[yocto] problem adding a user

[Rudolf J Streif]

Hi Greg,


 > I've also tried both the back-quote and the single-quote, no difference.


Help me to understand this. the back-quotes are the right ones. If you 
use the single ones your password in the /etc/shadow ends up being 
'openssl passwd test' (without the quotes), unless the build fails 
because of a parsing error (I have not tried it). Silly question, you 
did inherit extrausers class?


Can you post your /etc/passwd and /etc/shadow


I am surprised that this does not work with your setup. I have been 
doing this a gazillion times always with success.


:rjs




On 5/15/19 11:03 AM, Greg Wilson-Lindberg wrote:
>
> Hi Rudolf,
>
> Thanks for the reply, and the information on how openssl works.
>
>
> I'm trying to create a user with the same group name so the code that 
> I'm using reduces to:
>
> EXTRA_USERS_PARAMS = "\
>      useradd -p `openssl passwd test` sakura; \
>      usermod -a -G sudo ${SAKURA_USER}; \
>      "
> I also, as you can see, removed the macros to eliminate as much 
> confusion as possible.
>
>
> I still can't login in using the password 'test'.
>
>
> I've also tried both the back-quote and the single-quote, no difference.
>
> Regards,
>
>
> Greg
>
> ------------------------------------------------------------------------
> *From:* Rudolf J Streif <rudolf.streif at ibeeto.com>
> *Sent:* Wednesday, May 15, 2019 10:07:47 AM
> *To:* Greg Wilson-Lindberg; Yocto list discussion
> *Subject:* Re: [yocto] problem adding a user
> Hi Greg,
>
> Well, I suppose I wrote the book you are referring to...
>
>
> Using
>
> useradd -p PASSWORD USER
>
> takes the password hash for PASSWORD hence the use of openssl in:
>
> useadd -p `openssl passwd PASSWORD` USER
>
> openssl password creates the password hash using the original crypt hash
> algorithm if no other options are specified. e.g.
>
> $ openssl passwd hello
> 6hEsTksgRkeiI
>
> With this the first two characters of the output is the salt and the
> rest is the password hash. If you want openssl to create the same result
> again:
>
> $ openssl passwd -salt "6h" hello
> 6hEsTksgRkeiI
>
> You can use newer algorithms like MD5 based BSD password algorithm 1:
>
> $ openssl passwd -1 hello
> $1$4Mu8Fcs.$eIKgPP7RCYrb3lFZjhADA1
>
> $1 : password algorithm 1
> $4Mu8Fcs. : salt
> $eIKgPP7RCYrb3lFZjhADA1 : password hash
>
>
> If you log into the system you have to use the clear password. The
> system reads the salt, creates the password hash and compares the results.
>
>
> :rjs
>
>
> On 5/14/19 5:34 PM, Greg Wilson-Lindberg wrote:
> > I'm trying to use the example in "Embedded Linux Systems with the 
> Yocto Project" to add a user to my Yocto build. In the book the sample 
> code:
> >
> >     useradd -p `openssl passwd ${DEV_PASSWORD}` developer; \
> >
> > uses openssl to generate the encrypted password string to pass to 
> useradd. I have never been able to get this to work. When I run the 
> openssl
> > command on the cmd line I get a different value every time, this 
> seems wrong, How can the password code compare against it if every encode
> > produces a different value?
> >
> > I am getting the user added to the system, the home directory shows 
> up and the user is in the passwd and group files. I just can't login 
> to the
> > account.
> >
> > I've obviously got something confused, any help would be appreciated.
> >
> > Greg Wilson-Lindberg
> >
>
> -- 
> -----
> Rudolf J Streif
> CEO/CTO ibeeto
> +1.855.442.3396 x700
>
-- 
-----
Rudolf J Streif
CEO/CTO ibeeto
+1.855.442.3396 x700

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