debian@beaglebone:/mnt/media/etc$ su root Password: su: Authentication failure debian@beaglebone:/mnt/media/etc$ su root Password: su: Authentication failure debian@beaglebone:/mnt/media/etc$ sudo nano shadow GNU nano 2.7.4 File: shadow
root::18717:0:99999:7::: daemon:*:18112:0:99999:7::: bin:*:18112:0:99999:7::: sys:*:18112:0:99999:7::: sync:*:18112:0:99999:7::: games:*:18112:0:99999:7::: man:*:18112:0:99999:7::: lp:*:18112:0:99999:7::: mail:*:18112:0:99999:7::: news:*:18112:0:99999:7::: uucp:*:18112:0:99999:7::: proxy:*:18112:0:99999:7::: www-data:*:18112:0:99999:7::: backup:*:18112:0:99999:7::: list:*:18112:0:99999:7::: irc:*:18112:0:99999:7::: gnats:*:18112:0:99999:7::: nobody:*:18112:0:99999:7::: systemd-timesync:*:18112:0:99999:7::: systemd-network:*:18112:0:99999:7::: systemd-resolve:*:18112:0:99999:7::: systemd-bus-proxy:*:18112:0:99999:7::: _apt:*:18112:0:99999:7::: dnsmasq:*:18112:0:99999:7::: messagebus:*:18112:0:99999:7::: avahi:*:18112:0:99999:7::: sshd:*:18112:0:99999:7::: usbmux:*:18112:0:99999:7::: lightdm:*:18112:0:99999:7::: debian:rcdjoac1gVi9g:18112:0:99999:7::: bob::18717:0:99999:7::: [ Read 31 lines ] ^G Get Help ^O Write Out ^W Where Is ^K Cut Text ^J Justify ^C Cur Pos ^Y Prev Page M-\ First Line ^X Exit ^R Read File ^\ Replace ^U Uncut Text ^T To Spell ^_ Go To Line ^V Next Page M-/ Last Line On Wed, Mar 31, 2021 at 10:23 AM Bob Hammond <propgrin...@gmail.com> wrote: > Well, I thought it worked great but it doesn't. > > I applied all these commands to the BBB in question and specifically to > the root password entry but I am still unable to get into it. > When I attempt to log in with root, and enter a null password, I still get > "access denied". Same with all other usernames and passwords. > > Could it be a file permissions problem? > > On Wed, Mar 31, 2021 at 9:10 AM Bob Hammond <propgrin...@gmail.com> wrote: > >> amf, >> >> THIS works great! Thanks so much for the help. >> >> On Tue, Mar 30, 2021 at 8:52 AM amf <fittere...@gmail.com> wrote: >> >>> If you just want to reset the password on the new imaged BBB (this does >>> not explain why you had issue in the first place, but does allow you to >>> access the system) >>> clear the encrypted password as follows, (if you need detailed steps let >>> me know) >>> create a sdcard with a new image (one you download) and boot the BBB >>> with it. >>> then mount the emmc device >>> edit /etc/shadow file in the mounted emmc device (requires sudo) >>> find the user name you want to remove the password on >>> for example, my user name is 'amf' >>> amf:$6$jlBY96dq$V7tFs2xEv.a3kXArkyTEcEbGDX43d6UpzMcy/aplV8khxUFJKPMg0ugGBfWVZMpJRpaMXAATEAb5inu7/G.Iz1:16406:0:99999:7::: >>> >>> delete the stuff between the first two '::' >>> pi::16406:0:99999:7::: >>> save the shadow file >>> power off the BBB >>> remove sdcard, and power on the BBB >>> log in with the user name that the encrypted password was deleted on, no >>> login password is required, then set new password for the user. >>> >>> Hope this helps. >>> amf >>> On Tuesday, March 30, 2021 at 9:02:25 AM UTC-5 propg...@gmail.com wrote: >>> >>>> I am now attempting to get into GRUB during boot. I never see a GRUB >>>> menu show up by pressing/holding ESC or left shift. What I do see is that >>>> I can interrupt boot by pressing the spacebar. I then get a command prompt >>>> in ??. And I have no idea what to do after that. >>>> >>>> On Monday, March 29, 2021 at 6:27:52 AM UTC-7 Bob Hammond wrote: >>>> >>>>> Thanks Andrea. Once I get in, I will check the logs. The sshd is >>>>> likely up as you state. The BBB is protected by a firewall on my router >>>>> as >>>>> well as iptables. And no, I didn't have enforced sshd to accept only user >>>>> connection. >>>>> >>>>> All very good ideas! >>>>> >>>>> >>>>> On Sunday, March 28, 2021 at 6:05:22 AM UTC-7 andrea....