Installing and Upgrading Parallels Tools in Text Mode in Linux
After upgrading to Parallels Desktop, the X Server may fail to start in Linux virtual machines. To fix the problem, you need to install Parallels Tools in text mode.
- Start the virtual machine.
 - When you see a message that X Server failed to start, switch to another virtual console using Ctrl+Option+F1 (Ctrl+Alt+F1) or Ctrl+Option+F2 (Ctrl+Alt+F2) and enter your login details.
 - 
          Choose
          
           Install Parallels Tools
          
          from the
          
           Actions
          
          menu to connect the Parallels Tools ISO image to your virtual machine.
          
          
The
prl-tools-lin.isoimage file will be connected to the virtual machine's CD/DVD drive. - 
          In the virtual machine console, type the following command to gain the
          
rootprivileges:su
 - 
          Check if the Parallels Tools CD image is mounted by entering
          
mount | grep iso9660
If this command does not return anything, proceed to the next step.
If this command returns anything like
/dev/cdrom on /media/cdrom type iso9660 (ro,exec,nosuid,nodev,uid=0),
skip the next step and proceed to the following one.
If this command returns anything like
/dev/cdrom on /media/cdrom type iso9660 (ro,noexec,nosuid,nodev,uid=0)
with the
noexecoption present in parentheses, you need to unmount the disc using the following command and then proceed to the next step:umount /dev/cdrom
 - 
          To mount the Parallels Tools installation disc image, enter the following:
          
mount -o exec /dev/cdrom /media/cdrom
 - 
          When the installation disc image is mounted, change the directory to the CD/DVD drive directory using
          
cd /media/cdrom/
 - 
          In the CD/DVD drive directory, enter the following to launch Parallels Tools installation:
          
./install
 - Follow the Parallels Tools Installer instructions to complete the installation.
 - When the installation of Parallels Tools is complete, restart your virtual machine.
 
For general information on installing Parallels Tools in Linux, refer to Installing Parallels Tools in a Linux Guest OS .