rancheros-autoinstall.yml

#cloud-config
# Auto install RancherOS on the first disk (we're assuming there is nothing you want to keep), and use the existing kernel params.
write_files:
- path: /opt/install
  permissions: "0755"
  content: |
    #!/bin/sh
    set -ex
    echo "running" > /var/log/ros-install.log
    system-docker exec console ros install -i rancher/os:v1.0.2 -d $(partprobe -s | head -n1 | cut -d : -f0) --append "$(cat /proc/cmdline)" -f --debug >> /var/log/install.log 2>&1
    echo "done" >> /var/log/ros-install.log
ssh_authorized_keys:
  - ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC85w9stZyiLQp/DkVO6fqwiShYcj1ClKdtCqgHtf+PLpJkFReSFu8y21y+ev09gsSMRRrjF7yt0pUHV6zncQhVeqsZtgc5WbELY2DOYUGmRn/CCvPbXovoBrQjSorqlBmpuPwsStYLr92Xn+VVsMNSUIegHY22DphGbDKG85vrKB8HxUxGIDxFBds/uE8FhSy+xsoyT/jUZDK6pgq2HnGl6D81ViIlKecpOpWlW3B+fea99ADNyZNVvDzbHE5pcI3VRw8u59WmpWOUgT6qacNVACl8GqpBvQk8sw7O/X9DSZHCKafeD9G5k+GYbAUz92fKWrx/lOXfUXPS3+c8dRIF
rancher:
  services:
    ros-install:
      image: alpine
      entrypoint: /usr/bin/ros entrypoint
      command: /opt/install
      labels:
        io.rancher.os.scope: system
        io.rancher.os.after: console
      uts: host
      privileged: true
      volumes:
        - /var/log:/var/log
      volumes_from:
        - all-volumes

rancheros-packet.ipxe

#!ipxe
dhcp
set base-url https://releases.rancher.com/os/v1.0.2
kernel ${base-url}/vmlinuz printk.devkmsg=on rancher.state.dev=LABEL=RANCHER_STATE rancher.state.wait console=tty0 rancher.state.mdadm_scan console=ttyS1,115200n8 rancher.autologin=ttyS1 rancher.network.interfaces.eth*.dhcp=true rancher.cloud_init.datasources=[packet]
initrd ${base-url}/initrd
boot

with read problem:

   |   .________.'----'   | |\ \ (_| | | | | (__| | | |  __/ |    | \_/ /\__/ /
   |   |        |   |     \_| \_\__,_|_| |_|\___|_| |_|\___|_|     \___/\____/
   \___/        \___/     Linux 4.9.33-rancher

         RancherOS 437034c sven2 ttyS1
         bond0: 147.75.108.131 lo: 127.0.0.1
sven2 login: rancher (automatic login)

[rancher@sven2 ~]$ > INFO[0007] [16/16] [preload-user-images]: Started       
> INFO[0007] [3/4] Starting sync                          
> INFO[0007] Project [os]: Project started                
> INFO[0007] [4/4] Starting banner                        
> INFO[0007] RancherOS 437034c started                    

[rancher@sven2 ~]$ 
[root@rancher-dev rancher]# agetty --version
agetty from util-linux 2.28

and after buildroot update, 2.29 - but problem persists

ah :/, now to wonder why autologin causes stty -icrnl

[rancher@sven2 ~]$ read
�
[rancher@sven2 ~]$ diff before after 
--- before
+++ after
@@ -3,8 +3,8 @@
 eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;
 werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;
 -parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts
--ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr -icrnl ixon ixoff
--iuclc -ixany -imaxbel -iutf8
+-ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff
+-iuclc -ixany imaxbel -iutf8
 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0
-isig icanon -iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt
--echoctl echoke
+isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt
+echoctl echoke
[rancher@sven2 ~]$ stty
speed 115200 baud; line = 0;
intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>;
eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R;
werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0;
-brkint -icrnl ixoff -imaxbel
-iexten -echoctl
[rancher@sven2 ~]$ stty icrnl
[rancher@sven2 ~]$ read

[rancher@sven2 ~]$ 

mmm, i wonder if using agetty from util-linux 2.28 and login from busybox is the problem. - that won't be fun to debug.

and centos also has the issue.

reminder to self - agetty is more consistent between consoles, so either extract the getty&login calls to outside the console, or...