Popular Posts
Add file to google drive using Google.Apis.Auth.OAuth2; using Google.Apis.Drive.v2; using Google.Apis.Drive.v2.Data; using Google.Apis.Services; using Google.Apis.Ut... Enable SSL connection for Jsoup import org.jsoup.Connection; import org.jsoup.Jsoup; import javax.net.ssl.*; import java.io.IOException; import java.security.KeyManagement... JavaMail sample import java.io.File; import java.io.UnsupportedEncodingException; import java.util.Date; import java.util.Properties; import javax.activati...
Stats
Compacting VirtualBox Disk Images - Linux Guests
  1. Start the Linux virtual machine;
  2. Clean the free space on the disk of the Linux virtual machine;
    dd if=/dev/zero of=zerofillfile bs=1M
    • if= specifies the input file;
    • /dev/zero indicates a bit-stream of zeros
    • of= specifies the output file
    • zerofillfile name of the file containing the bit-stream of zeros
    • bs= indicates the block size
    • 1M indicates that the block size will be 1 megabyte
    rm zerofillfile
  3. Shutdown the Linux virtual machine;
  4. Use the VirtualBox VBoxManage utility to compact the Linux guest image.

Ref: Compacting VirtualBox Disk Images - Linux Guests