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Write the steps to make a USB bootable device.

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This type of questions are most common in a Linux interview. Followings are the steps to make a USB bootable device

  • You have to write efidisk.img from RHEL 6 DVD images/ subdirectory to USB dd if=efidisk.img of=/dev/usb (name of the usb device)
  • Now you have to disable ping to avoid network /ICMP flood
  • Now set the following in/etc/sysctl.conf : net.ipv4.icmp_echo_ignore_all =1
  • Then “sysctl -p”

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