Some more ubuntu tricks

• remove users from group; edit the file:
  /etc/group
• can’t start VNC with XServer; add pemissions to:
  /etc/X11/xinit/xinitrc
• mount ntfs that had unclean shutdown:
  ntfsmount /dev/sdb1 /bbb –o force
• remount root filesystem readonly:
  mount –o ro,remount –f /
• change ubuntu server start resolution:
  add vga=786 parameter in:
  /etc/default/grub
  $>update-grub
• exclude certain directories while tarring:
  tar -cvzpP --file=/distr/backup.tar.gz --exclude={/dev/*,/proc/*,/sys/*,/srv/*,/distr/*,/tmp/*} /