At Sun, 28 Mar 2021 11:20:51 -0700 [email protected] wrote:

> 
> As I said in the first post on this issue:  I had run the procedure to make
> an image of the functional BBB on which I could log into with both a
> username and with root.  After I ran that procedure, I was then unable to
> log in with ANY username and password.
> 
> The caps lock is off.  Yes, I know that UNIX/Linux is case sensitive.
> 
> Both BBB are running a recent version of Debian with custom code for
> seismic data collection via a digitizer cape.
> 
> I have an identical BBB with an identical digitizer cape running the same
> microSD image as the problem BBB that I CAN log into with both a username
> as well as root.  So, I know the image works properly.
> 

OK, somehow you have managed (?) to either change the usernames or passwords 
or have done something to mess up file permssions.  You only choise is to 
either use another Linux machine to mount the file system on the SD can hack 
things (eg fix the file system perms or hand edit the password file).  Or boot 
the machine into single user mode -- this will mean you need to get a FTTI 
server port cable and intercept the boot process and edit the boot command 
line in the uBoot CLI.

Question: I am assuming you are booting a uSD card.  Is there an O/S in the 
eMMC?  If you can you boot that and log into that?  If so, pull the uSD card 
out, boot the eMMC and then reisert the uSD card.  You will now have a Linux 
system that can mount the uSD card and you can see what happened and maybe fix 
things.

