Re: No password prompt on ttyACM0
* Gert Doering (gert@greenie.muc.de) [090218 20:45]:
> Hi,
>
> On Wed, Feb 18, 2009 at 11:35:06AM -0700, Sam Noble wrote:
> > I'm using some Zoom 2985C USB modems (and a few other similar cdc_acm
> > USB modems) for out-of-band management on my Vyatta routers (Read
> > "Debian Lenny/Testing Systems").
> [..]
> >At -x9 debug level, the older systems logs look like this:
> >
> >02/17 18:21:52 CM0 print welcome banner (/etc/issue.mgetty)
> >02/17 18:21:52 CM0 getlogname (FIDO AUTO_PPP), read:vyatta[0d]
> >02/17 18:22:00 CM0 input finished with '\r', setting ICRNL ONLCR
> >02/17 18:22:00 CM0 tio_get_rs232_lines: status: RTS CTS DSR DTR DCD
> >02/17 18:22:00 CM0 login: use login config file
> >/etc/mgetty/login.config
> >02/17 18:22:00 CM0 login: stat('/etc/mgetty/login.config') failed: No
> >such file or directory
> >02/17 18:22:00 CM0 login: fall back to /bin/login
> >02/17 18:22:00 CM0 calling login: cmd='/bin/login', argv[]='login
> >vyatta'
> >02/17 18:22:00 CM0 setenv: 'CALLER_ID=none'
> >02/17 18:22:00 CM0 setenv: 'CONNECT=115200'
> >02/17 18:22:00 CM0 setenv: 'DEVICE=ttyACM0'
> >02/17 18:22:00 ##### data dev=ttyACM0, pid=19074, caller='none',
> >conn='115200', name='', cmd='/bin/login', user='vyatta'
> >
> >But the problem systems never get to the tio_get_rs232_lines:
> [..]
> > I'm doing the dialing from minicom, And I've tried using the mgetty
> > version from the older systems on the new systems, but that seemed to
> > make no difference. I've also tried replacing the login deb with the one
> > from the older systems, but that also does not seem to make any
> > difference.
>
> This hints more at problems with the USB tty drivers.
>
> As in "if an application does stupid things like 'query serial lines
> status' then just hang, instead of returning useful information" -
> otherwise there would be something in the mgetty log.
>
> Is debian using a modified kernel, or "bog standard Linus distribution
> kernel"? You might want to try an "off the shelf" kernel...
Well, there is no real "standard kernel". I would also recommend to
try a few different linux kernel versions (also older ones from
Debian).
I copied the debian kernel mailinglist, perhaps there's some good
input from there.
Cheers,
Andi
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