![]() Filling the third partition with random data : dd if=/dev/urandom of=/dev/sdX3 bs=1M Filling the second partition on the /dev/sda disk with all zeros : dd if=/dev/zero of=/dev/sdX2 bs=1MĢ. If /dev/sda is the whole disk, then (on Linux, because the naming scheme vary from one Linux to another) /dev/sda3 is the third partition on the disk.ġ. ![]() You can wipe a partition using the same method than for the whole disk. If you messed up your master boot record (MBR) you can wipe it using this command : dd if=/dev/zero of=/dev/hdX bs=446 count=1 If you replace the device name, you can also wipe USB sticks and other peripherals. ![]() Use for example gparted to find the correct drive. sda is usually the first hard drive, the second drive would be sdb and so on. Time for a change in tack.You need to replace sda with the device name you want to overwrite. Now for legacy BIOS mode to boot gpt partitions it needs a partition called biosboot To force legacy BIOS to use gpt partitions on smaller disks the installer needs to be booted with the inst.gpt kernel option. For UEFi the disks need to use gpt partitions, but under legacy BIOS mode, gpt partitions would not be used unless the disks were greater than 2Tb. In researching the answer to this issue I came across the following information. I wish to mention that the system would install perfectly under an interactive install but unfortunately the ability to create Raid 1 devices in this mode has been removed from anaconda. Test -b /dev/md1 & wipefs -a /dev/md1 & mdadm -stop /dev/md1 ![]() Test -b /dev/md0 & wipefs -a /dev/md0 & mdadm -stop /dev/md0 Echo "Starting Kickstart Pre-Installation."
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