Firmwared is a daemon whose job is to manage a pool of machine firmwares, to run one or even several instances of these firmwares and to make sure there is no harmful interaction between them and with the host system.
Three man pages are available : firmwared, fdc and firmwared.conf. To display them:
$ fdc --help $ firmwared --help $ firmwared --help-conf
As mentioned in Quick start, firmwared can be started via systemd:
$ sudo systemctl start firmwared.service
or it can be started directly within a shell…
$ sudo firmwared
If you know what you are doing, you can customize the default settings.
To achieve that, create a file
/etc and put
the options you would like to set. The list of the available options is
available in firmwared’s help page.
firmwared.conf to enable some extra logs in ulog.
-- lua language syntax FIRMWARED_DUMP_PROFILE = "y" FIRMWARED_VERBOSE_HOOK_SCRIPTS = "y"
To have firmwared take this file into account, just restart it.
$ sudo systemctl restart firmwared.service
To see the logs produced#
By default, all logs produced by firmwared are directed to
Therefore to see the logs, launch ulogcat from root user:
$ sudo ulogcat -C -v long
fdc (FirmwareD Client)#
fdc is a command line tool that lets you control and monitor firmwared.
Below are some typical examples of what fdc can do. To have more info, refer
to the man page.
list up the firmwares present in the cache
$ fdc list firmwares
list up the existing firmware instances (should be none if no simulation is running):
$ fdc list instances
retrieve information about an existing instance:
$ fdc show instances tremulous_patty name: tremulous_patty sha1: 13238174bdcb5db0327832bc39c5bd240b4637d7 id: 1 pid: 1 state: ready firmware_path: /opt2/work/sphinx/firmwares//ardrone3-milos_pc.ext2.firmware base_workspace: /opt2/work/sphinx/mount//7d99bf3e58c94f938113cdcf24a0b0d00e240840 inner_pts: /dev/pts/10 outer_pts: /dev/pts/7 firmware_sha1: 2722eb42c643febd76fa9d99433b7e56a8778737 time: Fri Jun 12 14:39:06 2015 virt_iface: eth0 cmdline: /sbin/boxinit ro.hardware=mk3_sim_pc ro.debuggable=1 ro.boot.console=/pts/10
kill (if needed) and remove a specific instance:
$ fdc drop instances tremulous_patty
kill (if needed) and remove ALL instances. This command is convenient when spurious instances are still running in background for any reason.
$ fdc drop_all instances