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--- box:qemu [2024/08/27 23:10]
manu created
+++ box:qemu [2024/09/06 21:03] (current)
manu
@@ Line 13: / Line 13: @@
 |VMDK (VMware)|vmdk|
+This example will convert a raw image file named image.img to a qcow2 image file.
+  qemu-img convert -f raw -O qcow2 image.img image.qcow2
+Run the following command to convert a vmdk image file to a raw image file.
+  qemu-img convert -f vmdk -O raw image.vmdk image.img
+Run the following command to convert a vmdk image file to a qcow2 image file.
+  qemu-img convert -f vmdk -O qcow2 image.vmdk image.qcow2
+===== Create a VM =====
+==== Create a virtual disk ====
+<cli prompt='#'>
+root@manu:~# qemu-img create -f qcow2 /Virtual_srv/qemu/rocky9_01_disk.img 20G
+Formatting '/Virtual_srv/qemu/rocky9_01_disk.img', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=21474836480 lazy_refcounts=off refcount_bits=16
+	.
+root@manu:~# du -sh /Virtual_srv/qemu/rocky9_01_disk.img
+K	/Virtual_srv/qemu/rocky9_01_disk.img
+root@manu:~# qemu-img info /Virtual_srv/qemu/rocky9_01_disk.img
+image: /Virtual_srv/qemu/rocky9_01_disk.img
+file format: qcow2
+virtual size: 20 GiB (21474836480 bytes)
+disk size: 196 KiB
+cluster_size: 65536
+Format specific information:
+    compat: 1.1
+    compression type: zlib
+    lazy refcounts: false
+    refcount bits: 16
+    corrupt: false
+    extended l2: false
+Child node '/file':
+    filename: /Virtual_srv/qemu/rocky9_01_disk.img
+    protocol type: file
+    file length: 192 KiB (197120 bytes)
+    disk size: 196 KiB
+</cli>
+qemu-system-x86_64 -k fr -m 512 -drive file=/Virtual_srv/qemu/rocky9_01_disk.img,format=qcow2 -boot d -cdrom /home/manu/Downloads/Rocky-9.4-x86_64-minimal.iso -nographic -netdev user,id=mynet0 -device e1000,netdev=mynet0
+<code>
+virt-install \
+    --memory 1024 \
+    --vcpus 1 \
+    --name Rocky9 \
+    --disk /Virtual_srv/qemu/rocky9_01_disk.img,device=disk,bus=virtio,format=qcow2 \
+    --disk home/manu/Downloads/Rocky-9.4-x86_64-minimal.iso,device=cdrom \
+    --os-variant virt-install \
+    --memory 1024 \
+    --vcpus 1 \
+    --name Rocky9 \
+    --disk /Virtual_srv/qemu/rocky9_01_disk.img,device=disk,bus=virtio,format=qcow2 \
+    --disk /home/manu/Downloads/Rocky-9.4-x86_64-minimal.iso,device=cdrom \
+    --os-variant rocky9 \
+    --virt-type kvm \
+    --graphics none \
+    --import
+</code>
+<cli prompt='$'>
+manu@manu:~$ virsh domiflist rocky9
+ Interface   Type      Source    Model    MAC
+-------------------------------------------------------------
+ vnet0       network   default   virtio   52:54:00:56:fe:1e
+manu@manu:~$ virsh list
+ Id   Name     State
+------------------------
+    rocky9   running
+manu@manu:~$ virsh shutdown rocky9
+Domain 'rocky9' is being shutdown
+manu@manu:~$ virsh list
+ Id   Name   State
+--------------------
+manu@manu:~$ virsh start rocky9
+Domain 'rocky9' started
+manu@manu:~$ virsh list
+ Id   Name     State
+------------------------
+    rocky9   running
+</cli>
+Review the provision from the Host OS.
+<cli prompt='$'>
+manu@manu:~$ virsh domblklist FMGinternal
+ Target   Source
+----------------------------------------
+ hda      /srv/VMs/fmg.qcow2
+ hdb      /srv/VMs/fortimanager.qcow2
+ vdb      /srv/VMs/fortimanager2.qcow2
+manu@manu:~$ virsh domblkinfo FMGinternal vdb --human
+Capacity:       80.000 GiB
+Allocation:     196.000 KiB
+Physical:       193.250 KiB
+</cli>
+**In the Host OS:**
+If the 'virsh' command hangs during some operations, restart it. If it still hangs, review the rights of the user and the logs for more clues.
+  systemctl restart libvirtd
+Review the logs with 'journalctl' and press G to go to the latest ones.
+  journalctl -b 0

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