[yocto] problem adding a user
Rudolf Streif
rudolf.streif at ibeeto.com
Thu May 23 13:40:55 PDT 2019
Greg,
It eluded me earlier but in both instances the variable containing the
password does not seem to be expanded.
First version without the single quotes:
SAKURA_PASS = "$1$QVO3K6Ii$fvkoDKnlzz3d5uVoL7KcM0"
EXTRA_USERS_PARAMS = "\
usermod -p ${SAKURA_PASS} ${SAKURA_USER}; \
usermod -a -G sudo,dialout ${SAKURA_USER}; \
"
results in:
NOTE: scribe: Performing usermod with [-R
/home/gwilson/Qt/Qt-5.12.3/Yocto-build-RPi3/build-raspberrypi3/tmp/work/raspberrypi3-poky-linux-gnueabi/scribe/1.0-r0/rootfs
-p sakura]
and with the quotes:
SAKURA_PASS = "$1$QVO3K6Ii$fvkoDKnlzz3d5uVoL7KcM0"
EXTRA_USERS_PARAMS = "\
usermod -p '${SAKURA_PASS}' ${SAKURA_USER}; \
usermod -a -G sudo,dialout ${SAKURA_USER}; \
"
results in:
NOTE: scribe: Performing usermod with [-R
/home/gwilson/Qt/Qt-5.12.3/Yocto-build-RPi3/build-raspberrypi3/tmp/work/raspberrypi3-poky-linux-gnueabi/scribe/1.0-r0/rootfs
-p '' sakura]
It looks as if the variable SAKURA_PASS is not set at all. I looked at
your scribe.bb recipe you attached earlier but I could not find any
reason why the variable is not set. Is there a chance that it is
overridden somewhere elase?
:rjs
On Wed, May 22, 2019 at 1:28 PM Greg Wilson-Lindberg <GWilson at sakuraus.com>
wrote:
> Rudolf,
>
> Here is the first half of the file, the whole file is over the 500k limit
> of free pastebin:
>
> https://pastebin.com/UcnKebce
>
>
> And here is the 2nd half of the file:
>
> https://pastebin.com/9117tdUU
>
>
> Greg
> ------------------------------
> *From:* Rudolf Streif <rudolf.streif at ibeeto.com>
> *Sent:* Wednesday, May 22, 2019 12:42:40 PM
> *To:* Greg Wilson-Lindberg
> *Cc:* Yocto list discussion
> *Subject:* Re: [yocto] problem adding a user
>
> Greg,
> Can you share the logfile via Pastebin?
> :rjs
>
> On Tue, May 21, 2019 at 11:09 AM Greg Wilson-Lindberg <
> GWilson at sakuraus.com> wrote:
>
>> Rudolf,
>>
>> Something else is happening to me. I changed to this in the image recipe:
>>
>> SAKURA_USER = "sakura"
>>
>> SAKURA_PASSWD = "Distracted"
>> SAKURA_PASS = "$1$QVO3K6Ii$fvkoDKnlzz3d5uVoL7KcM0"
>>
>> EXTRA_USERS_PARAMS = "\
>> usermod -p '${SAKURA_PASS}' ${SAKURA_USER}; \
>> usermod -a -G sudo,dialout ${SAKURA_USER}; \
>> "
>>
>> deleting all of the commented out lines, and I get this in the log file:
>>
>>
>> ..../scribe/1.0-r0/rootfs -p '' sakura]
>>
>>
>> nothing between the single quotes. It's acting like SAKURA_PASS is not
>> defined.
>>
>> This is only happening when I'm trying the MD5 password.
>>
>>
>> Greg
>> ------------------------------
>> *From:* Rudolf Streif <rudolf.streif at ibeeto.com>
>> *Sent:* Tuesday, May 21, 2019 5:37:23 AM
>> *To:* Greg Wilson-Lindberg
>> *Cc:* Yocto list discussion
>> *Subject:* Re: [yocto] problem adding a user
>>
>> Greg,
>>
>> usermod does not work for the MD5 algorithm with the explicit password
>> hash as it contains the $ field delimiters which are interpreted by the
>> shell executing the usermod command. Use single quotes around the password
>> hash:
>>
>> usermod -p '${SAKURA_PASS}' ${SAKURA_USER};
>>
>> :rjs
>>
>> On Mon, May 20, 2019, 11:55 Greg Wilson-Lindberg <GWilson at sakuraus.com>
>> wrote:
>>
>>> Hi Rudolf,
>>>
>>> I've had more time to work with this and I'm still having problems getting
>>> everything to work properly. I've attached the image recipe recipe that I'm
>>> using so I don't leave any thing out that may be relevant.
>>>
>>> When I build with a password that is no more more than 8 characters long
>>> and no non-alphabetic characters:
>>>
>>> SAKURA_PASSWD = "Distract"
>>> SAKURA_PASS = "WRsDFfg1BsrDM"
>>>
>>> everything works correctly.
