Bug#838480: Next revision, suggestion accounted

[Dmitry Bogatov]

[2018-11-16 18:55] Martin Pitt <mpitt at debian.org>
> Not sure what "getty-run" is, but indeed I don't get a TTY. But I don't even
> get that far. This is my current experience:
> 
>  * Standard vmdebootstrap install of sid.
>  * Install runit-init, "do as I say!", reboot (that works)
>  * Boot does that:
> [...]
> And from here on, nothing. I can't log in through sshd, and there's no VT
> either.

Okay, let us debug.

 $ sudo vmdebootstrap --image debian-838480.img --size 15G --distribution sid

 Warning: The image may fail to boot with ext4 and extlinux unless
 vmdebootstrap is running on Jessie. Use grub or ext3 and see the docs.

 $ sudo chown $USER:$USER debian-838480.img
 $ /usr/share/vmdebootstrap/qemu-wrapper.sh debian-838480.img amd64
   VNC server running on ::1:5900
 ## Now I get on VM 'Booting from Hard Disk...', things do not move
 ## further.

I believe here I hit this warning. I do not have Jessie box. So let me
go another way. I will make fresh installation.

 $ qemu-img create -fqcow2 img/debian-838480.qcow2 15G
 Formatting 'debian-838480.qcow2', fmt=qcow2 size=16106127360
 cluster_size=65536 lazy_refco
 unts=off refcount_bits=16

 $ qemu-system-x86_64 -m256 -enable-kvm -hda img/debian-838480.qcow2 \
   -cdrom iso/debian-9.5.0-amd 64-netinst.iso
 ## The most basic installation. Guided partition, no seperate
 ## partitions for /home,/var/,/tmp
 ##
 ## Only "standard system utilities" are installed.
 ## Now on virtual machine.

 # -- enable sid --
 # apt-get update
 # apt-get dist-upgrade
 # apt-get install runit-init=2.1.2-18
 # reboot

`dbus' starts slowly, otherwise things are fine.

After some stracing, I discovered that dbus was trying to recvmsg(1)
from /run/dbus/system_bus_socket. Resource was not available, so dbus
tried to poll with 90 sec timeout. After purging `systemd', this issue
with dbus is gone. I think somewhere `dbus' makes wrong assumption,

  `systemd' is installed => `systemd' is init system

So far, I still insist on adding `runit-init' into Pre-Depends of
`init'. I works for me, it works for bug reporters of src:runit, and it
would be great for it to have better visibility.