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kheno's avatar
kheno
Aspirant
Jun 18, 2015

6.2.4 high cpu => lockup => reboot => boot failed

Hi,

I've had the same problem as mentioned here:

http://www.readynas.com/forum/viewtopic.php?f=160&t=81294

readynas ultra 4
os 6.2.4 (as I recall)

After a while ssh was not accessible.
I also had the only option to unsafe power off the device.

Only that now it keeps saying: booting
followed by boot failed, retry boot.

I've already tried the boot mem check which resulted in no errors.

Raidar only shows "system starting up..."
ssh, web, ... are not accessible.

I'm a little careful on what to do next.

Should I try the boot os install?

14 Replies

Replies have been turned off for this discussion
  • StephenB's avatar
    StephenB
    Guru - Experienced User
    /dev/md0 is the OS partition, not the data partition.

    On my RN102 (which is jbod) /dev/md126 and /dev/md127 are the two data partitions.
  • mdgm-ntgr's avatar
    mdgm-ntgr
    NETGEAR Employee Retired
    Would not suggest running commands randomly when you are not familiar with them especially destructive ones.

    Cloning your disks before doing something destructive would be recommended.

    If you are going to use btrfs restore you would do e.g.

    # btrfs restore /dev/md127 /mnt/restore

    If a USB disk is mounted at /mnt

    You can if you like run it verbosely and send the data nowhere just to test if it can find anything

    btrfs restore -v /dev/md127 /dev/null
  • recovering! :D

    Had some errors while writing files.
    Thought it would be an incompatibility with the ntfs file system, so I formatted the external disk in ext4
    Problems solved.

    The only question I have, and could nowhere find a hint:

    My destination disks are too small to fit 5TB, can I recover/split over multiple destination drives?
    When a drive is full I suspect recovery will end with an error and just stop.

    Any idea?

    Btw, thanks for your help!
  • mdgm-ntgr's avatar
    mdgm-ntgr
    NETGEAR Employee Retired
    Sent you a PM. If you recall your directory structure there should be a way to do this.

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