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download PDF document: bhyveload.8.pdf

BHYVELOAD(8) FreeBSD System Manager's Manual BHYVELOAD(8)
NAME bhyveload - load a FreeBSD guest inside a bhyve virtual machine
SYNOPSIS bhyveload [-C] [-S] [-c cons-dev] [-d disk-path] [-e name=value] [-h host-path] [-l os-loader] [-m memsize[K|k|M|m|G|g|T|t]] vmname
DESCRIPTION bhyveload is used to load a FreeBSD guest inside a bhyve(4) virtual machine.
bhyveload is based on loader(8) and will present an interface identical to the FreeBSD loader on the user's terminal. This behavior can be changed by specifying a different OS loader.
The virtual machine is identified as vmname and will be created if it does not already exist.
OPTIONS The following options are available:
-c cons-dev cons-dev is a tty(4) device to use for bhyveload terminal I/O.
The text string "stdio" is also accepted and selects the use of unbuffered standard I/O. This is the default value.
-d disk-path The disk-path is the pathname of the guest's boot disk image.
-e name=value Set the FreeBSD loader environment variable name to value.
The option may be used more than once to set more than one environment variable.
-h host-path The host-path is the directory at the top of the guest's boot filesystem.
-l os-loader Specify a different OS loader. By default bhyveload will use /boot/userboot.so, which presents a standard FreeBSD loader.
-m memsize[K|k|M|m|G|g|T|t] memsize is the amount of memory allocated to the guest.
The memsize argument may be suffixed with one of K, M, G or T (either upper or lower case) to indicate a multiple of Kilobytes, Megabytes, Gigabytes or Terabytes respectively.
memsize defaults to 256M.
-C Include guest memory in the core file when bhyveload dumps core. This is intended for debugging an OS loader as it allows inspection of the guest memory.
bhyveload -m 1G -d /freebsd/release.iso freebsd-vm
To create a virtual machine named test-vm with 256MB of memory allocated, the guest root filesystem under the host directory /user/images/test and terminal I/O sent to the nmdm(4) device /dev/nmdm1B
bhyveload -m 256MB -h /usr/images/test -c /dev/nmdm1B test-vm
SEE ALSO bhyve(4), nmdm(4), vmm(4), bhyve(8), loader(8)
HISTORY bhyveload first appeared in FreeBSD 10.0, and was developed at NetApp Inc.
AUTHORS bhyveload was developed by Neel Natu <neel@FreeBSD.org> at NetApp Inc with a lot of help from Doug Rabson <dfr@FreeBSD.org>.
BUGS bhyveload can only load FreeBSD as a guest.
FreeBSD 14.0-RELEASE-p11 June 24, 2016 FreeBSD 14.0-RELEASE-p11