Hi,
dbus on centos 7 lxc won't work.
So I'm unable to start or query status units with systemd, for example:
systemctl status
Failed to get D-Bus connection: No such file or directory
I have no issues with centos 8 container (debian 10 ones work fine too)
This is the output of ps aux on centos 7:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 42712 3860 ? Ss 20:11 0:00
/lib/systemd/systemd systemd.unified_cgroup_hierarchy=1
root 2 0.0 0.0 11840 3052 ? Ss 20:12 0:00 /bin/bash
root 28 0.0 0.0 51772 3548 ? R+ 20:19 0:00 ps aux
On Centos 8 instead:
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 1 0.0 0.0 241980 5320 ? Ss Oct06 0:01
/lib/systemd/systemd systemd.unified_cgroup_hierarchy=1
root 17 0.0 0.0 93944 5552 ? Ss Oct06 0:00
/usr/lib/systemd/systemd-journald
root 22 0.0 0.0 97164 2892 ? Ss Oct06 0:00
/usr/lib/systemd/systemd-udevd
root 34 0.0 0.0 85920 5252 ? Ss Oct06 0:00
/usr/lib/systemd/systemd-logind
dbus 35 0.0 0.0 54108 2312 ? Ss Oct06 0:00
/usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile
--systemd-activat
ion --syslog-only
root 37 0.0 0.0 368376 7076 ? Ssl Oct06 0:03
/usr/sbin/NetworkManager --no-daemon
root 42 0.0 0.0 78536 4124 ? Ss Oct06 0:00
/usr/sbin/sshd -D
-oCiphers=aes256-gcm@xxxxxxxxxxx,chacha20-poly1305@xxxxxxxxxxx,aes256
-ctr,aes256-cbc,aes128-gcm@xxxxxxxxxxx,aes128-ctr,aes128-cbc
-oMACs=hmac-sha2-256-etm@xxxxxxxxxxx,hmac-sha1-etm@xxxxxxxxxxx,umac-128-etm@xxxxxxxxxxx,hmac-
sha2-512-etm@xxxxxxxxxxx,hmac-sha2-256,hmac-sha1,umac-128@xxxxxxxxxxx,hmac-sha2-512
-oGSSAPIKexAlgorithms=gss-gex-sha1-,gss-group14-sha1- -oKexAlgorithms=
curve25519-sha256,curve25519-sha256@xxxxxxxxxx,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellma
n-group14-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1
-oHostKeyAlgor
ithms=rsa-sha2-256,rsa-sha2-256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-
cert-v01@xxxxxxxxxxx,rsa-sha2-512,rsa-sha2-512-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp521,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,ssh-ed25519,ssh-ed25519-c
ert-v01@xxxxxxxxxxx,ssh-rsa,ssh-rsa-cert-v01@xxxxxxxxxxx
-oPubkeyAcceptedKeyTypes=rsa-sha2-256,rsa-sha2-256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp256,ecdsa
-sha2-nistp256-cert-v01@xxxxxxxxxxx,ecdsa-sha2-nistp384,ecdsa-sha2-nistp384-cert-v01@xxxxxxxxxxx,rsa-sha2-512,rsa-sha2-512-cert-v01@xxxxxxxxxxx,ecdsa-sha2
-nistp521,ecdsa-sha2-nistp521-cert-v01@xxxxxxxxxxx,ssh-ed25519,ssh-ed25519-cert-v01@xxxxxxxxxxx,ssh-rsa,ssh-rsa-cert-v01@xxxxxxxxxxx
-oCASignatureAlgorith
ms=rsa-sha2-256,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,rsa-sha2-512,ecdsa-sha2-nistp521,ssh-ed25519,ssh-rsa
root 45 0.0 0.0 6520 660 pts/3 Ss+ Oct06 0:00
/sbin/agetty -o -p -- \u --noclear --keep-baud pts/3 115200,38400,9600
vt220
root 46 0.0 0.0 6520 724 pts/2 Ss+ Oct06 0:00
/sbin/agetty -o -p -- \u --noclear --keep-baud pts/2 115200,38400,9600
vt220
root 47 0.0 0.0 22868 1848 ? Ss Oct06 0:00
/usr/sbin/crond -n
root 48 0.0 0.0 6520 664 console Ss+ Oct06 0:00
/sbin/agetty -o -p -- \u --noclear --keep-baud console
115200,38400,9600 linux
root 50 0.0 0.0 6520 728 pts/1 Ss+ Oct06 0:00
/sbin/agetty -o -p -- \u --noclear --keep-baud pts/1 115200,38400,9600
vt220
root 61 0.0 0.0 283500 2176 ? Ssl Oct06 0:07
/usr/sbin/rsyslogd -n
root 442 0.0 0.0 6520 1640 pts/0 Ss+ 19:47 0:00
/sbin/agetty -o -p -- \u --noclear --keep-baud pts/0 115200,38400,9600
vt220
root 461 0.0 0.0 12020 3340 ? Ss 20:12 0:00 /bin/bash
root 480 0.0 0.0 44600 3368 ? R+ 20:22 0:00 ps auxwww
Is there a Centos Bug? Or I missing something?
The host is Fedora 32, if you need more information, ask me for.
Thanks in advance!
--
--
Sergio Belkin
LPIC-2 Certified - http://www.lpi.org
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