diff options
Diffstat (limited to 'debvm-run')
| -rwxr-xr-x | debvm-run | 8 |
1 files changed, 5 insertions, 3 deletions
@@ -13,7 +13,7 @@ B<debvm-run> [B<-g>] [B<-i> I<image>] [B<-s> I<sshport>] [B<--> I<qemu options>] =head1 DESCRIPTION -B<debvm-run> is essentially a thing wrapper around B<qemu> for running a virtual machine image created by B<debvm-create> or something compatible. +B<debvm-run> is essentially a thin wrapper around B<qemu> for running a virtual machine image created by B<debvm-create> or something compatible. The virtual machine image is expected to be a raw ext4 image with file system label B<debvm>. The architecture of the machine is detected from the contained B</bin/true>. It must contain a symbolic link pointing to a kernel image at B</vmlinuz> or B</vmlinux> depending on the architecture and a symbolic link pointing to an initrd image at B</initrd.img>. @@ -42,14 +42,16 @@ If given, B<qemu> is configured to pass connections to I<127.0.0.1:sshport> to p All options beyond a double dash are passed to B<qemu>. This can be used to configure additional hardware components. -Another use of this method is passing B<-snapshot> to avoid modifying the virtual machine image. +One possible use of this method is passing B<-snapshot> to avoid modifying the virtual machine image. =back =head1 LIMITATIONS -Due to the way kernel and bootloader are being extracted before running qemu, one cannot upgrade a kernel and then just reboot. +Due to the way kernel and bootloader are being extracted before running B<qemu>, one cannot upgrade a kernel and then just reboot. +Attempting to do so, will still use the old kernel. Instead, B<qemu> must be terminated and B<debvm-run> should be launched again to pick up a new kernel. +In order to avoid accidental reboots, one may pass B<-no-reboot> to B<qemu>. =head1 SEE ALSO |