# Install Parallels Tools or VirtualBox Guest Additions in Linux

Sometimes linux mounts removable media with the noexec option, so you cannot execute any files on the CD image. Despite many tutorials telling you to unmount and mount the image again, you can actually remount in one command. Although you do need to get the syntax of the mount command right ;)

# mount -o remount,defaults,ro,exec /dev/sr0 /media/cdrom


The options used are:

• remount - remount in place
• defaults - because I don’t want to bother with all the details
• ro - read-only, it’s a CDROM
• exec - allow execution of files on this mount point.