fedora updates and systemd renames

active/software_qemu/qemu.md

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+# QEMU
+
+- [QEMU](#qemu)
+  - [QCOW2](#qcow2)
+    - [QCOW2 Snapshots](#qcow2-snapshots)
+    - [Convert qcow to bootable drive](#convert-qcow-to-bootable-drive)
+    - [Convert bootable drive to qcow](#convert-bootable-drive-to-qcow)
+  - [ISO](#iso)
+  - [ISO Access Denied on Boot](#iso-access-denied-on-boot)
+
+## QCOW2
+
+QCOW2 (KVM, Xen)        qcow2
+QED (KVM)               qed
+raw                     raw
+VDI (VirtualBox)        vdi
+VHD (Hyper-V)           vpc
+VMDK (VMware)           vmdk
+
+### QCOW2 Snapshots
+
+```bash
+# Create a snapshot
+qemu-img snapshot -c snapshot-name /var/lib/libvirt/images/vm-image.qcow2
+
+# List snapshots for a given image
+qemu-img snapshot -l /var/lib/libvirt/images/vm-image.qcow2
+
+# Restore snapshot
+qemu-img snapshot -a snapshot-name /var/lib/libvirt/images/vm-image.qcow2
+```
+
+### Convert qcow to bootable drive
+
+```bash
+qemu-img convert -f qcow2 -O raw /var/lib/libvirt/images/vm-image.qcow2 /dev/sdb
+```
+
+### Convert bootable drive to qcow
+
+```bash
+dd if=/dev/sda of=/home/ducoterra/Downloads/toshiba.raw conv=noerror,sync,notrunc,sparse status=progress
+qemu-img convert -f raw -O qcow2 -p /dev/sdd /var/lib/libvirt/images/toshiba.qcow2
+```
+
+If you need to resize a windows partition to non-continuous space simply grow the
+last partition, shrink it to the end of the drive, then grow the windows partition
+with gparted.
+
+## ISO
+
+```bash
+pacman -S cdrtools
+mkisofs -r -iso-level 4 -l -o /tmp/arch-files.iso ./arch
+```
+
+## ISO Access Denied on Boot
+
+Turn off Secure Boot in the VM. Bios -> Device Manager -> Secure Boot Configuration -> Uncheck Attempt Secure Boot