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Usage: VBoxBlockBoot [Virtual_Machine] [Block_device]
Eg: VBoxBlockBoot WinXP /dev/sdc
In another words
vm=usb; usb=sdc;sudo umount /dev/$usb* ; sudo chmod 777 /dev/$usb ; VBoxManage storageattach $vm --medium ~/raw-HD-4-VB/$usb.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm $vm
Where
vm --> Name of the virtual machine to start
usb --> Block device to use. (/dev/sdc)
This can used after setup up a boot loader on to my USB pen drive or HDD (After creating Live USB). Here root privilege is needed but not granted to Virtual Box. Thus we can access all our VM.( If we run VBox as root we can't access our VMs). Root privilege is used to
- Unmount the storage device
- Chmod to full access (777)
Requirements:-
1. Device information file (rawvmdk file) created by the following command. Need to run only once. Not bad to run many.
VBoxCreateRawDisk() { VBoxManage internalcommands createrawvmdk -filename ~/.rawHD4VB_`basename "$1"`.vmdk -rawdisk "$1"; }
2. Root privilege to umount & chmod
3. Real storage medium (ie /dev/*) (Non-virtual such as USB HD, pen drive, a partition)
4. A virtual m/c already available (here "usb")
vm=usb; usb=sdc;sudo umount /dev/$usb* ; sudo chmod 777 /dev/$usb ; VBoxManage storageattach $vm --medium ~/raw-HD-4-VB/$usb.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm $vm
VBoxBlockBoot() { sudo umount "$2"*; sudo chmod 777 "$2"; VBoxManage storageattach "$1" --medium ~/.rawHD4VB_`basename "$2"`.vmdk --type hdd --storagectl "IDE Controller" --device 0 --port 0 ; VBoxManage startvm "$1"; }
where
- memory 256 assign 256 Mb RAM
- acpi on enable ACPI (mandatory if you use Winfog 2000
- ioapic off disable the IO APIC. Not useful if you use one CPU (on virtual machine or a 32 bit operative system). As ACPI, this switch is mandatory for Winbug 2000
- pae on enable the Phisical Address Extension how to use more than 4Gb of RAM on x86 CPU
- hwvirtex on enables hardware virtualization extensions for microprocessors that have this feature (which should be also enabled in the BIOS of the motherboard)
- nestedpaging on allows part of the processes of memory management hardware are made directly
Booting the VM headless via VBoxHeadless requires knowledge of the VM's network in order to connect. Using VBoxManage in this way and you can SSH to the VM without first looking up the current IP, which changes depending on how you have your VM configured.
No comment... it's easy! Using the VBoxManage list and the switch 'hdds' or 'dvds' you can show the list of hard disks and DVD registered on the system.
If you want to know what OS are supported on "guest" machines on the Sun VirtualBox server.
A similar command that lists only the currently running VMs is thus:
VBoxManage list runningvms
...the above showing a list of VMs by name and UUID in the same format as the "$ VBoxManage list vms" command