> 
> 
> On Sun, Mar 28, 2021 at 10:16 AM Robert Heller <[email protected]> wrote:
> 
> > At Sun, 28 Mar 2021 10:01:55 -0700 [email protected] wrote:
> >
> > >
> > > Upon typing the password, I get:
> > >
> > > Access denied.
> >
> > Question: were you ever able to login to these machines in the past?
> > (Obvious, but needs to be asked): do you have the caps lock key on?  The
> > stock
> > username and password are in all *lower case* and both the username and
> > password are case sensitive.
> >
> > Are these machines running a stock microSD image?
> > >
> > >
> > > On Sun, Mar 28, 2021 at 9:47 AM jonnymo <[email protected]> wrote:
> > >
> > > > What is the error that you are seeing when the login fails?
> > > >
> > > > Jon
> > > >
> > > > On Sun, Mar 28, 2021 at 9:39 AM Bob Hammond <[email protected]>
> > wrote:
> > > >
> > > >> PuTTY (and WinSCP) are used on a host PC running Windows 7
> > Professional.
> > > >> Yes, I'm certain of the IPs for both BBB.  Both BBB are connected to
> > my
> > > >> network via hardwire to a switch.
> > > >>
> > > >> I can see both BBB using web pages (and therefore IP addresses) I set
> > up
> > > >> on them.  Both are running ok.  Both ping ok.  Both can be accessed
> > via
> > > >> PuTTY and WinSCP.
> > > >> So, they are functional.
> > > >>
> > > >> I just simply cannot log into them with any known username/password.
> > > >>
> > > >> Bob
> > > >>
> > > >> On Sun, Mar 28, 2021 at 9:32 AM jonnymo <[email protected]> wrote:
> > > >>
> > > >>> Are you using Windows or Linux on your host PC?  Since you mention
> > > >>> PuTTY, I would assume it is windows.
> > > >>> You could try to connect to the BB using the USB Network options:
> > > >>>
> > > >>>
> > https://www.digikey.com/en/maker/blogs/how-to-connect-a-beaglebone-black-to-the-internet-using-usb
> > > >>>
> > > >>> Are you certain the IP you are connecting to is the new BB?
> > > >>> How is the BB connected to your network?
> > > >>>
> > > >>> If you can get a serial or USB Network connection you can check for
> > the
> > > >>> IP with"
> > > >>>    $ *ip a*
> > > >>>
> > > >>> If you have another Linux system on your network, you can scan for
> > IPs
> > > >>> with the following:
> > > >>> NOTE: Chane 192.168.1.x to what is appropriate for your network.
> > > >>>      $ *for i in {1..255}; do (ping 192.168.1.$i -c 1 -w 5 >/dev/null
> > > >>> && echo "192.168.1.$i" &); done*
> > > >>>
> > > >>> Cheers,
> > > >>>
> > > >>> Jon
> > > >>>
> > > >>> On Sun, Mar 28, 2021 at 5:48 AM Bob Hammond <[email protected]>
> > > >>> wrote:
> > > >>>
> > > >>>> I am using a windows machine with PuTTY to connect to the BBB.
> > > >>>>
> > > >>>> On Sun, Mar 28, 2021 at 5:44 AM Bob Hammond <[email protected]>
> > > >>>> wrote:
> > > >>>>
> > > >>>>> I am able to connect to the BBB with PuTTY and get a prompt to log
> > > >>>>> in.  I have tried debian/temppwd and that doesn't work.
> > > >>>>>
> > > >>>>> I've read about using a serial connection to the BBB and
> > interrupting
> > > >>>>> the boot sequence to gain access.  Anyone done that?
> > > >>>>>
> > > >>>>> On Saturday, March 27, 2021 at 4:41:30 PM UTC-7 [email protected]
> > > >>>>> wrote:
> > > >>>>>
> > > >>>>>> Try logging in as user : debian
> > > >>>>>> Password: temppwd
> > > >>>>>>
> > > >>>>>> Check your spelling after u enter user name
> > > >>>>>>
> > > >>>>>> Sent from my iPhone
> > > >>>>>>
> > > >>>>>> On Mar 27, 2021, at 7:12 PM, amf <[email protected]> wrote:
> > > >>>>>>
> > > >>>>>> 
> > > >>>>>>
> > > >>>>>> I followed your instructions, once I obtained the new ip, I was
> > able
> > > >>>>>> to login as the user of the origanl BBB.
> > > >>>>>> Without knowing details of your setup it is difficult to help
> > > >>>>>> is your desktop/laptop a windows or linux machine?
> > > >>>>>> if linux you can get the ip of the new BBB with "ping
> > > >>>>>> <hostname>.local" provided 'avahi' is installed (there may be
> > other ways,
> > > >>>>>> this works for me)
> > > >>>>>>
> > > >>>>>> ping beaglebone.local
> > > >>>>>> PING beaglebone.local (192.168.3.108) 56(84) bytes of data.
> > > >>>>>> 64 bytes from 192.168.3.108: icmp_seq=1 ttl=64 time=1.31 ms
> > > >>>>>>
> > > >>>>>> if windows, someone else will need to chime in,
> > > >>>>>>
> > > >>>>>>
> > > >>>>>>
> > > >>>>>> On Saturday, March 27, 2021 at 7:39:21 AM UTC-5
> > [email protected]
> > > >>>>>> wrote:
> > > >>>>>>
> > > >>>>>>> I duplicated my BBB setup to a SD card using this procedure:
> > > >>>>>>>
> > > >>>>>>> Debian distribution:
> > > >>>>>>>
> > > >>>>>>>    1. Boot master BBB with no SD card in
> > > >>>>>>>    2. Insert SD card
> > > >>>>>>>    3. Log in (e.g. with serial terminal, SSH etc.) and run sudo
> > > >>>>>>>
> > /opt/scripts/tools/eMMC/beaglebone-black-make-microSD-flasher-from-eMMC.sh.
> > > >>>>>>>    LEDs will flash in sequence whilst SD card is being written.
> > > >>>>>>>    4. When the LEDs stop and the script terminates, remove the SD
> > > >>>>>>>    card.
> > > >>>>>>>    5. Insert SD card into new BBB then power on.
> > > >>>>>>>    6. eMMC will be flashed; LEDs on new BBB will flash in
> > sequence
> > > >>>>>>>    until complete.
> > > >>>>>>>
> > > >>>>>>> After doing this, I rebooted the BBB.
> > > >>>>>>>
> > > >>>>>>> Now, I am unable to remotely log in using PuTTY, user is root,
> > and
> > > >>>>>>> root password.  Or any other username and password.
> > > >>>>>>>
> > > >>>>>>> The BBB is running fine (collecting seismic data) but I am
> > > >>>>>>> completely locked out!
> > > >>>>>>>
> > > >>>>>>> Any suggestions on how to get access to the BBB?
> > > >>>>>>>
> > > >>>>>> --
> > > >>>>>> For more options, visit http://beagleboard.org/discuss
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> > >
> > > >>>>>> .
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> > > >>>>> <
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> > >
> > > >>>>> .
> > > >>>>>
> > > >>>> --
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> > >
> > > >>>> .
> > > >>>>
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> > > >>> <
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> > >
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> > > >> <
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> > >
> > > > .
> > > >
> > >
> >
> > --
> > Robert Heller             -- Cell: 413-658-7953 GV: 978-633-5364
> > Deepwoods Software        -- Custom Software Services
> > http://www.deepsoft.com/  -- Linux Administration Services
> > [email protected]       -- Webhosting Services
> >
> >
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> > .
> >
> 

-- 
Robert Heller             -- Cell: 413-658-7953 GV: 978-633-5364
Deepwoods Software        -- Custom Software Services
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