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elogind is a big, what instead of consolekit? [solved]
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RayDude
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PostPosted: Thu Aug 26, 2021 3:17 pm    Post subject: elogind is a big, what instead of consolekit? [solved] Reply with quote

I just did a stage3 install on a dual core arm (a hardware I designed using a Cyclone V SOC).

I got it working pretty well, but there is no console with the stage 3 tarball.

This is the depgraph for elogind:

Code:
Frankie_Baby ~ # equery g elogind
 * Searching for elogind ...

 * dependency graph for sys-auth/elogind-246.10-r1
 `--  sys-auth/elogind-246.10-r1  arm
   `--  sys-process/audit-3.0  (sys-process/audit) arm
   `--  sys-apps/util-linux-2.36.2-r1  (sys-apps/util-linux) arm
   `--  sys-libs/libcap-2.49-r1  (sys-libs/libcap) arm
   `--  virtual/libudev-232-r4  (virtual/libudev) arm
   `--  sys-apps/acl-2.3.1  (sys-apps/acl) arm
   `--  sys-libs/pam-1.5.1-r1  (sys-libs/pam) arm
   `--  sys-libs/libselinux-9999  (sys-libs/libselinux) [missing keyword]
   `--  sys-apps/dbus-1.12.20-r3  (sys-apps/dbus) arm
   `--  sys-auth/polkit-0.119-r2  (sys-auth/polkit) arm
   `--  app-text/docbook-xml-dtd-4.2-r3  (app-text/docbook-xml-dtd) arm
   `--  app-text/docbook-xml-dtd-4.5-r2  (app-text/docbook-xml-dtd) arm
   `--  app-text/docbook-xsl-stylesheets-1.79.1-r2  (app-text/docbook-xsl-stylesheets) arm
   `--  dev-util/gperf-3.1  (dev-util/gperf) arm
   `--  dev-util/intltool-0.51.0-r2  (dev-util/intltool) arm
   `--  virtual/pkgconfig-2  (virtual/pkgconfig) arm
   `--  dev-util/meson-0.58.2  (>=dev-util/meson-0.56.0) arm
   `--  dev-util/ninja-1.10.1  (>=dev-util/ninja-1.8.2) arm
   `--  dev-util/meson-format-array-0  (dev-util/meson-format-array) arm
[ sys-auth/elogind-246.10-r1 stats: packages (19), max depth (1) ]


This system only has 1G of memory and has been trying to install llvm and rust and you know what? There isn't enough memory to build them.

I can't figure out why they are needed.

But that's beside the point. I need a console and elogind is just not a possibility. I mean look at that depgraph. Why does it need all that crap? It's a stupid console.

Any suggestions?

Thanks in advance.
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Last edited by RayDude on Fri Aug 27, 2021 3:27 am; edited 1 time in total
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mike155
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PostPosted: Thu Aug 26, 2021 3:24 pm    Post subject: Reply with quote

Which package(s) pull(s) in elogind?

Look at the output of:
Code:
equery d elogind

and
Code:
emerge --update --deep --changed-use --tree -pv @world

Which profile do you use?
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RayDude
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PostPosted: Thu Aug 26, 2021 3:38 pm    Post subject: Reply with quote

Code:
Frankie_Baby ~ # equery d elogind
 * These packages depend on elogind:
sys-auth/pambase-20210201.1 (elogind ? sys-auth/elogind[pam])
sys-process/procps-3.3.17-r1 (elogind ? sys-auth/elogind)
Frankie_Baby ~ # emerge --update --deep --changed-use --tree -pv @world

These are the packages that would be merged, in reverse order:

