VM Clean up

some tips for free up spaces on linux VM

Check Current Spaces (with following commands)

• list disk usage %

df-h

• check disk usage inside folder

sudo du -h --max-depth=1

Free Up Commands

• Jornal files
  • system logs, can goes up to 4G

• check current journal file sizes

journalctl --disk-usage

• only keep 300M, remove others

journalctl --vacuum-size=300M

• only keep 7 days journal files

journalctl --vacuum-time=7d

• Snap Packages

• show all snap packages

snap list --all

• list all disabled packages

LANG=en_US.UTF-8 snap list --all | awk '/disabled/{print $1, $3}

• remove deprecated google-cloud-sdk-packages

snap remove google-cloud-sdk --revision=264

• remove all disabled snap packages.

LANG=C snap list --all | while read snapname ver rev trk pub notes; do if [[ $notes = *disabled* ]]; then sudo snap remove "$snapname" --revision="$rev"; fi; done

• Linux cleanup

sudo apt-get autoremove
sudo apt-get autoclean

Enlarge Disk Spaces

• can be done without VM restart/shutdown

• check current disk space

df -h

• check disk info

lsblk

• use growpart command

sudo growpart /dev/sda 1`

• use resize2fs command

sudo resize2fs /dev/sda1`

• use command to check disk space. should be changed now.

df -h