cdemu mx linux

cdemu_mx_linux.md

NOTE

The cdemu packages from deb multimedia repo is broken, so we will have to use ubuntu PPA for this.

Add ubuntu PPA Ref link

sudo nano /etc/apt/sources.list.d/cdemu.list with content:

# cdemu source
deb http://ppa.launchpad.net/cdemu/ppa/ubuntu/ bionic main  
deb-src http://ppa.launchpad.net/cdemu/ppa/ubuntu/ bionic main

Add key: sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys AFDF4CC6A4F32AA9395FAE8F423A2125D782A00F

Add deb multimedia for libmirage-plugin relevant issue

You can do it using synaptic or sudo vim /etc/apt/sources.list and add deb http://www.deb-multimedia.org/ buster main non-free

Update and grab the packages

sudo apt install cdemu-client cdemu-daemon gcdemu libmirage-plugin

IMPORTANT STEP: disable deb multimedia after you are done, it usually causes problems!

Start cdemu

NOTE

Sometime you will run into some trouble running the daemon:

posix_spawn avoided (fd close requested) cdemu0: Kernel I/O: failed to open control device /dev/vhba_ctl: No such file or directory!
cdemu: Daemon: failed to start device #0!
cdemu: Daemon: failed to create device!
Daemon initialization and start failed!

Solution to this is to: sudo modprobe vhba to start up vhba device, then start the daemon.

Start daemon

cdemu-daemon

Now you can start gcdemu

gcdemu

Hope that helps.

I'm having issues, seen here.

Error given at system start is

Daemon autostart faled. Error:
g-io-error-quark: Error calling StartServiceByName for
net.sf.cdemu.CDEmuDaemon: Timeout was reached (24)

Trying to figure out a way to convert the systemd init script to a sysv init script and sysv init scripts look arcane. I mean,

Systemd:

[Unit]
Description=CDEmu daemon

[Service]
Type=dbus
BusName=net.sf.cdemu.CDEmuDaemon
ExecStart=/usr/bin/cdemu-daemon --config-file "%h/.config/cdemu-daemon"
Restart=no

vs

SysV Init:

#!/bin/sh
# kFreeBSD do not accept scripts as interpreters, using #!/bin/sh and sourcing.
if [ true != "$INIT_D_SCRIPT_SOURCED" ] ; then
    set "$0" "$@"; INIT_D_SCRIPT_SOURCED=true . /lib/init/init-d-script
fi
### BEGIN INIT INFO
# Provides:          iscsid
# Required-Start:    $network $local_fs
# Required-Stop:     $network $local_fs sendsigs
# Default-Start:     S
# Default-Stop:      0 1 6
# Short-Description: iSCSI initiator daemon (iscsid)
# Description:       The iSCSI initiator daemon takes care of
#                    monitoring iSCSI connections to targets. It is
#                    also the daemon providing the interface for the
#                    iscisadm tool to talk to when administering iSCSI
#                    connections.
### END INIT INFO

# Author: Christian Seiler <christian@iwakd.de>

DESC="iSCSI initiator daemon"
DAEMON=/sbin/iscsid
PIDFILE=/run/iscsid.pid
OMITDIR=/run/sendsigs.omit.d

do_start_prepare() {
	if ! /lib/open-iscsi/startup-checks.sh ; then
		exit 1
	fi
}

do_start_cleanup() {
	ln -sf $PIDFILE $OMITDIR
}

do_stop_override() {
	# Don't stop iscsid if we're on initramfs or we had some
	# excluded sessions. We could actually stop it, it's not
	# required for the kernel to continue working with active
	# sessions, but it also doesn't hurt to leave it running.
	if [ -f /etc/iscsi/iscsi.initramfs ] ||
		( [ -f /run/open-iscsi/shutdown-keep-sessions ] && [ -n "$(cat /run/open-iscsi/shutdown-keep-sessions)" ] )
	then
		return
	fi
	do_stop "$@"
}

There's no way of guessing the correct syntax for an init script, I'd basically have to know how to program them from scratch.

Tried starting the cdemu daemon manually and:

$ cdemu-daemon
Starting CDEmu daemon with following parameters:
 - config file: (null) (exists: 0)
 - num devices: 1
 - control device: /dev/vhba_ctl
 - audio driver: null
 - bus type: session
 - default CDEmu debug mask: 0x0
 - default libMirage debug mask: 0x0

Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3)

Looks like a deadlock. Can't find GDBus package, guess that's my next rabbit hole to jump down, since MX uses a systemd shim for compatibility, it should be working, right? So maybe it's GDBus?

Looks like we're using DBus instead? Found these:

https://docs.gtk.org/gio/

https://docs.gtk.org/gio/migrating-gdbus.html

In hopes that the daemon was running successfully despite not returning control to the terminal window, I tried running gCDemu, it won't open. cdemu status locks up then displays:

$ cdemu status
ERROR: Failed to connect to CDEmu daemon: g-io-error-quark: Error calling StartServiceByName for net.sf.cdemu.CDEmuDaemon: Timeout was reached (24)

Poked around and here's the net.sf.cdemu.CDEmuDaemon.service file

[D-BUS Service]
Name=net.sf.cdemu.CDEmuDaemon
SystemdService=cdemu-daemon.service
Exec=/bin/true

/bin/true "does nothing and exits successfully" so...??

EDIT: Looks like I found the culprit for some of this. Missing the libmirage-plugin, which I had thought I saw get installed, but it was libmirage11 -- so I had to:
sudo add-apt-repository deb https://www.deb-multimedia.org bookworm main non-free
then sudo apt update & sudo apt install libmirage-plugin
then edit the /etc/apt/sources.list.d/archive_uri-https_www_deb-multimedia_org-bookworm.list and comment out all lines then sudo apt update again

Service still has the same error as before but now I can manually start it with cdemu-daemon --config-file ~/".config/cdemu-daemon"
It will still lock up that terminal window, but you can then seem to use cdemu. (If you Ctrl+C the terminal window it will close the daemon as well.)
I have not tested mounting anything, just the program can view device status.
For gCDEmu, you need to right-click the tray icon & quit, then start it back up from your menu and then it will see the devices properly.

There's a thread on the MX Linux forums about cdemu and I mentioned the above on it. You can find it here.

Ok, loading .cue files is a success and I've successfully played the audio tracks on the mixed mode CD (.bin) it referenced (data / audio combined). VLC can play back successfully, Asunder can view / rip the tracks, but Audacious and DeadBeef can't see the drive (hard coded CD device location?). Hope this helps someone out there.