I would like you to help me understand the output of df -h
below:
udev 7,8G 0 7,8G 0% /dev
tmpfs 1,6G 1,7M 1,6G 1% /run
/dev/sda3 229G 68G 150G 32% /
tmpfs 7,9G 211M 7,6G 3% /dev/shm
tmpfs 5,0M 4,0K 5,0M 1% /run/lock
tmpfs 7,9G 0 7,9G 0% /sys/fs/cgroup
/dev/loop1 84M 84M 0 100% /snap/core/3748
/dev/loop0 160M 160M 0 100% /snap/spotify/5
cgmfs 100K 0 100K 0% /run/cgmanager/fs
tmpfs 1,6G 68K 1,6G 1% /run/user/1000
I would like to understand what exactly are the udev
, tmpfs
and /dev/loop
partitions.
I am wondering if they are some sort of 'leftoveres' after my Virtual Machines in Virtual Box.
I had a few virtual machines with 8GB in size but I have removed them and I still see there are some partitions that are taking quite a lot of space.
- Are they related to Virtual Box?
- Is it safe to remove those partitions?
Best Answer
You have only one actual partition
/dev/sda3
.You should not touch the
udev
andtmpfs
partitions.tmpfs
is a virtual memory filesystem based on your RAMudev
supplies Dynamic device management using virtual filesMore info regarding
udev
andtmpfs
you can find in this answer./dev/loop
partitions are a mounted snap-file which is based on SquashFS read-only file systemYou can check what is the content of
/snap/core/3748
and/snap/spotify/5
folders.Anyway - those are very small files (160M and 84M) - so removing them won't save much disk space.