Forum Discussion

Tutor

Oct 08, 2015

Solved

ReadyNas 104 6.2.5 -> 6.4.0 Checksum error

I am trying to update my ReadyNas 104 from 6.2.5 to 6.4.0 both through the pop-up windows and also through using the manual update method. The download completetes ok, but during the reboot I can see...

Booting

Installation & Upgrade

AlexPe
Oct 16, 2015
Hi Everyone,

So the issue with the Checksum error is from the BusyBox Md5sum utility. It has a bug that we are still not sure how it is occurring, we are working hard to reproduce it. We are trying to figure out why this bug is affecting some boxes and not affecting others. So there is still a lot of work to be done.

For this issue, you have some options for resolution,

1. You can retry USB boot and see if this fixes the problem, preliminary reports show that this does not fix the issue

(USB Boot Instructions)

2. I have a Debian package that you can install on your ReadyNAS OS6 ARM machine to update the device to 6.4.0 upon reboot.

(ReadyNAS OS 6: RN100/RN2120 cannot update due to invalid checksum)

3. Create a ticket with support and have Netgear L3 group manually upgrade your device.

The Debian package will work so likely there will be no need for item three,

Thanks again for your patience and help diagnosing this issue.

Alex

AlexPe

NETGEAR Expert

Oct 09, 2015

Hi Alex,

I'm going to PM with you instructions.

I see the mismatch, I do not see the log data from this time because of log trunction.

Alex

anserk

Aspirant

Oct 14, 2015

What was the fix for this? Upgrade from 6.2.5 to 6.4.0 also fails for me. In the initrd.log file I see:

Update image checksum mismatch (7d47463d9c9014d7dc3a1cd8b88d33a7/ef94c251d3c39b3da7d2b13a014adf08)!

I'm not sure where it gets these checksums as the downloaded .img file has neither of them. Also, I tried updating several times, and the second checksum in the log is always different (the first one stays intact).

Update:

I looked through the logs, and it appears the OS gets MD5 checksum from a special URL containing the following response:

name=ReadyNASOS,version=6.4.0,time=1443207354,size=63391744,md5sum=7d47463d9c9014d7dc3a1cd8b88d33a7,arch=arm,descr=ReadyNASOS Update,release_notes=http://kb.netgear.com/app/answers/detail/a_id/29938

Problem is, like I said before, the actual downloaded image has a different checksum. So either the image published on Netgear site is corrupted, or that special webpage has invalid MD5 checksum. Please fix this.

AlexPe
NETGEAR Expert
Oct 14, 2015
Hi Anserk,

As of right now, we are still working on the root cause. I'll post the solution once we have concluded the troubleshooting with our engineering staff.

I appreciate your patience. If you would like to log a ticket with our customer support please do so, if not we should have an update soon.

Alex
wgrava
Aspirant
Oct 15, 2015
Same problem here. Waiting for further instructions ...
AlexPe
NETGEAR Expert
Oct 15, 2015
Thank you everyone, we have retrieved some good data from alexej's machine. We could use a comparison system. If any of you're interested please pm me directly.

Thank you for your patience,

Alex
hueykiller
Aspirant
Oct 16, 2015
Hello what is the status? I have the same Problem?
wgrava
Aspirant
Oct 16, 2015
Alex, I can contribute additional info. Please let me know what I have to do. Not too savvy technically here so please be detailed. Thanks. Wilson
alexejCederholm
Tutor
Oct 16, 2015
Hi,

The support team managed to solve the issue yesterday, unfortuantly I don't know how as they did it through remote connecting to the Nas. Hopefully Alex can either provide a step by step solution or do the same for you.
anserk
Aspirant
Oct 16, 2015
I performed USB recovery as described elsewhere on this forum, and everything is working for me now. It took only 30 minutes for the whole process including USB drive preparation.