Installing Operating System from custom image on OVH VPS ( CentOS 8 Tutorial)

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In theory this should work with any custom ISO, however I tested only with CentOS 8**1) Reboot VPS in rescue mode****2) Connect to Rescue Mode via SSH, unmount /dev/sdb1 and remove all partitions:**    # lsblk    # umount /dev/sdb1    # fdisk -u /dev/sdb    > d    > d     > w**3) Install required packages:**&#96;# apt install qemu-kvm&#96;**4) Download your ISO - usually Rescue Mode has very little space so you may want to download NetInst/Minimal ISO:**&#96;# wget http://mirror.ox.ac.uk/sites/mirror.centos.org/8.0.1905/isos/x86_64/CentOS-8-x86_64-1905-boot.iso&#96;**5) Run qemu (replace ISO location and vdisk name if required):**&#96;# qemu-system-x86_64 -netdev type&#61;user,id&#61;mynet0 -device virtio-net-pci,netdev&#61;mynet0 -m 2048 -localtime -enable-kvm -drive index&#61;0,media&#61;disk,if&#61;virtio,file&#61;/dev/sdb -vga qxl -spice port&#61;5900,addr&#61;127.0.0.1,disable-ticketing -daemonize -cdrom /tmp/CentOS-8-x86_64-1905-boot.iso -boot d&#96;**6) Assuming your workstation is running Linux, forward a port through an SSH tunnel to your VPS:**    # ssh -4 -v root&#64; -L 5900:localhost:5900**7) On your localhost, connect to SPICE running on local port 5900:**    # remote-viewer    > spice://127.0.0.1?port&#61;5900**8) Perform installation as usual.**Note: Since you downloaded Minimal/NetInst image, you need to configure source installation.For CentOS 8 I used:> a) http> b) repository URL> c) mirror.centos.org/centos/8/BaseOS/x86_64/os/**9) Reboot server and exit Rescue Mode.****10) Connect to your new instance running CentOS 8:**    # cat /etc/redhat-release     CentOS Linux release 8.0.1905 (Core)

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