Arch Linux

chrisd

Member

Registered: 2016-07-02

Posts: 21

Booting problems

Dear All,

I seem to be experiencing a lot of trouble booting lately. Often I have to boot several times before it works.
When it does not work I see the starting of all of the system services failing in the text startup screen. I do
not get a login prompt in that case. I looked at the output of journalctl. What I see there is that it cannot
find some files that should be there. Among others it cannot find /usr/bin/mandb, /usr/bin/dockerd,
/sbin/swapoff and so on. Maybe it failed to mount /? I also tried looking to the output of dmesg but do not
see anything that looks to me like it is related to this.

Any ideas?
Many thanks!
Chris

Last edited by chrisd (2020-05-13 07:13:17)

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,381

Re: Booting problems

Post that journal you are looking at: https://wiki.archlinux.org/index.php/Li … in_clients

To get some usual culprits out of the way: Ensure you only have one network management daemon enabled (especially important if you happen to have multiple instances of dhcpcd), double check your fstab and boot loader config, ensure you use persistent identifiers

chrisd

Member

Registered: 2016-07-02

Posts: 21

Re: Booting problems

Hello V1del,

Thanks for trying to help me. Also note that the system has been working
correctly for about two years and only recently started to have boot problems.

I posted the output of journalctl: http://ix.io/2lRr
It contains two failed boots and a successful one.

I think I have one network management daemon. In systemctl status I find

            ├─system-dhcpcd.slice
             │ └─dhcpcd@enp1s2.service
             │   ├─432 dhcpcd: enp1s2 [ip4] [ip6]
             │   ├─433 dhcpcd: [privileged actioneer]
             │   ├─434 dhcpcd: [network proxy]
             │   ├─479 dhcpcd: [BPF ARP] enp1s2
             │   └─492 dhcpcd: [network proxy] 200.123.33.69
             ├─dhcpcd.service
             │ ├─427 dhcpcd: [master] [ip4] [ip6]
             │ ├─428 dhcpcd: [privileged actioneer]
             │ ├─429 dhcpcd: [network proxy]
             │ ├─481 dhcpcd: [BPF ARP] enp1s2
             │ └─483 dhcpcd: [BPF ARP] eno1

The other things that are listed as network manager in
https://wiki.archlinux.org/index.php/Ne … k_managers
I do not have running as services. I do have the commands netctl an networkctl
available, though.

/etc/fstab talks about partitions referring to their UUID. Also /boot/grub/grub.cfg
contains the UUID of the root partition several times.

All the best,
Chris

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,381

Re: Booting problems

You do have two concurrent dhcpcd services: dhcpcd@enp1s2.service and dhcpcd.service are not the same thing and for distinctly different purposes and they will conflict with each other, stop one of them.

chrisd

Member

Registered: 2016-07-02

Posts: 21

Re: Booting problems

Ow, okay. I now stopped one of them and only have dhcpcd.service running now. I will keep
an eye on it.

Thanks,
Chris