Calculating dependencies... done!
[nomerge       ] virtual/ssh-0::gentoo  USE="-minimal"
[ebuild   R    ]  net-misc/openssh-8.6_p1-r2::gentoo  USE="pam pie scp ssl -X -X509 (-audit) -bindist* (-debug) -hpn -kerberos -ldns -libedit -livecd -sctp (-security-key) (-selinux) -static -test -xmss" 0 KiB
[ebuild   R    ] sys-process/procps-3.3.17-r1:0/8::gentoo  USE="elogind* kill ncurses nls (split-usr) (unicode) -modern-top (-selinux) -static-libs -systemd -test" 0 KiB
[nomerge       ]  sys-auth/elogind-246.10-r1::gentoo  USE="acl pam policykit (-audit) -debug -doc (-selinux)"
[nomerge       ]   sys-auth/polkit-0.119-r2::gentoo  USE="elogind introspection nls pam -examples -gtk (-kde) (-selinux) -systemd -test"
[ebuild   R    ]    sys-auth/pambase-20210201.1::gentoo  USE="elogind* nullok passwdqc sha512 -caps -debug -gnome-keyring -homed -minimal -mktemp -pam_krb5 -pam_ssh -pwhistory -pwquality -securetty (-selinux) -systemd" 0 KiB
[ebuild  N     ]   sys-auth/polkit-0.119-r2::gentoo  USE="elogind introspection nls pam -examples -gtk (-kde) (-selinux) -systemd -test" 0 KiB
[ebuild  N     ]   sys-apps/dbus-1.12.20-r3::gentoo  USE="elogind -X -debug -doc (-selinux) -static-libs -systemd -test -user-session" 0 KiB
[ebuild  N     ]    sys-auth/elogind-246.10-r1::gentoo  USE="acl pam policykit (-audit) -debug -doc (-selinux)" 0 KiB
[nomerge       ] sys-apps/util-linux-2.36.2-r1::gentoo  USE="cramfs logger ncurses nls pam python* readline (split-usr) suid udev* (unicode) (-audit) -build -caps -cryptsetup -fdformat -hardlink -kill -magic (-selinux) -slang -static-libs -su -systemd -test -tty-helpers" PYTHON_TARGETS="python3_9 -python3_8"
[nomerge       ]  virtual/libudev-232-r4:0/1::gentoo  USE="-static-libs -systemd"
[ebuild     U  ]   sys-fs/udev-249-r2::gentoo [248-r1::gentoo] USE="acl kmod (split-usr) (-selinux) -static-libs -test%" 0 KiB
[ebuild   R    ]    sys-apps/util-linux-2.36.2-r1::gentoo  USE="cramfs logger ncurses nls pam python* readline (split-usr) suid udev* (unicode) (-audit) -build -caps -cryptsetup -fdformat -hardlink -kill -magic (-selinux) -slang -static-libs -su -systemd -test -tty-helpers" PYTHON_TARGETS="python3_9 -python3_8" 0 KiB
[ebuild  N     ]     virtual/libudev-232-r4:0/1::gentoo  USE="-static-libs -systemd" 0 KiB
[nomerge       ] virtual/service-manager-1::gentoo
[ebuild     U  ]  sys-apps/openrc-0.43.5::gentoo [0.42.1-r1::gentoo] USE="ncurses netifrc pam unicode (-audit) -bash -debug -newnet (-prefix) (-selinux) -sysv-utils (-split-usr%*) (-static-libs%)" 0 KiB
[nomerge       ] sys-auth/polkit-0.119-r2::gentoo  USE="elogind introspection nls pam -examples -gtk (-kde) (-selinux) -systemd -test"
[ebuild  N     ]  dev-libs/gobject-introspection-1.68.0::gentoo  USE="-doctool -gtk-doc -test" PYTHON_SINGLE_TARGET="python3_9 (-python3_10) -python3_8" 0 KiB
[ebuild  N     ]   dev-util/desktop-file-utils-0.26-r1::gentoo  USE="-emacs" 0 KiB
[ebuild   R    ] net-misc/iputils-20210202::gentoo  USE="arping filecaps* ipv6 nls ssl -caps -clockdiff -doc -gcrypt -idn -nettle -rarpd -rdisc -static -tftpd -tracepath -traceroute6" 0 KiB
[ebuild  NS    ] sys-devel/binutils-2.36.1-r2:2.36::gentoo [2.35.2:2.35::gentoo] USE="gold nls plugins (-cet) -default-gold -doc -multitarget -static-libs -test -vanilla" 0 KiB
[nomerge       ] sys-process/cronie-1.5.7::gentoo  USE="anacron inotify pam (-selinux)"
[ebuild     U  ]  sys-libs/pam-1.5.1-r1::gentoo [1.5.1::gentoo] USE="filecaps* (split-usr) (-audit) -berkdb -debug -nis (-selinux)" 0 KiB
[nomerge       ] sys-auth/polkit-0.119-r2::gentoo  USE="elogind introspection nls pam -examples -gtk (-kde) (-selinux) -systemd -test"
[ebuild  N     ]  dev-lang/spidermonkey-78.12.0:78::gentoo  USE="jit -clang -debug -lto -test" CPU_FLAGS_ARM="-neon" 0 KiB
[ebuild   R    ] sys-apps/kmod-29::gentoo  USE="lzma python* (tools) zlib -debug -doc -pkcs7 -static-libs -zstd" PYTHON_TARGETS="python3_9 -python3_8" 0 KiB
