Difference between revisions of "Kvm"
From Bashlinux
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__NOTOC__ |
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− | == How to determine if the host can run virtualization on hardware == |
+ | === How to determine if the host can run virtualization on hardware === |
* If the CPU supports hardware virtualization then ensure it is enabled on BIOS |
* If the CPU supports hardware virtualization then ensure it is enabled on BIOS |
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− | <pre><nowiki> |
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# egrep -c '(vmx|svm)' /proc/cpuinfo |
# egrep -c '(vmx|svm)' /proc/cpuinfo |
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− | </nowiki></pre> |
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Create and empty disk of 1Gb and launch a VM as: |
Create and empty disk of 1Gb and launch a VM as: |
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− | <pre><nowiki> |
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# dd if=/dev/zero of=disk.img bs=1M count=1024 |
# dd if=/dev/zero of=disk.img bs=1M count=1024 |
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# qemu-kvm -boot d -hda disk.img -cdrom /dev/cdrom |
# qemu-kvm -boot d -hda disk.img -cdrom /dev/cdrom |
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− | </nowiki></pre> |
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Where |
Where |
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− | * |
+ | * <code>-boot</code> [order=drives][,once=drives][,menu=on|off] |
'drives': floppy (a), hard disk (c), CD-ROM (d), network (n) |
'drives': floppy (a), hard disk (c), CD-ROM (d), network (n) |
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− | * |
+ | * <code>-hda/-hdb</code> file use 'file' as IDE hard disk 0/1 image |
− | * |
+ | * <code>-cdrom</code> file use 'file' as IDE cdrom image (cdrom is ide1 master) |
Revision as of 02:08, 6 June 2015
How to determine if the host can run virtualization on hardware
- If the CPU supports hardware virtualization then ensure it is enabled on BIOS
# egrep -c '(vmx|svm)' /proc/cpuinfo
How to quick launch an instance
Create and empty disk of 1Gb and launch a VM as:
# dd if=/dev/zero of=disk.img bs=1M count=1024 # qemu-kvm -boot d -hda disk.img -cdrom /dev/cdrom
- On Ubuntu use
kvm
insteadqemu-kvm
command
Where
-
-boot
[order=drives][,once=drives][,menu=on|off]
'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)
-
-hda/-hdb
file use 'file' as IDE hard disk 0/1 image -
-cdrom
file use 'file' as IDE cdrom image (cdrom is ide1 master)