Downgrade ReadyNas NV+ v2

nas interface displays a server error so -_-' ?
screenshot :

While I do not have a NV+ v2 (or a Duo v2) to experiment with or tell you the exact steps, you should be able to download version 5.3.4 onto a local PC. Then you should be able to perform the upgrade locally rather than remote (which downloads from the server).

If you still have access to your data, I would back it up completely before you did anything.

its my only solution ?....

You can only downgrade by using a local upgrade. That has been the case across all models. The remote will only pull down the most recent version. It's not that bad. If you need the link to 5.3.4, I will find it for you.

this is not the problem!
as shown in the screenshot I can not make the version change via the interface, that's why I wonder if you can do it via SSH

I don't know about SSH. Are you clicking the "check for updates" button? That only works for remote update, not local which is what you want. I will have to PM someone who has an ARM based unit to try to join this discussion. As I said, I do not have one of these, but page 72 of the manual talks about the local update so it should be possible.

PapaBear wrote:
I will have to PM someone who has an ARM based unit to try to join this discussion. As I said, I do not have one of these, but page 72 of the manual talks about the local update so it should be possible.

Local update should work fine... are you saying the NAS checks/reads the local file and rejects it? Perhaps you can't downgrade if so... a driver (or whatnot) could have been updated that won't work with the older release.

Yes you can downgrade the firmware via SSH. Same procedure as on other platforms except using ARM firmware.

But first can you post output of

df -h
df -i

hi ,

# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/md0              4.0G  518M  3.3G  14% /
tmpfs                  16K     0   16K   0% /USB
/dev/c/c              8.2T  5.5T  2.8T  67% /c

# df -i
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/md0               65536   14647   50889   23% /
tmpfs                  30852       1   30851    1% /USB
/dev/c/c             136970240  393822 136576418    1% /c

Output of that looks fine. Go ahead with the downgrade if you like.