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From AlphaBook
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fdisk

  • df -h
  • fdisk -l
  • fdisk -l /dev/sda
  • Create new partition
    • fdisk /dev/sdb
    • m
    • n
    • p
    • 1
    • ENTER
    • ENTER
    • w
    • partprobe
    • fdisk -l /dev/sdb

Recover root password

  • Press E to edit boot menu
  • Add rd.break at the line of "linux16"
  • Press Ctrl+X
  • mount -o remount,rw /sysroot
  • chroot /sysroot
  • passwd
  • touch /.autorelabel