What OS are you running on the BBB?  In most cases the BBB will export a
Linux USB gadget which is a composite device with mass storage and Ethernet
enabled by default.  Your Mac may need a driver.  Also passing USB devices
through to VM is not automatic.

On Sat, Sep 26, 2015, 5:17 AM Rick Mann <[email protected]> wrote:

> I'm unable to get the USB Mass Storage thing to work on my Mac, or my
> Ubuntu 14.04 VM. It's the little port, right, the mini-USB connector?
> Anyway, when I interrupt U-Boot, I did this:
>
> > => setenv umsmedia 0; gpio set 53; run findfdt; setenv mmcdev 1; setenv
> bootpart 1:1; run mmcboot
> >
> > FAILSAFE: U-Boot UMS (USB Mass Storage) enabled, media now available
> over the usb slave port ...
> > UMS: disk start sector: 0x0, count: 0x734000
> > musb-hdrc: peripheral reset irq lost!
>
> When I connect my Mac to the small port, the Mac reports a USB download
> gadget, not a mass storage device. When I try to connect that to the Linux
> VM, I don't see anything (but don't know where to look).
>
> Alternatively, how do I change the dyndbg setting that U-Boot is loading?
>
> The problem:
>
> I updated my uEnv.txt to turn on more debugging output, and I think it
> hosed part of the boot process, which times out now (it just repeats the
> last bit over and over):
>
> > Loading, please wait...
> > fsck from util-linux 2.25.2
> > BEAGLEBONE: recovering journal
> > BEAGLEBONE: clean, 43481/236176 files, 285892/943872 blocks
> > [    9.931380] rtlwifi: Firmware rtlwifi/rtl8192cufw_TMSC.bin not
> available
> > [   10.860147] libphy: PHY 4a101000.mdio:01 not found
> > [   10.864972] net eth0: phy 4a101000.mdio:01 not found on slave 1
> >          Starting Journal Service...
> > [ TIME ] Timed out waiting for device dev-ttyGS0.device.
> > [   95.707797] systemd[1]: Timed out waiting for device
> dev-ttyGS0.device.
> > [DEPEND] Dependency failed for Serial Getty on ttyGS0.
> > [   95.727835] systemd[1]: Dependency failed for Serial Getty on ttyGS0.
> >          Starting Journal Service...
> > [  OK  ] Stopped Trigger Flushing of Journal to Persistent Storage.
> >          Stopping Journal Service...
> > [  OK  ] Stopped Journal Service.
> >          Starting Journal Service...
> > [  OK  ] Started Journal Service.
> >          Starting Trigger Flushing of Journal to Persistent Storage...
> > [  OK  ] Started Trigger Flushing of Journal to Persistent Storage.
> > [ ***  ] A start job is running for LSB: Raise network interf...13s / no
> limit)
>
> These variables don't seem to be loaded into the environment, and I don't
> see an obvious command for adjusting them:
>
> > Running uname_boot ...
> > loading /boot/vmlinuz-4.1.4-ti-r9 ...
> > 8259336 bytes read in 473 ms (16.7 MiB/s)
> > loading /boot/dtbs/4.1.4-ti-r9/am335x-boneblack-emmc-overlay.dtb ...
> > 55644 bytes read in 28 ms (1.9 MiB/s)
> > loading /boot/initrd.img-4.1.4-ti-r9 ...
> > 4496957 bytes read in 272 ms (15.8 MiB/s)
> >
> > debug: [console=ttyO0,115200n8 dyndbg=file drivers/of* +pflm; file
> drivers/i2c* +pflm; file drivers/remoteproc +pflm; file sound* +pflm; file
> pinctrl/* +pflm; file drivers/gpio/* +pflm; file drivers/regulator* +pflm;
> file *cape* +pflm root=UUID=69f859b1-c308-41c9-8ca7-a3d0042031e8 ro
> rootfstype=ext4 rootwait fixrtc coherent_pool=1M quiet] ...
> >
> > debug: [bootz 0x82000000 0x88080000:449e3d 0x88000000] ...
>
>
> Thanks…
>
> --
> Rick Mann
> [email protected]
>
>
> --
> For more options, visit http://beagleboard.org/discuss
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