[nomerge       ] sys-process/htop-3.0.5-r1::gentoo  USE="unicode -debug -hwloc (-lm-sensors) -openvz -vserver"
[nomerge       ]  sys-devel/autoconf-2.69-r5:2.69::gentoo  USE="-emacs"
[nomerge       ]   sys-devel/m4-1.4.19::gentoo  USE="nls -examples"
[nomerge       ]    sys-devel/gettext-0.21-r1::gentoo  USE="acl cxx ncurses nls openmp -cvs -doc -emacs -git (-java) -static-libs"
[ebuild     U  ]     dev-libs/libxml2-2.9.12-r5:2::gentoo [2.9.12-r3:2::gentoo] USE="ipv6 python readline -debug -examples -icu -lzma -static-libs -test -verify-sig" PYTHON_TARGETS="python3_9 -python3_8" 0 KiB
[ebuild   R    ] sys-apps/file-5.40-r3::gentoo  USE="bzip2 python* seccomp zlib -lzma -static-libs" PYTHON_TARGETS="python3_9 (-python3_10) -python3_8" 0 KiB
[nomerge       ] app-portage/gentoolkit-0.5.1-r1::gentoo  USE="-test" PYTHON_TARGETS="python3_9 (-pypy3) (-python3_10) -python3_8"
[nomerge       ]  sys-apps/portage-3.0.20-r6::gentoo  USE="(ipc) native-extensions rsync-verify xattr -apidoc -build -doc -gentoo-dev (-selinux) -test" PYTHON_TARGETS="python3_9 (-pypy3) (-python3_10) -python3_8"
[ebuild   R    ]   app-misc/pax-utils-1.3.2::gentoo  USE="python* seccomp -caps -debug" PYTHON_SINGLE_TARGET="python3_9 (-python3_10) -python3_8" 0 KiB
[ebuild  N     ]    dev-python/pyelftools-0.27::gentoo  USE="-examples" PYTHON_TARGETS="python3_9 (-python3_10) -python3_8" 0 KiB
[nomerge       ] sys-apps/file-5.40-r3::gentoo  USE="bzip2 python* seccomp zlib -lzma -static-libs" PYTHON_TARGETS="python3_9 (-python3_10) -python3_8"
[ebuild   R    ]  sys-libs/libseccomp-2.5.1::gentoo  USE="python* static-libs*" PYTHON_TARGETS="python3_9 -python3_8" 0 KiB
[ebuild  N     ]   dev-python/cython-0.29.23::gentoo  USE="-doc -emacs -test" PYTHON_TARGETS="python3_9 (-pypy3) (-python3_10) -python3_8" 0 KiB
[nomerge       ] sys-apps/shadow-4.8.1-r4::gentoo  USE="acl nls pam (split-usr) su xattr (-audit) -bcrypt -cracklib (-selinux) -skey"
[nomerge       ]  sys-auth/pambase-20210201.1::gentoo  USE="elogind* nullok passwdqc sha512 -caps -debug -gnome-keyring -homed -minimal -mktemp -pam_krb5 -pam_ssh -pwhistory -pwquality -securetty (-selinux) -systemd"
[nomerge       ]   sys-auth/elogind-246.10-r1::gentoo  USE="acl pam policykit (-audit) -debug -doc (-selinux)"
[ebuild     U  ]    dev-util/meson-0.58.2::gentoo [0.58.1::gentoo] USE="(-test)" PYTHON_TARGETS="python3_9 (-python3_10) -python3_8" 0 KiB
[nomerge       ] sys-process/htop-3.0.5-r1::gentoo  USE="unicode -debug -hwloc (-lm-sensors) -openvz -vserver"
[nomerge       ]  sys-devel/libtool-2.4.6-r6:2::gentoo  USE="-vanilla"
[nomerge       ]   sys-devel/autoconf-2.69-r5:2.69::gentoo  USE="-emacs"
[nomerge       ]    dev-lang/perl-5.34.0:0/5.34::gentoo  USE="gdbm -berkdb -debug -doc -ithreads -minimal"
[nomerge       ]     app-admin/perl-cleaner-2.30::gentoo
[nomerge       ]      app-portage/portage-utils-0.92::gentoo  USE="nls openmp qmanifest qtegrity -static"
[ebuild   R    ]       app-crypt/gpgme-1.15.1:1/11::gentoo  USE="cxx python* -common-lisp -qt5 -static-libs" PYTHON_TARGETS="python3_9 (-python3_10) -python3_8" 0 KiB
[nomerge       ] dev-lang/spidermonkey-78.12.0:78::gentoo  USE="jit -clang -debug -lto -test" CPU_FLAGS_ARM="-neon"
[ebuild  N     ]  virtual/rust-1.52.1::gentoo  USE="-rustfmt" 0 KiB
[ebuild  N     ]   dev-lang/rust-1.52.1:stable/1.52::gentoo  USE="-clippy -debug -doc (-miri) (-nightly) (-parallel-compiler) -rls -rustfmt (-system-bootstrap) (-system-llvm) -test -verify-sig -wasm" LLVM_TARGETS="(ARM) -AArch64 -AMDGPU -AVR -BPF -Hexagon -Lanai -MSP430 -Mips -NVPTX -PowerPC -RISCV -Sparc -SystemZ -WebAssembly -X86 -XCore" 0 KiB
[ebuild  N     ]  sys-devel/llvm-12.0.0:12::gentoo  USE="libffi ncurses -debug -doc -exegesis -gold -libedit -test -xar -xml -z3" LLVM_TARGETS="(ARM) BPF -AArch64 -AMDGPU -ARC -AVR (-CSKY) -Hexagon -Lanai -MSP430 -Mips -NVPTX -PowerPC -RISCV -Sparc -SystemZ -VE -WebAssembly -X86 -XCore" 0 KiB

