Hi,
I have installed a custom Debian using the steps on eewiki. I have downloaded the 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 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 ?