Hi,

I have installed a custom Debian using the steps on eewiki 
<https://eewiki.net/display/linuxonarm/BeagleBone+Black>. I have downloaded 
the beaglebone-black-g-ether-load.sh 
<https://raw.github.com/RobertCNelson/tools/master/scripts/beaglebone-black-g-ether-load.sh>
 
script to load g_ether, and finally I have created a systemd service to 
load it as follows:

[Unit]
Description=Generic BeagleBone Black at boot time
Requires=systemd-journald.socket basic.target
After=local-fs.target systemd-journald.socket basic.target

[Service]
Type=simple
ExecStart=/opt/scripts/beaglebone-black-g-ether-load.sh
StandardOutput=journal
Restart=no

[Install]
WantedBy=multi-user.target

When booting the service outputs an error when loading the g_multi module:

may 22 12:54:57 beaglebone beaglebone-black-g-ether-load.sh[185]: cpsw.0: 
7C:66:9D:46:4B:43
may 22 12:54:57 beaglebone beaglebone-black-g-ether-load.sh[185]: cpsw.1: 
7C:66:9D:46:4B:45
may 22 12:54:57 beaglebone beaglebone-black-g-ether-load.sh[185]: modprobe: 
ERROR: could not insert 'g_multi': No such device

I have seen that there is another discussion 
<https://groups.google.com/forum/?place=forum/beagleboard&showsearch=true&showpopout=true&showtabs=true&hideforumtitle=true&parenturl=http%3A%2F%2Fbeagleboard.org%2FCommunity%2FForums#!searchin/beagleboard/g_multi$20%22No$20such$20device%22/beagleboard/6SKLJiOtIFM/fOfBriI6nqUJ>
 
related to this problem, but the difference in this case is that it load 
after login in the system and executing the script by hand.

I can't figure out what is the difference between both cases and why it 
doesn't work on boot.

More information:

root@beaglebone:~# printenv 
XDG_SESSION_ID=1
TERM=xterm
SHELL=/bin/bash
USER=root
MAIL=/var/mail/root
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PWD=/root
LANG=en_US.UTF-8
SHLVL=1
HOME=/root
LOGNAME=root
XDG_RUNTIME_DIR=/run/user/0
_=/usr/bin/printenv

Modules before loading:

root@beaglebone:~# lsmod
Module                  Size  Used by
musb_dsps               8465  0 
musb_hdrc              76896  1 musb_dsps
pruss_remoteproc       12702  0 
ti_am335x_adc           4766  0 
kfifo_buf               1941  1 ti_am335x_adc
industrialio           34965  2 ti_am335x_adc,kfifo_buf
musb_am335x             1075  0 
uio_pdrv_genirq         2824  0 
uio                     7008  1 uio_pdrv_genirq
usb_f_mass_storage     34731  0 
usb_f_rndis            17807  0 
u_ether                 9436  1 usb_f_rndis
libcomposite           38883  2 usb_f_rndis,usb_f_mass_storage

And after loading:

root@beaglebone:/opt/scripts# lsmod
Module                  Size  Used by
usb_f_acm               5695  1 
u_serial                9655  1 usb_f_acm
usb_f_ecm               7901  1 
g_multi                 3226  0 
musb_dsps               8465  0 
musb_hdrc              76896  1 musb_dsps
pruss_remoteproc       12702  0 
ti_am335x_adc           4766  0 
kfifo_buf               1941  1 ti_am335x_adc
industrialio           34965  2 ti_am335x_adc,kfifo_buf
musb_am335x             1075  0 
uio_pdrv_genirq         2824  0 
uio                     7008  1 uio_pdrv_genirq
usb_f_mass_storage     34731  2 g_multi
usb_f_rndis            17807  2 g_multi
u_ether                 9436  3 usb_f_ecm,usb_f_rndis,g_multi
libcomposite           38883  5 
usb_f_acm,usb_f_ecm,usb_f_rndis,g_multi,usb_f_mass_storage

Any idea why this is happening ?

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