Total: 28 packages (5 upgrades, 12 new, 1 in new slot, 10 reinstalls), Size of downloads: 0 KiB


I'm using this profile, although I haven't reconfigured the compiler for it. I'm using the raspberry pi arm stage 3.

Code:
default/linux/arm/17.0/armv7a (dev) *

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RayDude
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PostPosted: Thu Aug 26, 2021 4:23 pm    Post subject: Reply with quote

You know what?

This totally worked:

Code:
Frankie_Baby ~/ # emerge --nodeps -1q elogind
>>> Verifying ebuild manifests
>>> Emerging (1 of 1) sys-auth/elogind-246.10-r1::gentoo
>>> Installing (1 of 1) sys-auth/elogind-246.10-r1::gentoo

 * Messages for package sys-auth/elogind-246.10-r1:

 * Unable to find kernel sources at /usr/src/linux
 * Unable to calculate Linux Kernel version for build, attempting to use running version
 * elogind is currently not started from any runlevel.
 * You may add it to the boot runlevel by:
 * # rc-update add elogind boot
 *
 * Alternatively, you can leave elogind out of any
 * runlevel. It will then be started automatically
 * when the first service calls it via dbus, or
 * the first user logs into the system.


But it doesn't run... At least I can't login from the console.

Code:
* ERROR: elogind needs service(s) dbus


Let me one shot no deps that for the heck of it.
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cboldt
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PostPosted: Thu Aug 26, 2021 4:30 pm    Post subject: Reply with quote

Code:
USE="nptlonly nsplugin savedconfig \
-acl -dbus -elogind -exceptions -gnome -introspection -ipv6 -json -ldap -libav -pam -systemd -tcpd -vala"


Simplifies some things, complicates others.
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dmpogo
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PostPosted: Thu Aug 26, 2021 4:50 pm    Post subject: Reply with quote

Sorry, but it is a bit of mess of a question, you have piled many issues in one.