>>>
>>> I first tried that using the `openssl ...` form, and then I tried the
>>> -1, MD5 BSD form and had problems, so I changed to doing the openssl
>>> on the command line and making sure that I don't have any characters
>>> that display as '.' or '/'. Again, if I don't do more than 8 characters
>>> and no special characters everything works.
>>>
>>> When I changed to using 'Ds$tr at ct' it stopped working. The build finishes
>>> and the log file shows the usermod being exectued correctly:
>>>
>>> NOTE: scribe: Performing usermod with [-R /home/gwilson/Qt/Qt-5.12.3/Yocto-build-RPi3/build-raspberrypi3/tmp/work/raspberrypi3-poky-linux-gnueabi/scribe/1.0-r0/rootfs -p kyNsrvS0elMWU sakura]
>>> NOTE: scribe: Performing usermod with [-R /home/gwilson/Qt/Qt-5.12.3/Yocto-build-RPi3/build-raspberrypi3/tmp/work/raspberrypi3-poky-linux-gnueabi/scribe/1.0-r0/rootfs -a -G sudo,dialout sakura]
>>>
>>> But when I try to sign in it doesn't work.
>>>
>>> I then tried the 10 character password 'Distracted', the build fails:
>>>
>>> NOTE: scribe: Performing usermod with [-R /home/gwilson/Qt/Qt-5.12.3/Yocto-build-RPi3/build-raspberrypi3/tmp/work/raspberrypi3-poky-linux-gnueabi/scribe/1.0-r0/rootfs -p sakura]
>>> Usage: usermod [options] LOGIN
>>>
>>> Options:
>>> -c, --comment COMMENT new value of the GECOS field
>>> -d, --home HOME_DIR new home directory for the user account
>>> -e, --expiredate EXPIRE_DATE set account expiration date to EXPIRE_DATE
>>> -f, --inactive INACTIVE set password inactive after expiration
>>> to INACTIVE
>>> -g, --gid GROUP force use GROUP as new primary group
>>> -G, --groups GROUPS new list of supplementary GROUPS
>>> -a, --append append the user to the supplemental GROUPS
>>> mentioned by the -G option without removing
>>> him/her from other groups
>>> -h, --help display this help message and exit
>>> -l, --login NEW_LOGIN new value of the login name
>>> -L, --lock lock the user account
>>> -m, --move-home move contents of the home directory to the
>>> new location (use only with -d)
>>> -o, --non-unique allow using duplicate (non-unique) UID
>>> -p, --password PASSWORD use encrypted password for the new password
>>> -P, --clear-password PASSWORD use clear password for the new password
>>> -R, --root CHROOT_DIR directory to chroot into
>>> -s, --shell SHELL new login shell for the user account
>>> -u, --uid UID new UID for the user account
>>> -U, --unlock unlock the user account
>>> -v, --add-subuids FIRST-LAST add range of subordinate uids
>>> -V, --del-subuids FIRST-LAST remove range of subordinate uids
>>> -w, --add-subgids FIRST-LAST add range of subordinate gids
>>> -W, --del-subgids FIRST-LAST remove range of subordinate gids
>>>
>>> ERROR: scribe: usermod command did not succeed.
>>>
>>> So, even though I'm putting in the openssl output:
>>> openssl passwd -1 "Distracted"
>>> $1$QVO3K6Ii$fvkoDKnlzz3d5uVoL7KcM0
>>>
>>> that I get back from what should be a valid run of openssl, I don't see anything
>>> from the password on the usermod command line:
>>> "...linux-gnueabi/scribe/1.0-r0/rootfs -p sakura]"
>>>
>>> I don't understand why the short passwords and passing along the proper hash works,
>>> but not the longer password.
>>>
>>> It also doesn't make sense that I can't put in the '$' & '@' characters and
>>> have them work.
>>>
>>> Any suggestions would be greatly appreciated.
>>>
>>> Greg
>>>
>>> ------------------------------
>>> *From:* Rudolf Streif <rudolf.streif at ibeeto.com>
>>> *Sent:* Wednesday, May 15, 2019 4:58:26 PM
>>> *To:* Greg Wilson-Lindberg
>>> *Cc:* Yocto list discussion
>>> *Subject:* Re: [yocto] problem adding a user
>>>
>>> Glad to hear that it works now. I am planning on attending the YP
>>> DevDay.
>>>
>>> :rjs
>>>
>>> On Wed, May 15, 2019, 13:53 Greg Wilson-Lindberg <GWilson at sakuraus.com>
>>> wrote:
>>>
>>>> Thank you very much, that got me back on the right path.
>>>>
>>>> Maybe I'll see you at the Yocto day at the Embedded Linux Conference.
>>>>
>>>> Regards,
>>>>
>>>> [image: cid:image001.png at 01D35D7D.179A7510]
>>>>
>>>> *Greg Wilson-Lindberg *
>>>>
>>>> *Principal Firmware Engineer | Sakura Finetek USA, Inc. *
>>>>
>>>>
>>>>
>>>> 1750 W 214th Street | Torrance, CA 90501 | U.S.A.
