FreeDOS IntiDisk - Invalid Opcode

Issue

UBCD, Spinrite and other tools utilizing FreeDOS fail to boot on Dell OptiPlex 980 PC with the following error message:

 IntiDisk Invalid Opcode

IntiDisk
Invalid Opcode at 03A0 0000 0F03 0D44 7C44 0B63 6218 8F15 6C6D 0D44 001E 0000 0000

Recover data from faulty Synology NAS

Issue

Synology DiskStation 415+ NAS failed. Blue power button LED keeps blinking. Status LED is off. All 4 disk orange LEDs steady on (there are only 2 HDDs installed). Removing all hard drives doesn't change anything. Replacing RAM doesn't change anything either. All this indicated motherboard failure. Owner asked to recover data from hard drives.

RetroPie - enable SSH root access

To access RetroPie via SSH using root account:

  • Open file sshd_config located in etc/ssh:
    sudo nano /etc/ssh/sshd_config 
    • Find line:
      PermitRootLogin without-password
    • Comment it out (or delete) it and replace with:
      PermitRootLogin yes
    • Save changes (CTRL + X)
  • Set root password:
    sudo passwd root
  • Reboot your Raspberry Pi

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