WES7 Snapshots "Failed to access Snapshot File..."


Symptom:

On IGEL WES7 thin clients installing a snapshot from a USB storage medium fails with the message "Failed to access Snapshot File...". You may find that some media will work while others don't.


Problem:

The USB storage medium has the wrong formatting.

USB sticks are sold pre-formatted either

  • with a Master Boot Record (MBR) and a FAT32 filesystem or
  • a FAT32 filesystem without an MBR ("Superfloppy")

Only USB storage media with an MBR can be used to install a snapshot on IGEL WES7 thin clients.

Once a USB storage medium has been formatted, the format is not changed when using standard formatting tools. The IGEL tool Prepare USB Device does not change it either.

Solution:

To erase a medium formatted as Supperfloppy and format it with an MBR on Windows, follow these steps:

  1. Launch a Command Prompt as administrator.
  2. Run the command diskpart like this:
    DISKPART
    LIST DISK
    SELECT DISK 1
    Warning: disk 0 is almost always the internal system hard disk. If there is only one attached hard disk, then disk 1 should be the USB stick. Double-check to avoid overwriting the wrong medium.
  3. Run the following commands:
    CLEAN
    CREATE PARTITION PRIMARY
    SELECT PARTITION 1
    ACTIVE
    FORMAT FS=FAT32 QUICK
    ASSIGN
    EXIT
  4. Use Prepare USB Device from the local IGEL setup update menu to complete the preparation. .

    On a Linux system, a medium with a FAT32 filesystem and MBR will be detected as /dev/sdb1 or /dev/sdc1, a Superfloppy as /dev/sdb or /dev/sdc.

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Last update: July 17, 2018