How to Fix: Mac: Can't convert to real path: Input/output error

The 'Can't convert to real path: Input/output error' issue affects users trying to automatically mount NFS shares on Mavericks. This error can be frustrating, especially when it prevents the system from recognizing and mounting network file systems.

Automounting NFS shares is a common requirement for remote access and collaboration. However, this specific error message indicates that there might be an underlying issue with the configuration or the system's ability to access the NFS share.

⚠️ Common Causes

• The primary reason for this error is a misconfigured or missing '/etc/auto_master' file. The auto.master file specifies the directory hierarchy and the mounts that should be automatically mounted on boot. If this file is not properly configured, the system may not recognize the NFS share and hence cannot convert it to a real path.
• Another possible cause of this error could be an issue with the '/etc/auto.myserver' file or the symlinks in the root directory. These files are used to specify the NFS share details, but if they are not correctly configured, the system may not be able to mount the share.

✅ Best Solutions to Fix It

🎯 Final Words

To resolve the 'Can't convert to real path: Input/output error' issue when trying to automatically mount NFS shares on Mavericks, edit the '/etc/auto.master' and '/etc/auto.myserver' files according to the steps above. Run the command 'automount -vc' after making changes to test if the system can now recognize and mount the NFS share.