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Reset root pass in ESXi 5.5

    In this post i will show how to reset root password in ESXi 5.5. For this first we need any bootable linux distributor. In my example i used Ubuntu 16.04.     Boot from Ubuntu disk. Select try Ubuntu, wait for loading. After full loading open Terminal. Type fdisk -l for list all partitions hypervisor/system image is located on the first 250 MB partition (/dev/sda5) which contains the state.tgz file. Mount /dev/sda5 to /mnt sudo -s mount /dev/sda5 /mnt. Go to the /mnt cd /mnt . Copy state.tgz to /tmp folder cp state.tgz /tmp , cd /tmp. Unarchive state.tgz tar xzf state.tgz then   tar xzf local.tgz Go to the /etc directory in /tmp folder  cd etc/ . For deleting resetting password open shadow file with nano shadow  delete the password hash of ESXi root account. Close nano editor. Re add etc/ folder to local.tgz : tar czf local.tgz etc after it readd local.tgz to state.tgz: tar czf state.tgz local.tgz . Copy state.tgz mnt/ folder: cp state.tgz /mnt/ . umount /mnt 
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Service Hosting - KVM documentation

Host System Requirements: Minimum host system requirements 6 GB free disk space. 2 GB RAM. Recommended system requirements One core or thread for each virtualized CPU and one for the host. 2 GB of RAM, plus additional RAM for virtual machines. 6 GB disk space for the host, plus the required disk space for the virtual machine(s). KVM Hypervisor Requirements: an Intel processor with the Intel VT-x and Intel 64 virtualization extensions for x86-based systems; or an AMD processor with the AMD-V and the AMD64 virtualization extensions. Installing the Virtualization Packages: To use virtualization on OL7, at minimum, you need to install the following packages: # yum install qemu-kvm libvirt qemu-kvm: This package provides the user-level KVM emulator and facilitates communication between hosts and guest virtual machines. qemu-img: This package provides disk management for guest virtual machines. The qemu-img package is installed as a dependency of the qemu-kvm package. libvirt:
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