Comment 23 for bug 908500

Sorry for being a little dense. I created the grub.cfg file in /etc/grub-customizer/ with the following:
 MKCONFIG_CMD=grub2-mkconfig
 UPDATE_CMD=grub2-mkconfig -o /boot/grub2/grub.cfg
 INSTALL_CMD=grub2-install
 CFG_DIR=/etc/grub.d
 OUTPUT_DIR=/boot/grub2
 OUTPUT_FILE=/boot/grub2/grub.cfg
 SETTINGS_FILE=/etc/default/grub

I ran /usr/local/bin/grub-customizer as root and got:

(grub-customizer:2456): GVFS-RemoteVolumeMonitor-WARNING **: cannot connect to the session bus: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

(grub-customizer:2456): GVFS-RemoteVolumeMonitor-WARNING **: cannot connect to the session bus: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

(grub-customizer:2456): GVFS-RemoteVolumeMonitor-WARNING **: cannot connect to the session bus: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
 *** initializing (w/o specified bootloader type)…
   * reading partition info…
   * Loading Framebuffer resolutions (background process)
   * Finding out if this is a live CD
     [running on an installed system]
     [checking the burg-mkconfig command… ]
sh: hwinfo: command not found
     [not found]
     [using custom Grub2 configuration]
     [checking the command… ]
     [not found]