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--- command_line [2012/06/15 10:16] – [Quick Command Ref.] k2patel
+++ command_line [2021/08/24 21:11] (current) – k2patel
@@ Line 1: / Line 1: @@
 ====== KVM Command Line ======
@@ Line 29: / Line 31: @@
 [[http://libvirt.org/formatdomain.html|Domain Format in KVM]]
+==== Test your bootable USB on kvm ====
+In order to test your USB using KVM use following command.
+<code bash>
+qemu-kvm -hdb <device>
+</code>
+In my case device was "/dev/sdb".
 ==== Converting Existing Image ====
@@ Line 127: / Line 136: @@
 === Create Disk ===
 create disk of size 10G
+<code bash | for dynamic allocation>
+qemu-img create -f raw vdisk.img 10G
+</code>
+OR
+<code bash | preallowcation>
+dd if=/dev/zero of=vdisk.img bs=1G count=0 seek=[NUMBER_OF_GB]
+</code>
+==== How to allow network access to KVM Guest ====
+Modify guest.xml file and listen variable.
+<code bash | vi /etc/libvirt/qemu/Archlinux.xml>
+<graphics type='vnc' port='-1' autoport='yes' listen='192.168.1.4' passwd='testing1'/>
+</code>
+==== Extract folder from KVM Guest Image ====
+This appears to be the far easy solution than I thought.\\
+[[http://libguestfs.org/virt-copy-out.1.html|Link to official Document]]
+For RHEL you require the following packages installed.
+  * libguestfs-tools
+  * libguestfs-xfs  # if guest filesystem is XFS.
 <code bash>
-qemu-img create -f qcow2 vdisk.img 10G
+mkdir test
+virt-copy-out -a machine2.qcow2 /metadata/testing/users test/
 </code>
+==== Image File explorer ====
+This is a simple way to extract or access files.\\
+Scan and assign the dev node.
+<code bash>
+losetup --partscan --find --show sdcard.img
+</code>
+List all the block devices, including newly scanned.
+<code bash>
+lsblk --fs
+</code>
+Mounting the file system
+<code bash>
+mount /dev/loop0p2 /mnt/sdcard
+</code>
+Once unmounted remove the lo drive.
+<code bash>
+losetup --detach-all
+</code>