cannot login

[Lou_Reed]

Okay, I was unable to log in to my Parallella card yesterday. I am not sure if I tried the password too many times or that I just cannot remember the password. the software might only allow so many logons before shutting you out for a period.

So how do I recover my password? By using John the Ripper or is there a way to get it from linaro Ubuntu 14.04?

Any help appreciated. Thanks in advance.

Respectfully,

Lou_Reed

[9600]

It is far easier to reset a password than to crack it!

Simply insert the MicroSD card into another machine, mount the root filesystem, chroot into it and then use passwd to reset it. See e.g.:

http://www.howtogeek.com/howto/linux/re ... e-live-cd/

Regards,

Andrew

[Lou_Reed]

[sebraa]

The 'chroot' command changes to a different root filesystem, then runs a command.
However, this command should be executable, too. Your Epiphany image uses ARM binaries, so if you do these steps on a common PC (with an Intel or AMD cpu), it will not be able to execute the shell. The error message is misleading, since you get it even when the file exists.

You should edit /etc/shadow on the Epiphany root file system to remove the password instead.

[Lou Reed]

About that link that you provided to help in resetting the Ubuntu password on the Parallela.


http://www.howtogeek.com/howto/linux/re ... e-live-cd/


I believe it works, but do not forget that the password that needs to be reset is not on a desktop hard drive, but on the micro-SD card that
needs to be plugged into a USB(with all of the appropriate attachments used) port on the side of the computer (a laptop in my case).

My laptop has Windows 7 installed on its hard drive, so I am not even going there.

We are not resetting the password on the desktop's hard drive. So the following command must be altered.


Thus


sudo fdisk -1


must be modified since that tells you the device name of the hard drive and we want the device name
that the micro-SD card is using.

So how do I modify the above command?

I assume that the next step which is


sudo mkdir /media/sda1


is unchanged since we are just creating a directory to mount the micro-SD card on.

The following command :

sudo mount /dev/sda1 /media/sda1

must have in the first term "/dev/sda1 " changed whatever the device name the micro-SD card is using.

The next command


sudo chroot /media/sda1


is unchanged. Then we can change the password using the passwd command

I am not sure what the line:

Note that you'll have to type your username after the password command in order to change the right password.

means. It seems the included example does not show that.

Anyway, any help is appreciated. Thanks in advance.

Respectfully,


Lou Reed

[sebraa]

You cannot use Linux commands on Windows 7.
Also, Windows 7 can*t access the Linux file system on the SD card.

Rewrite the SD card instead.

[Lou Reed]

Okay, I never intended to use Windows in this endeavor. It was just a side point that I made. I should not have.

I will recreate the micro-SD card. I think that something is wrong in the instructions, however. I know there is more to it that just copying the image
over to the micro-SD card.

I assume that I will not have to reformat the micro-SD card.

However, where does the devicetree.dtb file get made or copied? I do not see it anywhere.

I have not created a new micro-SD card in a long while. I assume the instructions are correct, but they seem incomplete.

Any help appreciated.


Respectfully,


Lou Reed