>>>>
>>>> T: +1 310 783 5075
>>>>
>>>> F: +1 310 618 6902 | E: gwilson at sakuraus.com
>>>>
>>>> www.sakuraus.com
>>>>
>>>>
>>>>
>>>> [image: cid:image002.png at 01D35D7D.179A7510]
>>>>
>>>> [image: cid:image003.png at 01D35D7D.179A7510]
>>>> ------------------------------
>>>>
>>>> Confidentiality Notice: This e-mail transmission may contain
>>>> confidential or legally privileged information that is intended only for
>>>> the individual or entity named in the e-mail address. If you are not the
>>>> intended recipient, you are hereby notified that any disclosure, copying,
>>>> distribution, or reliance upon the contents of this e-mail is strictly
>>>> prohibited. If you have received this e-mail transmission in error, please
>>>> reply to the sender, so that Sakura Finetek USA, Inc. can arrange for
>>>> proper delivery, and then please delete the message from your inbox. Thank
>>>> you.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *From:* Rudolf J Streif [mailto:rudolf.streif at ibeeto.com]
>>>> *Sent:* Wednesday, May 15, 2019 01:30 PM
>>>> *To:* Greg Wilson-Lindberg <GWilson at sakuraus.com>; Yocto list
>>>> discussion <yocto at yoctoproject.org>
>>>> *Subject:* Re: [yocto] problem adding a user
>>>>
>>>>
>>>>
>>>> Instead of
>>>>
>>>>
>>>>
>>>> useradd -p `openssl passwd test` sakura
>>>>
>>>>
>>>>
>>>> which attempts to add the user and set the password which fails if the
>>>> user already exists, use
>>>>
>>>>
>>>>
>>>> usermod -p `openssl passwd test` sakura
>>>>
>>>>
>>>>
>>>> which sets the user's password.
>>>>
>>>>
>>>>
>>>> :rjs
>>>>
>>>>
>>>>
>>>> On 5/15/19 1:18 PM, Greg Wilson-Lindberg wrote:
>>>>
>>>> Ok, I had been using the useradd class in a couple of other recipes to
>>>> allow me to copy files to the sakura user directory and another location,
>>>> but owned by sakura. That seems to have been what was causing the problem.
>>>>
>>>>
>>>>
>>>> I had been using the extrausers class in my top level image recipe.
>>>>
>>>>
>>>> So now how do I get all of this to work together? Do I need to put
>>>> everything that touches the sakura user in the same recipe? It seems that I
>>>> need to use only one of the useradd or extrausers classes?
>>>>
>>>>
>>>>
>>>> Greg
>>>> ------------------------------
>>>>
>>>> *From:* Rudolf J Streif <rudolf.streif at ibeeto.com>
>>>> <rudolf.streif at ibeeto.com>
>>>> *Sent:* Wednesday, May 15, 2019 12:31 PM
>>>> *To:* Greg Wilson-Lindberg; Yocto list discussion
>>>> *Subject:* Re: [yocto] problem adding a user
>>>>
>>>>
>>>>
>>>> The ! for the password in /etc/shadow indicates that the account is
>>>> disabled:
>>>>
>>>> sakura:!:18031:0:99999:7:::
>>>>
>>>>
>>>>
>>>> Either there is something wrong with the password generation or it gets
>>>> disabled by something else. Maybe it's worth trying with a plain image
>>>> without Boot2Qt or anything else.
>>>>
>>>>
>>>>
>>>> :rjs
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On 5/15/19 11:46 AM, Greg Wilson-Lindberg wrote:
>>>>
>>>> Hi Rudolf,
>>>>
>>>> 1st, yes I inherit extrausers. Attached are the passwd & shadow files.
>>>>
>>>>
>>>>
>>>> It shouldn't make any difference, but I'm building this for an RPi3
>>>> using the Qt Boot2Qt version of the Yocto environment, distro 2.5.3.
>>>>
>>>>
>>>>
>>>> Greg
>>>> ------------------------------
>>>>
>>>> *From:* Rudolf J Streif <rudolf.streif at ibeeto.com>
>>>> <rudolf.streif at ibeeto.com>
>>>> *Sent:* Wednesday, May 15, 2019 11:26 AM
>>>> *To:* Greg Wilson-Lindberg; Yocto list discussion
>>>> *Subject:* Re: [yocto] problem adding a user
>>>>
>>>>
>>>>
>>>> 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>
>>>> <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
>>>>
>>>> --
>>>>
>>>> -----
>>>>
>>>> Rudolf J Streif
>>>>
>>>> CEO/CTO ibeeto
>>>>
>>>> +1.855.442.3396 x700
>>>>
>>>> --
>>>>
>>>> -----
>>>>
>>>> Rudolf J Streif
>>>>
>>>> CEO/CTO ibeeto
>>>>
>>>> +1.855.442.3396 x700
>>>>
>>>>
>
> --
> Rudolf J Streif
> CEO/CTO
> ibeeto, Streif Enterprises Inc.
>
--
Rudolf J Streif
CEO/CTO
ibeeto, Streif Enterprises Inc.
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