Ready NAS Ultra 6 Plus - OS 6.9.5 >> 6.10 Upgrade Fail - Safe Mode Options

UltraGar
Aspirant
Jul 17, 2019
StephenB wrote:

UltraGar wrote:
Would I be doing steps similar to this to try mounting the volume in Read Only mode?

https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/Disk-volume-no-longer-active-force-activation/m-p/1553673#M144637

You could try that, and if those commands work do a backup of the NAS.

You'd boot in tech-support mode, and telnet into the NAS. User/pass is root/infr8ntdebug
Then enter
# rnutil chroot
Which will start RAID and chroot.

It might be worth trying to re-apply the firmware update next. You'd do this by
# touch /.os_update
# reboot
If that fails, you'd have to reboot in tech support mode, and go in again.

Thanks for the valuable information StephenB! I was able to enter Tech Support mode and use the login information to perform some tasks.

The rnutil chroot command did not work because there's no bash available, however, using the information from the other thread, I found mdadm and btrfs already installed and was able to mount the RAID volume in read-only and it appears intact. It's reassuring to at least see the files and folders there.

It's a little slow going in part to getting acquainted with the Busybox Linux, getting SSH running through Dropbear, and not quite succeeding with WinSCP (which likes bash or ksh) or SFTP yet. Will also try to transfer files via USB once I figure out how to find and mount it.

I took a peek at the Boot volume and noticed that I'm only using about 25% of the avalable space (2.7G free). Thought maybe it was full and caused a problem on the upgrade. Once I get the files off, I'll try re-running the upgrade. At USB 2.0 transfer speeds, this could be a while.

As a related question, would I be able to take these OS6-formatted drives and transfer them over to a newer unit, like the RN426 (6 drives in the legacy unit, 6 slots in the new unit), use the boot menu to get into Read-Only mode to access the data that way (I don't have Read-Only option on the Ultra 6 Plus)? If so, and assuming no corruption or failed disks, would I be able to simply transfer the files via SMB instead?

Anyway, thanks again for the help StephenB! I'll check in again soon!
- StephenB
  Guru - Experienced User
  Jul 17, 2019
  UltraGar wrote:
  
  The rnutil chroot command did not work
  
  It should have - perhaps that's a side effect of the failed OS update? It is possible to manually mount the OS partition and then do a chroot.
  
  UltraGar wrote:
  
  I took a peek at the Boot volume and noticed that I'm only using about 25% of the avalable space (2.7G free). Thought maybe it was full and caused a problem on the upgrade.
  
  That is a common issue, so it's good that you ruled it out.
  
  UltraGar wrote:
  
  As a related question, would I be able to take these OS6-formatted drives and transfer them over to a newer unit, like the RN426 (6 drives in the legacy unit, 6 slots in the new unit), use the boot menu to get into Read-Only mode to access the data that way (I don't have Read-Only option on the Ultra 6 Plus)? If so, and assuming no corruption or failed disks, would I be able to simply transfer the files via SMB instead?
  
  You should be able to do that (though of course the failed OS update could get in the way there too). You could then re-purpose the Ultra Plus as a backup NAS.
  
  Another thing you could try is doing a fresh factory install to a single (spare) disk. If that comes up as 6.9.5, you could try updating it to 6.10. Then power down and reinsert your original disks.
  - UltraGar
    Aspirant
    Jul 21, 2019
    StephenB wrote:
    UltraGar wrote:
    The rnutil chroot command did not work
    
    It should have - perhaps that's a side effect of the failed OS update? It is possible to manually mount the OS partition and then do a chroot.
    As I Telnet or SSH in, I get into Busybox, which is very limiting. I input:
    
    # rnutil chroot
    chroot: can't execute 'bash': No such file or directory
    
    I can mount and see the OS partition, but I don't seem to be able to use any of the commands in the OS partition's /bin or /sbin directories. Busybox doesn't really give me the means to compile or use other programs that are not already included.
    
    Another thing you could try is doing a fresh factory install to a single (spare) disk. If that comes up as 6.9.5, you could try updating it to 6.10. Then power down and reinsert your original disks.
    After recovering my files, I managed to get a functioning NAS with the spare disk, with a successful boot first into 6.9.5, then 6.10.1 after an upgrade. Operation seems normal enough - can change settings, create shares, upload and access files. The GUI tells me without a volume the settings will be lost, but they seem to stick.
    
    So I reinserted the original disks and performed an OS Re-Install. Rebooted again and ended right back into Safe Mode in OS 6.10.1. :smileyfrustrated:
    
    Is there a way I can copy the boot partition off the spare disk onto the 6-disk boot partition and force OS 6.10.1? I tried accessing the spare partitions with Busybox and in Windows 10 with a WinBtrfs driver and failed. The NAS and Windows see the physical drive, but I can't mount them; and without mounting, I can't transfer the files anyway.
    
    Looking like I might have to bite the bullet and factory reset the 6 disks. Any other ideas before I hit the big red button?
    
    Thanks!

Forum Discussion

Ready NAS Ultra 6 Plus - OS 6.9.5 >> 6.10 Upgrade Fail - Safe Mode Options

Related Content

Nighthawk app not connecting but Wi-Fi works> Try This...

VPN Ports Closed -> VPN Timeout

Problema sezione Avanzate > Configurazione avanzata > Impostazioni wireless

READYNAS RN102 OS6 bloque apres upgrade firmware 6.10.6=>6.10.7

Router -> Switch -> Satellites -> Switches?

NETGEAR Academy

ProSupport for Business