I have 5 machines in my Yocto workspace. Is there a way to add users based on machine type?
For example:
Machine 1 has user1, user2
Machine 2 has user1, user2, user3
The useradd-example.bb recipe demonstrates how to write a recipe that creates multiple users, each in their own package.
First, you could follow that example's pattern to create packages for each of the users you need:
# customusers.bb
inherit useradd
PACKAGES =+ "${PN}-user1 ${PN}-user2 ${PN}-user3"
USERADD_PACKAGES = "${PN}-user1 ${PN}-user2 ${PN}-user3"
USERADD_PARAM_${PN}-user1 = "-u 1001 -d /home/user1 -r user1"
USERADD_PARAM_${PN}-user2 = "-u 1002 -d /home/user2 -r user1"
USERADD_PARAM_${PN}-user3 = "-u 1003 -d /home/user3 -r user1"
Then, in each machine.conf file you can add the appropriate packages using MACHINE_ESSENTIAL_EXTRA_RDEPENDS, e.g.:
# machine1.conf
MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "\
customusers-user1 \
customusers-user2 \
"
# machine2.conf
MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "\
customusers-user1 \
customusers-user2 \
customusers-user3 \
"
Related
I am trying to set the root user password in a custom recipe for yocto Dunfell.
Recipe looks like this: I have also tried EXTRA_USERS_PARAMS_append as shown in some other stackOverflow posts and it also did not work.
SUMMARY = "Test"
LICENSE = "CLOSED"
# Remove debugging tweaks
IMAGE_FEATURES_remove += " \
debug-tweaks \
"
# Add root password, and add the 'test' user
inherit extrausers
EXTRA_USERS_PARAMS = " \
usermod -P testpasswd root; \
useradd -p '' test \
"
FILES_${PN} = " /test/temp \
"
do_install () {
install -d ${D}/test/tmp
}
If I build this with my recipe, I can login as root with no password and when I check /etc/shadow the test user is not created.
I have verified that my desired directory /test/temp is created.
You should also remove allow-empty-password and empty-root-password features from IMAGE_FEATURES if they maybe available. enter link description here
and You didn't use semicolons at end of useradd -p '' test . This can cause error.
And you should be sure that debug-tweaks is not added at other strong files like local.conf
I am using the meta-tegra warrior branch layer to build an sd card image for the Nvidia Jetson Nano. The image completes and the board boots, but I cannot log in if I try to set any kind of password in Yocto. I've tried creating users other than root and setting their passwords, but the same problem occurs where I cannot log in.
If I leave "debug-tweaks" enabled, and do not attempt to modify the root password at all, I can successfully log in without a password.
I am using warrior branch for OE and haven't modified other layers. How can I set a password for root?
Here are my local.conf password related lines:
# Password Stuff
INHERIT += "extrausers"
#EXTRA_IMAGE_FEATURES = "debug-tweaks"
EXTRA_USERS_PARAMS = "usermod -P mypassword123 root; "
EXTRA_USERS_PARAMS = " useradd testing; \
useradd mts; \
usermod -p 'testing12345' testing; \
usermod -p 'comp12345' comp; \
usermod with -p (minus p) needs a hash generated from openssl passwd command so you need to set Yocto variable as following:
EXTRA_USERS_PARAMS = "usermod -p $(openssl passwd <some_password>) root;"
If you want to append something to bitbake variable, you need to use _append or += operators, ie:
EXTRA_USERS_PARAMS_append = " useradd testing;"
EXTRA_USERS_PARAMS_append = " useradd mts;"
...
I have a recipe to add a user called foo:
inherit useradd
USERADD_PACKAGES = "${PN}"
USERADD_PARAM_${PN} = "-P foo -u 1000 -d /home/foo -r -s /bin/bash foo;"
LICENSE = "CLOSED"
do_install () {
install -d ${D}/data/docker
install -d ${D}/home/foo
chown -R foo ${D}/home/foo
chown -R foo ${D}/data/docker
}
FILES_${PN} = " \
/home/foo \
/data \
"
For an obscure reason, data/docker is owned by foo but not /home/foo. Any idea why?
Actually, you don't need to install /home/foo(nor chown) since that task should be already accomplished by useradd, thus you can remove those commands. However, you might want to modify your recipe as follows:
do_install () {
install -d -m 755 ${D}${datadir}/foo
install -d -m 755 ${D}/data/docker
chown -R foo ${D}${datadir}/foo
chown -R foo ${D}/data/docker
}
FILES_${PN} = "${datadir}/foo/* /data/docker/*"
So the reason was that another recipe was creating a subfolder in the home directory first and was owned by root by default.
When the recipe to add the user was baked, the home folder was already created with root permissions.
My solution was to add the creation of this folder in the recipe adding the user instead.
Thanks #danior for the corrections
I have created a custom group e.g "grp1" in my application recipe say "app.bb".
GROUPADD_PARAM_${PN} = "grp1"
I am trying to add my custom user e.g: "user1" to this group "grp1" in "space.bb".
USERADD_PARAM_${PN} = "-d ${localstatedir}/lib/space/ -s /bin/false -G grp1 -U user1"
The useradd command failed: "useradd: group 'grp1' does not exist".
I have also tried adding DEPENDS_${PN} = "app" in space.bb, but it doesn't help.
How can I add my custom user to my custom group in bitbake recipe?
another possible cause of this error, if some recipe is using
inherit extrauser
instead of
inherit useradd
and adding the same group grp1 with the help of
EXTRA_USERS_PARAMS = "\
useradd -p '' grp1; \
groupadd grp1; \
"
instead of classical
GROUPADD_PARAM_libAPP = "grp1"
USERADD_PARAM_libAPP = "--no-create-home --home /var/tmp --shell /bin/nologin --gid grp1 grp1"
will cause a group grp1 duplication and failure of the useradd command
For the YoctoProject (v2.0, Jethro) the ownership of files inside the image defaults to user and group root unless I do explicitly change them by chown and chgrp in the do_install step for the given recipe.
I have a few recipes for which all files should be owned by another group and user than root. Is there a (cleaner/smarter) way to achieve this without calling chown and chgrp in do_install?
BSP vendors do usually provide example recipes to solve basic tasks.
Usually folder is called "recipes-skeleton"
User/Group add recipe sample path for freescale BSP:
~/yocto/fsl-community-bsp/sources/poky/meta-skeleton/recipes-skeleton/useradd/useradd-example.bb
Same can be found on github:
https://github.com/dirtybit/gumstix-yocto/blob/master/meta-skeleton/recipes-skeleton/useradd/useradd-example.bb
For changing root user info look up EXTRA_USERS_PARAMS flag. Need to inherit "extrausers" class first. Documentation on class is at:
http://www.yoctoproject.org/docs/current/mega-manual/mega-manual.html#ref-classes-extrausers
You can easily add user adding the following to your recipe.
inherit extrausers
EXTRA_USERS_PARAMS = " useradd user1; \
useradd user2; \
useradd user3; \
usermod -p 'user1_psw' user1; \
usermod -p 'user2_psw' user2; \
usermod -p 'user3_psw' user3;\
usermod -a -G sudo user1; \
usermod -a -G sudo user2; \
usermod -a -G sudo user3; "