[Buildroot] [Bug 12811] New: bootstrap stuck and no login prompt

[Buildroot] [Bug 12811] New: bootstrap stuck and no login prompt

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12811

            Bug ID: 12811
           Summary: bootstrap stuck and no login prompt
           Product: buildroot
           Version: 2020.02.1
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P5
         Component: Other
          Assignee: unassigned at buildroot.uclibc.org
          Reporter: cristovao.cordeiro at sixsq.com
                CC: buildroot at uclibc.org
  Target Milestone: ---

Hi guys,

Setup: RPi 3 B+


with 2020.02.1, I've simply `make raspberrypi3_defconfig`, `make menuconfig` -
here I've just done some basic stuff like: use glibc, use systemd init,
increase the fs image size, and installed docker-cli, docker-engine and
open-ssh. Then `make`


Config: https://pastebin.com/q2qx4wNq


when booting my RPi 3B+, the last message on the splash screen is "IPv6:
ADDRCONF(NETDEV_UP): docker0: link is not read", and I cannot move from there. 

there's no login prompt
and if I try to SSH remotely, it asks for password...even though I've left it
default (should be none)


Any ideas?
Thanks in advance

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[Buildroot] [Bug 12811] bootstrap stuck and no login prompt

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12811

--- Comment #1 from Peter Seiderer <ps.report@gmx.net> ---
- you switched the init system to systemd, needs a change of the kernel
commandline (otherwise your get two gettys running on the serial console and
none on the HDMI console):

  diff -u cmdline.txt_orig cmdline.txt
  --- cmdline.txt_orig
  +++ cmdline.txt
  @@ -1 +1 @@
  -root=/dev/mmcblk0p2 rootwait console=tty1 console=ttyAMA0,115200
  +root=/dev/mmcblk0p2 rootwait console=ttyAMA0,115200 console=tty1

- the default /etc/ssh/sshd_config contains the following lines:

  #PermitRootLogin prohibit-password
  #PermitEmptyPasswords no

your have to change it too

  PermitRootLogin yes
  PermitEmptyPasswords yes

to enable ssh root access without a password (make sure your rpi is only
reachable via a private network)...

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[Buildroot] [Bug 12811] bootstrap stuck and no login prompt

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12811

--- Comment #2 from cjdc <cristovao.cordeiro@sixsq.com> ---
Thanks. I naively assumed such changed would be done automatically.

It worked for the cmdline.txt.

For the openssh however, I assume that is a change that can only be done with
post-scripts?

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[Buildroot] [Bug 12811] bootstrap stuck and no login prompt

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=12811

Peter Seiderer <ps.report@gmx.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #3 from Peter Seiderer <ps.report@gmx.net> ---
> Thanks. I naively assumed such changed would be done automatically.

No..., buildroot is not about automatically customizing every possible
selection of features..., just a starting point for your own project (see below
and [1] for customize support)...

> It worked for the cmdline.txt.

Good news...

> For the openssh however, I assume that is a change that can only be done with post-scripts?

Yes, one of the many possibilities to customize your project, see [1] for
alternatives...

Closing the bug (as it is not a bug, but a feature ;-)), feel free to turn to
the mailing list for further questions/support...

[1] https://buildroot.org/downloads/manual/manual.html#rootfs-custom

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