[LCA2019 Chat] Headless RPi setup

[martin f krafft]

Quoting "Wes Cilldhaire", who wrote on 2019-01-22 at 21:55 Uhr +1100:
>I used this[0] method to get a serial console on it, then used 
>a normal usb-a to micro-usb cable plugged in to my laptop.  It sets 
>up a usb serial gadget driver on the pi which presents to the host 
>as a cdc_acm serial device then runs a getty on it.

I've followed this method byte for byte, but I see no serial device 
on the laptop.

On the Pi I just get the message

  "udc-core: couldn't find an available UDC - added [g_cdc] to list 
  of pending drivers."

which the article says means that I didn't enable the dwc2 properly. 

But hey:

# grep dwc /proc/cmdline
8250.nr_uarts=0 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 
bcm2708_fb.fbswap=1 smsc95xx.macaddr=B8:27:EB:3B:08:DD 
vc_mem.mem_base=0x1ec00000 vc_mem.mem_size=0x20000000  
dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 
root=PARTUUID=9a617d9a-02 rootfstype=ext4 elevator=deadline 
fsck.repair=yes rootwait modules-load=dwc2,g_cdc
                                      ^^^^^^^^^^

Also, yes, I've rebooted a second time.

It's also in /proc/modules, and there seem to be no errors in 
syslog.

Any clues? I mean, I can connect on Wifi, but I really want a serial 
console.

Thanks,

-- 
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