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System volume root's usage is xx%. This condition should not occur under normal conditions. Contact
ReadyNAS 104, latest firmware (6.9.5), 4,17TB free of 5,44TB, default antivirus, NO installed Applications, enabled sevices: SMB, NFS, FTP, ReadyDLNA, Rsync, UPnP, HTTP, HTTPS, Antivirus.
Used for ...
Hi,
I had exactly the same problem on my RN102. Since March the 5th the antivirus didn't update any more. On March the 17th I received the error message "System volume root's usage is 84%".
After 4 hours of investigation and research I think, I found out the problem. According to the information about OS 6.10 the newest version of the antivirus "ClamAV" is too large for the RN100-series.
I connected to the NAS via SSH and tried to update the antivirus manually by using "freshclam". The download of the latest databases worked fine, but the update of the antivirus ended in an endless loop and the root usage increased to 94%. After some research I found out, that the antivirus makes for each update a temporary directory located at /var/lib/clamav beginning with "clamav-..." and ending with ".tmp". Each of the directories has about 133MB. Each time the antivirus updates, the downloaded data are stored in such a directory, but if the update fails, the directory is not removed! So after about 10 days the root-volume is filled up and the system crashes.
My solution (usage on your own risk): remove the temporary directories mentioned above in /var/lib/clamav (BE CAREFUL - wrong deletion can destroy your system!). After this deactivate the anti-virus (else the next update will also fail and the filling up starts again). Restart the system to be sure, that all tasks are ended. On my NAS this worked.
Thanks for letting know, asimb.
Hi asimb, thank you very much for your valuable informations. But how do I get into root? I can only see the directories I created myself. I only have access through ReadyNAS Admin Page (via local www of NAS).
Thanks
First of all you have to enable SSH on your NAS admin-page (description how to do see https://kb.netgear.com/30068/ReadyNAS-OS-6-SSH-access-support-and-configuration-guides "Enabling SSH access for root using password authentication"). Then you have to start SSH on your windows computer using "ssh root@<ip>.<ip>.<ip>.<ip>" (ip means the ip-adress of your NAS). The password is your admin-password.
then you have to type "cd /var/lib/clamav" and then "ls -la". Then you should see some entrys beginning with "clamav-..." and ending with ".tmp". Please check this.
Hi, today i ran into the same issue and solved it with your described steps.
- Enable ssh service and the ssh login permission via accounts > user
- Login e.g. Putty and switch to root via: su -
- Check the size of the root-fs via: du -hsx /* | sort -rh | head -10
(you'll get the following output)
root@STORAGE:~#
du: cannot access '/proc/17259/task/17259/fd/3': No such file or directory
du: cannot access '/proc/17259/task/17259/fdinfo/3': No such file or directory
du: cannot access '/proc/17259/fd/3': No such file or directory
du: cannot access '/proc/17259/fdinfo/3': No such file or directory
3.1G /var <<<<<<<<<<<
185M /usr
30M /frontview
28M /lib
10M /sbin
9.1M /etc
6.1M /opt
6.0M /bin
1.5M /apps
396K /run- change directory to /var/lib/clamav
- stop the following clamav services via: systemctl stop ...
-rw-r--r-- 1 root root 565 Oct 9 21:53 clamav-daemon.service
-rw-r--r-- 1 root root 204 Oct 9 21:53 clamav-freshclam.service
-rw-r--r-- 1 root root 156 Oct 9 21:53 clamav-freshclam.timer
-rw-r--r-- 1 root root 499 Oct 31 05:17 clamav-init.service- delete the temp-folders and (maybe the *.cld-files) via : rm- rf
- disable the clamd-services if needed
Hi,
attached you can find a screenshot showing, what I did to "repair" my NAS
Thank you for the solution, I had the exact problem with my root directory 85% full, it took me forever to figure out how to get into the system via putty, the password was "password" and not my password which was weird, also thanks for the screen shot, could not have done it without - very apreciative people are willing to spend the time to help.
Thanks again,
Greg
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