I am trying to re-flash a tx2 using a host pc which run Ubuntu 16.04 and Jetpack 3.2.1. Both devices are connected to a switch which is connected to the internet.
The actual flashing works, however it keeps getting stuck at the start of the post installation.
The xTerm window gets stuck on:
Waiting 30 seconds to make sure target is fully up DEBUG: echo GetValueToInfoBroker: key = Install_Dir, value = /media/paul/DATA/jetpack_install >> /tmp/jetpack_debug.log DEBUG: mkdir -p /home/paul/.ssh DEBUG: ssh-keygen -R 10.42.0.45 Host 10.42.0.45 not found in /home/paul/.ssh/known_hosts DEBUG: ssh-keyscan 10.42.0.45>>/home/paul/.ssh/known_hosts # 10.42.0.45:22 SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu1 # 10.42.0.45:22 SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu1 # 10.42.0.45:22 SSH-2.0-OpenSSH_7.2p2 Ubuntu-4ubuntu1 DEBUG: echo /home/paul /home/paul DEBUG: ssh-add /home/paul/.ssh/id_rsa 0<&- Identity added: /home/paul/.ssh/id_rsa (/home/paul/.ssh/id_rsa) scp -F /dev/null -o PubkeyAuthentication=no -o ConnectTimeout=30 -o StrictHostKeyChecking=no /home/paul/.ssh/id_rsa.pub firstname.lastname@example.org:/home/nvidia/tmp.pub .0.45' id_rsa.pub 100% 392 0.4KB/s 00:00 nvidia@tegra-ubuntu:~$ b /home/nvidia/.ssh/authorized_keys nvidia@tegra-ubuntu:~$ exit logout
When I manually start a ssh session I had to login using the password. When I inspected the ssh auth failures in /var/log/auth.log, I see:
Sep 25 09:18:52 tegra-ubuntu sshd: Authentication refused: bad ownership or modes for directory /home/nvidia Sep 25 09:18:52 tegra-ubuntu sshd: Authentication refused: bad ownership or modes for directory /home/nvidia Sep 25 09:18:55 tegra-ubuntu sshd: Accepted password for nvidia from 10.42.0.1 port 57270 ssh2 Sep 25 09:18:55 tegra-ubuntu sshd: pam_unix(sshd:session): session opened for user nvidia by (uid=0) Sep 25 09:18:55 tegra-ubuntu systemd-logind: New session 3 of user nvidia. Sep 25 09:18:55 tegra-ubuntu systemd: pam_unix(systemd-user:session): session opened for user nvidia by (uid=0) Sep 25 09:18:55 tegra-ubuntu sshd: lastlog_openseek: Couldn't stat /var/log/lastlog: No such file or directory Sep 25 09:18:55 tegra-ubuntu sshd: lastlog_openseek: Couldn't stat /var/log/lastlog: No such file or directory
Thereto I inspected the user permissions using ls -la, resulting in:
/home/nvidia: drwxrwxrwx 4 1002 1003 4096 Sep 25 10:21 /home/nvidia/.ssh: drwxrwxr-x 2 nvidia nvidia 4096 Sep 25 09:17 /home/nvidia/.ssh/authorized_keys: -rw-r--r-- 1 nvidia nvidia 392 Sep 25 09:17
I’ve read several websites which claim that user home directories should not be writable by others, for example see: https://superuser.com/questions/215504/permissions-on-private-key-in-ssh-folder
When I manually tried to set the user home directory’s permissions using:
sudo chmod go-w /home/nvidia
It strangely resulted in:
sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit set
It seems to me that the user permissions of this clean flash are corrupted.
Are these user permissions indeed the problem and how would I resolve it?
Thanks in advance!