qemu:tldr:c7df3

qemu: Specify amount of RAM for instance.

qemu-system-i386

$ qemu-system-i386 -m 256 -hda image_name.img -cdrom os-image.iso -boot d

try on your machine

This command is used to launch the QEMU (Quick Emulator) with the specified options and configurations. Let's break down the command:

qemu-system-i386: This is the command to start QEMU in i386 (32-bit x86) system emulation mode. It is used to run an x86-based virtual machine.
-m 256: This option sets the memory size of the virtual machine to 256 MB. The -m flag is followed by the desired memory size in megabytes.
-hda image_name.img: This option specifies the image file that should be used as the virtual hard drive for the virtual machine. image_name.img should be replaced with the actual name of the image file.
-cdrom os-image.iso: This option specifies the ISO image file that should be used as the virtual machine's CD-ROM drive. os-image.iso should be replaced with the actual name of the ISO file.
-boot d: This option instructs the virtual machine to boot from the CD-ROM drive (specified earlier) as the primary boot device. The d represents the CD-ROM device.

By executing this command, QEMU starts a virtual machine with 256 MB of memory, using image_name.img as the virtual hard drive and os-image.iso as the CD-ROM drive. The virtual machine will boot from the CD-ROM drive upon startup.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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