| Context | Likely cause | |---------|---------------| | | A driver attempted to register /dev/ramX or a custom AIO RAMDisk, but the major/minor number is already taken, or the device node is already mounted/opened. | | Linux with custom kernel driver | The driver’s alloc_chrdev_region() or register_blkdev() returned -EBUSY . The exclusive flag was set, but the device number range was already claimed by another module (e.g., brd – the standard RAMDisk module). | | Android (bootloader or recovery) | Some OEM recovery/ODM tools create a temporary AIO RAMDisk. “Not registered exclusive” could mean the tool tried to allocate a device that the kernel already reserved (e.g., for ashmem or binder ). | | Proprietary hardware SDK | Example: TI’s AIO driver on PRU, or Xilinx’s RAMDisk for FPGA boot. The error is thrown by the vendor’s HAL when the device node can’t be claimed exclusively. |
Once the registration is confirmed on the server side, restart LPro AIO and click "Check Registration." The status should change from "Not Registered" to "Authorized" or "Registered". Driver Verification: lpro aio ramdisk device not registered exclusive