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--- notes:qemu [2026/01/10 07:04] – azman
+++ notes:qemu [2026/01/10 07:19] (current) – azman
@@ Line 3: / Line 3: @@
 [[https://www.qemu.org|Qemu]] is a machine emulator (i.e. virtual machine), similar to VirtualBox and VMWare.
-===== Notes =====
+===== Useful Notes =====
   * change tty in the guest os running on qemu with ALT + left or right arrows
-    * older qemu need to switch view to compatmonitor , then type ''sendkey ctrl-alt-f2''
+===== QEMU console =====
+To get this (compatmonitor0: available in 'View' menu), hit ''CTRL+ALT+F2''. It is also available on host terminal using ''-monitor stdio'' command-line option.
+To switch ''tty'' terminal in guest OS, type <code>sendkey ctrl-alt-f2</code>
+To get information on block devices available, type <code>info block</code>
+To change virtual CD image, type <code>change <device> <file></code>
 ===== Virtual Disks =====
@@ Line 13: / Line 22: @@
 To convert from VBox disk image: <code>qemu-img convert -f vdi -O qcow2 disk.vdi disk.qcow2</code>
+To convert **from** raw disk image: <code>qemu-img convert -f raw -O qcow2 disk.img disk.qcow2</code>
+To convert **to** raw disk image: <code>qemu-img convert -f qcow2 -O raw disk.qcow2 disk.img</code>
+To get smaller disk image: <code>qemu-img convert -O qcow2 disk.qcow2 disk_small.qcow2</code>
 ===== Other Stuff =====
@@ Line 23: / Line 38: @@
 qemu-system-i386 -m 1536 -boot order=c -hda WinXP.qcow2
-press ctrl+alt+2 to get monitor console
-- type 'info block' to get block device information
-- to change cd drive, type 'change <device> <file>'
-or, use -monitor switch
 qemu-system-i386 -monitor stdio -enable-kvm -m 1536M WinXP.qcow2
@@ Line 53: / Line 63: @@
 -vga virtio -display sdl,gl=on
 -vga virtio -display gtk,gl=on
-qemu-img create -f qcow2 Slack.img 20G
 qemu-system-i386 -m 1536 -boot order=c,once=d -hda Slack.img -cdrom slackware-14.1-install.iso
-qemu-img convert -f qcow2 -O raw image.qcow2 image.img
-qemu-img convert -f raw -O qcow2 image.img image.qcow2
-qemu-img convert -O qcow2 image.qcow2 image_small.qcow2
-qemu-img convert -O qcow2 -c image.qcow2 image_smaller.qcow2
 </code>