@gmail.com >>>>> wrote: >>>>> >>>>>> I found this for the serial connection. >>>>>> >>>>>> >>>>>> https://www.dummies.com/computers/beaglebone/how-to-connect-the-beaglebone-black-via-serial-over-usb/ >>>>>> >>>>>> Some ideas : >>>>>> Once in as root, I would >>>>>> - change the root password : >>>>>> # passwd >>>>>> - The user password: >>>>>> # passwd username >>>>>> Check the logs focus in the time you had attempted the remote login - >>>>>> find why it was not allowed to login. >>>>>> Check the sshd service is enabled (however should be up) >>>>>> Have you hardened your configuration? Ie any firewall (iptables) , >>>>>> any fail2ban or something else; >>>>>> Enforced sshd to accept only user connection (no root)? >>>>>> >>>>>> A. >>>>>> >>>>>> On Sun, 28 Mar 2021, 14:48 Bob Hammond, <propg...@gmail.com> 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 <propg...@gmail.com> >>>>>>> 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 myi...@hotmail.com >>>>>>>> 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 <fitte...@gmail.com> 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 propg...@gmail.com >>>>>>>>> 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 >>>>>>>>> --- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "BeagleBoard" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to beagleboard...@googlegroups.com. >>>>>>>>> To view this discussion on the web visit >>>>>>>>> https://groups.google.com/d/msgid/beagleboard/833795ff-61b4-418c-a142-9aed980e01a7n%40googlegroups.com >>>>>>>>> <https://groups.google.com/d/msgid/beagleboard/833795ff-61b4-418c-a142-9aed980e01a7n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>>> . >>>>>>>>> >>>>>>>>> -- >>>>>>>> For more options, visit http://beagleboard.org/discuss >>>>>>>> --- >>>>>>>> You received this message because you are subscribed to a topic in >>>>>>>> the Google Groups "BeagleBoard" group. >>>>>>>> To unsubscribe from this topic, visit >>>>>>>> https://groups.google.com/d/topic/beagleboard/KvIoUzehk_o/unsubscribe >>>>>>>> . >>>>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>>>> beagleboard...@googlegroups.com. >>>>>>>> To view this discussion on the web visit >>>>>>>> https://groups.google.com/d/msgid/beagleboard/0fea8e1c-4c08-43cc-a023-5fce0b05209en%40googlegroups.com >>>>>>>> <https://groups.google.com/d/msgid/beagleboard/0fea8e1c-4c08-43cc-a023-5fce0b05209en%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>>>> . >>>>>>>> >>>>>>> -- >>>>>>> For more options, visit http://beagleboard.org/discuss >>>>>>> --- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "BeagleBoard" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to beagleboard...@googlegroups.com. >>>>>>> >>>>>> To view this discussion on the web visit >>>>>>> https://groups.google.com/d/msgid/beagleboard/CAKoB7OpieQonkXW003iq5APE2Ze74UMWBOrpNXF6q%3DSp8vZwMg%40mail.gmail.com >>>>>>> <https://groups.google.com/d/msgid/beagleboard/CAKoB7OpieQonkXW003iq5APE2Ze74UMWBOrpNXF6q%3DSp8vZwMg%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>>>>> . >>>>>>> >>>>>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to beagleboard+unsubscr...@googlegroups.com. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/03c226b8-ca48-4c3f-92ee-4f2c603bb57fn%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/03c226b8-ca48-4c3f-92ee-4f2c603bb57fn%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CAKoB7OrK0nMWT_eA9M7CzQpcn3XCccGh1Ec%2BGOSFdmi5O7CTbA%40mail.gmail.com.
