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Amazon EC2: how to convert an existing PV AMI to HVM

  1. Start an Ubuntu HVM linux, any version, new
  2. Start an Ubuntu / with my existing AMI / PVM linux, and install grub packages on them: apt-get install grub-pc grub-pc-bin grub-legacy-ec2 grub-gfxpayload-lists
  3. Stop PVM linux
  4. Detach root (/dev/sda1) partition at PVM linux
  5. Attach PVM linux root partition to running HVM linux somewhere, e.g.: /dev/sdf
  6. On HVM linux: mkdir -p /mnt/xvdf && mount /dev/xvdf /mnt/xvdf
  7. rsync -avzXA /boot/ /mnt/xvdf/boot/
  8. mount -o bind /dev /mnt/xvdf/dev && mount -o bind /dev/pts /mnt/xvdf/dev/pts && mount -o bind /proc /mnt/xvdf/proc && mount -o bind /sys /mnt/xvdf/sys
  9. chroot /mnt/xvdf
  10. grub-install --no-floppy --recheck --force /dev/xvdf
  11. update-grub2
  12. exit chroot: CTRL+D
  13. stop HVM Linux
  14. detach /dev/sda1 original root AND detach /dev/sdf PVM root
  15. attach PVM root to HVM linux as /dev/sda1
  16. Start HVM linux, voilà!
  17. Create a new AMI image from the running HVM linux, it will be HVM virtualized.
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