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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/guix.texi | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi index 730b6a3770..569790065f 100644 --- a/doc/guix.texi +++ b/doc/guix.texi @@ -4375,12 +4375,27 @@ This command also installs GRUB on the device specified in @item vm @cindex virtual machine +@cindex VM Build a virtual machine that contain the operating system declared in @var{file}, and return a script to run that virtual machine (VM). Arguments given to the script are passed as is to QEMU. The VM shares its store with the host system. +Additional file systems can be shared between the host and the VM using +the @code{--share} and @code{--expose} command-line options: the former +specifies a directory to be shared with write access, while the latter +provides read-only access to the shared directory. + +The example below creates a VM in which the user's home directory is +accessible read-only, and where the @file{/exchange} directory is a +read-write mapping of the host's @file{$HOME/tmp}: + +@example +guix system vm my-config.scm \ + --expose=$HOME --share=$HOME/tmp=/exchange +@end example + On GNU/Linux, the default is to boot directly to the kernel; this has the advantage of requiring only a very tiny root disk image since the host's store can then be mounted. |