command
sudo df -h | grep G
Code:
udev                            3,8G       0  3,8G   0% /dev
/dev/mapper/user--pc--vg-root    11G     11G     0 100% /
tmpfs                           3,9G     38M  3,8G   1% /dev/shm
/dev/mapper/user--pc--vg-tmp    1,8G    5,7M  1,7G   1% /tmp
/dev/mapper/user--pc--vg-var    2,3G    933M  1,2G  44% /var
/dev/mapper/user--pc--vg-home   899G     70G  784G   9% /home
for the ls -l /dev/mapper
Code:
total 0
crw------- 1 root root 10, 236 ao?t  25 09:38 control
lrwxrwxrwx 1 root root       7 ao?t  25 09:38 sda3_crypt -> ../dm-0
lrwxrwxrwx 1 root root       7 ao?t  25 09:38 user--pc--vg-home -> ../dm-5
lrwxrwxrwx 1 root root       7 ao?t  25 09:38 user--pc--vg-root -> ../dm-1
lrwxrwxrwx 1 root root       7 ao?t  25 09:38 user--pc--vg-swap_1 -> ../dm-3
lrwxrwxrwx 1 root root       7 ao?t  25 09:38 user--pc--vg-tmp -> ../dm-4
lrwxrwxrwx 1 root root       7 ao?t  25 09:38 user--pc--vg-var -> ../dm-2
and for du --exclude="/home" -x -h -a / | sort -r -h | head -10
Code:
11G    /usr
11G    /
5,4G    /usr/lib
4,5G    /usr/share
1,6G    /usr/lib/x86_64-linux-gnu
1,2G    /usr/share/seclists
829M    /usr/lib/python3/dist-packages
829M    /usr/lib/python3
796M    /usr/bin
564M    /usr/lib/dradis
to be honest, here, i'm a little confused,
on forums, i can see to delete files, or to increase storage.

As the problems seems to be from /usr i would avoid to delete something, and as my Kali distrib is a new one, i just installed gedit on it + a dictionnary to test some bruteforces on my own devices, so i don't know why i should have a problem with space disk.