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qemu:tldr:c7df3
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. Thed
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.