Occasionally, hardware RAID controllers or fakeraid (via BIOS) may leave behind metadata on a disk. This metadata can hinder the installation of operating systems like Windows or Linux. Even if the installation completes successfully, it may trigger a kernel panic or a 0xb7 blue screen error upon the initial boot. A swift method to eradicate this metadata is by zeroing out the final 512KB of data on the disk. The command below facilitates this process:
dd if=/dev/zero of=$YOUR_DEV bs=512 seek=$(( $(blockdev --getsz $YOUR_DEV) - 1024 )) count=1024
Replace $YOUR_DEV with the physical device, such as /dev/sda
While it's possible to zero the entire disk, this operation could be time-consuming, stretching into hours. Conversely, the provided command completes in less than a second, offering a quick and effective solution to the RAID metadata issue.
