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Article #119 'Invalid Drive Specification' or 'Invalid Directory' Message When Creating a System Backup

Description: Backups in Solid Route Accounting business systems should be saved onto a removable storage device, such as a USB flash drive, so have that storage device kept off site, in a safe location, at the end of every business day. The system backups are sent to that storage device during the backup process by the drive letter set into the ‘Backup Destination’ field in the system’s backup configuration. When performing a backup of the Solid Route Accounting business system, such 'Invalid Drive/Directory' messages indicate that the location of the removable storage device is no longer valid, and so it can’t find that device to save the backup onto.

Resolution: Once the storage device, such as a USB flash drive, has been connected to the computer, it will be automatically assigned a drive letter. Navigate to ‘Computer’, which may be a desktop icon or be available from within the [START] menu. For Windows XP users, this program is called ‘My Computer’. Once inside ‘Computer’, the storage device should be visible in the section of ‘Devices with Removable Storage’, and will have a drive letter associated with it such as (E:), (F:), (J:), or so on. Make note of what its drive letter is, and then return to the Solid Route Accounting software component that’s running the backup.

Enterprise Edition Users:

Once inside Solid Business Central, navigate to [System / Backup / Daily (or Full)]. At the bottom of the ‘Solid Business Central Backup’ screen, verify that the ‘Backup Destination’ drive letter is correct as per the drive letter that the removable storage device was listed in ‘Computer’ as, and then try the backup again.

for QuickBooks,
Microsoft Dynamics GP Edition,
Dynamic 3i Edition,
FACTS Edition,
Eyewear Genetics Edition,
Integration Edition Users:

Inside Solid Mobile Central select [Backup], and at the bottom of the Backup screen verify that the ‘Backup Destination’ drive letter is correct, and then try the backup again.

Prevention: Removable storage devices that connect to a computer by way of a USB port are subjective to USB’s unreliable designation of drive letters, as they are disconnected and reconnected to the PC. However, the chance of the drive letter changing when the device is reconnected can be reduced by always plugging the removable storage device into the same USB port every time.

Last modified on Tuesday, 20 February 2018 10:04

Additional Info

  • Software Components: Solid Business Central, Solid Mobile Central
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