What are you trying to achieve, console only system without graphics environment and without elogind ? The setting USE='-elogind' should do the trick. You should also get rid of polkit (the only package which unconditionally requires elogind on my system, at least), which should be possible if you do not use udisks, and upower
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PostPosted: Thu Aug 26, 2021 4:58 pm    Post subject: Reply with quote

RayDude,

What does "no console" mean?
You can't log in, the screen is blank, the keyboard doesn't work?
Note of the above?
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PostPosted: Thu Aug 26, 2021 5:21 pm    Post subject: Reply with quote

Thanks Neddy, dmpogo, cboldt.

This is an embedded system: no keyboard, no monitor, no USB, just a serial port and two ethernet ports.

NeddySeagoon wrote:
RayDude,

What does "no console" mean?
You can't log in, the screen is blank, the keyboard doesn't work?
Note of the above?


There is no login prompt on the serial console. I can get in but only through ssh.

Isn't that what elogind is for? I mean isn't that what consolekit was for? I guess I'm just confused.

Here's an update: elogind is running because I installed dbus, but I still don't get a login prompt on the serial port and it is not displaying console messages.

Thanks.
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PostPosted: Thu Aug 26, 2021 5:41 pm    Post subject: Reply with quote

RayDude,

What do you have in /etc/inittab ?

The default is
Code:
 # SERIAL CONSOLES
#s0:12345:respawn:/sbin/agetty -L 115200 ttyS0 vt100
#s1:12345:respawn:/sbin/agetty -L 115200 ttyS1 vt100
so there are no serial consoles enabled.

If this is wrong, the kernel messages appear but the login prompt never does.

The ttyS0 means put the console onto /dev/ttyS0.
That may not be right for your SoC. e.g. The Raspberry Pi needs
Code:
# SERIAL CONSOLES
s0:12345:respawn:/sbin/agetty -L 115200 ttyAMA0 vt340


elogind is not required.
Kernel support for your serial port hardware and the serial console option in the kernel are essential.

Its really good to use the same serial port settings here as you pass on the kernel command line, or the kernel will change but whatever is listening to the serial port won't.
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cboldt
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PostPosted: Thu Aug 26, 2021 5:53 pm    Post subject: Reply with quote

Not much needed to get a console, certainly not consolekit, polkit, dbus, or elogind.

Neddy has you on the right track. I'm surprised default /etc/inittab has all the getty's commented out!

Curious what you use to monitor with. I've used displayless laptops as server, and just ssh in with another machine providing keyboard and console - never crossed my mind to use serial port, USB, whatever.
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Hu
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PostPosted: Thu Aug 26, 2021 6:01 pm    Post subject: Reply with quote

RayDude wrote:
Isn't that what elogind is for? I mean isn't that what consolekit was for? I guess I'm just confused.
No. elogind, like systemd-logind, is meant to be aware of users logging in and do certain secondary services on their behalf, such as mangling device ACLs. It has nothing to do with getting you a login shell.
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RayDude
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PostPosted: Thu Aug 26, 2021 6:24 pm    Post subject: Reply with quote

Yep!

You guys are right. I didn't understand how it worked.

My serial port is simply /dev/ttyS0, I think and it looks enabled in inittab, but I think the baud rate is wrong. I'll figure out how to configure inittab now.

Imagine using linux all these years and not needing to learn this before now.

THANKS MUCH!
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PostPosted: Thu Aug 26, 2021 8:07 pm    Post subject: Reply with quote

RayDude,

ssh in, install minicom and do a loopback test on the serial port.

Turn off all handshaking, link the Tx and Rx pins together anh see that anything sent to the serial port comes back.
That proves most of the kernel setup. It will work at any baud rate, unless you can configure your arm system to do split baud rates.
Split baud rates were never a thing on the PC due to a design error by IBM.

To get kernel messages on the serial port, yon need to pass something like
Code:
console=ttyS0,115200n8
on the kernel command line.
That's the serial port and serial port settings.
The settings are optional. 9600n8 is the default. You need the same settings in inittab, or the serial port configuration will change when inittab is run.
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RayDude
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PostPosted: Thu Aug 26, 2021 9:13 pm    Post subject: Reply with quote

I haven't had a chance to reboot and prove the serial console is working, but my other dependency issues went away as soon as I removed elogind from USE.

Thanks again for your help.
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PostPosted: Fri Aug 27, 2021 3:26 am    Post subject: Reply with quote

I enabled the correct device and it's working.

Thanks again for your help!
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