I'm going out on the limb here, but putty seem to have an issue with logins without a password. I'm sure some one can provide more input on this.
On Wednesday, March 31, 2021 at 12:59:59 PM UTC-5 [email protected] wrote: > > 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 <[email protected]> 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 <[email protected]> wrote: >> >>> amf, >>> >>> THIS works great! Thanks so much for the help. >>> >>> On Tue, Mar 30, 2021 at 8:52 AM amf <[email protected]> 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 [email protected] >>>> 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 [email protected] >>>>>> 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, <[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 >>>>>>>>>> --- >>>>>>>>>> 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 [email protected]. >>>>>>>>>> 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 [email protected]. >>>>>>>>> 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 [email protected]. >>>>>>>> >>>>>>> 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 [email protected]. >>>> 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. 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