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After installing the add-on Log-Analyzer my RN10200 started to have some issues as I was not able to see the shares via Samba anymore. I tried logging in via SSH to see what's wrong but also SSH stopped working. Since the web-admin panel is still working I tried to activate SMB and SSH in the panel, but it briefly turns green and then grey again. I also tried uninstalling the add-on, but now get a package manager error. I then tried to reinstall the OS using the boot-option, but this did not help either.
I removed the harddrives from the device and mounted them read-only to see what's wrong. There I found some permissions to be set incorrectly on the system partition:
/mnt/systemOld# ls -la total 124 drwxr-xr-x 26 root root 4096 May 19 21:03 . drwxr-xr-x 4 root root 4096 May 24 07:04 .. drwxr-xr-x 2 root root 4096 May 5 2015 apps drwxr-xr-x 2 root root 4096 May 19 19:51 bin drwxr-xr-x 2 root root 4096 Jun 17 2012 boot drwxrwxrwt 2 root root 4096 May 5 2015 data drwxr-xr-x 4 root root 4096 May 19 19:51 dev drwxr-xr-x 79 root root 4096 May 19 21:32 etc drwxr-xr-x 6 guest guest 4096 May 19 19:51 frontview drwxr-xr-x 2 root root 4096 Jun 17 2012 home lrwxrwxrwx 1 guest guest 5 Jul 18 2015 homes -> /home drwxr-xr-x 14 guest guest 4096 May 19 19:51 lib drwxrwxrwx 2 guest guest 16384 May 5 2015 lost+found drwxr-xr-x 2 root root 4096 Nov 18 2012 media drwxr-xr-x 3 root root 4096 Jun 17 2012 mnt drwxr-xr-x 9 root root 4096 Nov 26 10:59 opt drwxr-xr-x 2 root root 4096 Jun 17 2012 proc -rwxrwxrwx 1 guest guest 1024 May 5 2015 .rnd drwx------ 5 root root 4096 May 19 19:51 root drwxr-xr-x 3 guest guest 4096 May 19 17:52 rsyslog drwxr-xr-x 2 root root 4096 Aug 18 2015 run drwxr-xr-x 2 guest guest 4096 May 19 19:51 sbin drwxr-xr-x 2 root root 4096 Jun 10 2012 selinux drwxr-xr-x 2 guest guest 4096 Nov 18 2012 srv drwxr-xr-x 2 root root 4096 Feb 8 2013 sys drwxrwxrwt 7 guest guest 4096 May 19 21:32 tmp -rwxrwxrwx 1 guest guest 33 May 19 17:48 .update_fail drwxr-xr-x 10 root root 4096 Nov 26 10:59 usr drwxr-xr-x 18 root root 4096 May 19 19:51 var
instead of:
ls -la / total 120 drwxr-xr-x 26 root root 4096 May 23 07:40 . drwxr-xr-x 26 root root 4096 May 23 07:40 .. drwxrwxrwx 1 root root 116 May 23 20:45 apps drwxr-xr-x 2 root root 4096 May 23 07:39 bin drwxr-xr-x 2 root root 4096 Jun 17 2012 boot drwxr-xr-x 1 root root 250 May 22 10:36 data drwxr-xr-x 13 root root 3480 May 23 20:53 dev drwxr-xr-x 79 root root 4096 May 23 20:46 etc drwxr-xr-x 6 root root 4096 May 23 07:39 frontview drwxr-xr-x 1 admin admin 0 May 19 22:17 home drwxr-xr-x 14 root root 4096 May 23 07:39 lib drwx------ 2 root root 16384 May 19 22:17 lost+found drwxr-xr-x 2 root root 4096 May 19 22:49 md124 drwxr-xr-x 4 root root 80 May 23 20:53 media drwxr-xr-x 4 root root 4096 May 24 07:04 mnt drwxr-xr-x 9 root root 4096 May 13 16:48 opt dr-xr-xr-x 188 root root 0 Jan 1 1970 proc -rw------- 1 root root 1024 May 19 22:17 .rnd drwx------ 3 root root 4096 May 23 07:39 root drwxrwxr-x 26 root admin 820 May 23 20:53 run drwxr-xr-x 2 root root 4096 May 23 07:39 sbin drwxr-xr-x 2 root root 4096 Jun 10 2012 selinux drwxr-xr-x 2 root root 4096 Nov 18 2012 srv dr-xr-xr-x 11 root root 0 May 24 07:05 sys drwxrwxrwt 7 root root 4096 May 24 07:17 tmp -rw-r--r-- 1 root root 0 May 23 07:38 .update_success drwxr-xr-x 10 root root 4096 May 13 16:48 usr drwxr-xr-x 17 root root 4096 May 23 07:39 var
could this be cause of the problem? Any other ideas how I get the SSH and SMB service back working or get more diagnostic information?
I do have a backup of everything so a full factory reset would be an option. However, I would like to understand the problem and rather solve it using telnet as it seems to be quite a simple problem? Would it be enough to reset the permissions? What else could cause this behaviour?
You would have to go folder by folder and read all the folders it is complaining about and chown the permissions back to root instead of guest. It's tedius but eventually you can get it all started again.
How full is the OS partition? Another possibility could be filling that. It's 4GB so if you put stuff on there that shouldn't be there it can fill fast.
When I put back the original harddrives in the RN102 it updated the firmware to the most current one since I had this firmware installed on my testharddrive. This fixed the SMB service somehow.
However, SSH is still broken and the logs also suggest that it is caused by the wrong permissions:
May 27 21:54:28 Keksbox systemd[1]: Unit ssh.service entered failed state. May 27 21:54:28 Keksbox systemd[1]: ssh.service holdoff time over, scheduling restart. May 27 21:54:28 Keksbox sshd[4153]: /var/run/sshd must be owned by root and not group or world-writable.
Looks like something is trying to change the ownership of everything on the system. Not sure what.
You last factory reset on 6.1.4. Might not be a bad idea to backup your data, do a factory default (wipes all data, settings, everything) and restore your data from backup.
You would have to go folder by folder and read all the folders it is complaining about and chown the permissions back to root instead of guest. It's tedius but eventually you can get it all started again.
After rebooting the readynas from the telnet service mode you have to be quick to login via SSH, because unfortunately the permissions are getting reset to guest after a few minutes. The reason is that loganalyzerr6 is still trying to install itself and during that install it changes all permissions. I tried to purge it using apt-get -y purge loganalyzerr6, but this did not work because dpkg was already running in the background and was stuck in the install loganalyzerr6. However, it worked to kill dpgk and then run dpkg --purge loganalyzerr6. Then I reset the permissions again and now it works.
