Cause
I tried to install OpenVPN, and made a config error in server.conf, so after start of the "OpenVPN" service, I lost connection
Afterwards for every boot, the ReadyNAS got 2 IP Addresses and was non-responding on both - even though I could ping one (10.0.0.100) until OpenVPN Started...so I was pretty sure this was "just" a config issue.
In RAIDar, It looked like this:
Failed recovery Attempts
I tried OS Reinstall via the built-in function, but the problem was still there (which I find pretty wierd)
I tried USB Boot that keept on failing with "OS Index Error" on several USB Sticks.
The Solution
I googled and found http://onlyblueatwork.wordpress.com/2012/12/04/netgear-readynas-access-recovery/
I booted the ReadyNAS in "Tech Support" mode and used Telnet go enter:
Username: root
Password: infr8ntdebug
Now, there are 2 interesting things, 1 - the OS Partiton and 2 - The Data partition
1 - OS Partition
The googled article refers to "mdadm" - with was not on my NAS (Raidar 4.1.13), after a lot of trial-and-error, I got the raid started:
# ./start_raid.sh # cat /proc/xraid/configuration VERSION/ID::superblock=(0.1.0),ID=7f255168.00000000.00000000.00000000,create_time=4f873c3e RAID_INFO::disks_total=3,raid_disks=3,parity_disk=2,disks_online=3,disks_working=3,disks_failed=0,spare_disk=0,base_disk=0,size=3907008688,update_time=00000000,state=0,luns=2,extcmd=1,expandable_bitmap=0x0,lsize=3907008686,drive_present=0x7 LOGICAL_DRIVE:0:begin_sector=32,sectors=4096000,raid_level=1,status=redundant,initialized=1,dmap=7 LOGICAL_DRIVE:1:begin_sector=4096032,sectors=3902912686,raid_level=X,status=redundant,initialized=1,dmap=7 PHYSICAL_DRIVE:0:number=0,device=hdc,major=22,minor=0,raid_id=0,state=online,present=1,size=3907008688,r_model=ST2000DL003-9VT166,r_size=3907008688,r_fw=CC3C PHYSICAL_DRIVE:1:number=1,device=hde,major=33,minor=0,raid_id=1,state=online,present=1,size=3907008688,r_model=ST2000DL003-9VT166,r_size=3907008688,r_fw=CC3C PHYSICAL_DRIVE:2:number=2,device=hdg,major=34,minor=0,raid_id=2,state=online,present=1,size=3907008688,r_model=ST2000DL003-9VT166,r_size=3907008688,r_fw=CC3C RUN_PARAMETERS::raid_running=1,last_word=ok,interface_start_at=1,fake=0 RAID_REBUILD::sync=0,logical=0,parity=2,sectors=0,total=4294967295,source=7,total_drives=3,auto_sync=1 RAID_P_CHECK::chck=0,current_lun=0,total_luns=2,raid_level=0,err=0,current_sector=0,total_sectors=0,report_err=1 RAID_P_INIT::initialized_bitmap=0x7,initialize_error_bitmap=0x0,initializing_bitmap=0x0,current_sector=0,total_sector=0
The "mdconfig" binary on the ReadyNAS was not very verbose, but try to use "DMESG" for some output". The output above stated that the X-RAID is fine.
Here after, It should be poosible to mount the OS Partition as:
# mkdir /mnt /mnt/root # mount /dev/md0 /mnt/root
but that fails, so I did a (in the DMESG output I could determine the physical disks as /dev/hdc /dev/hde /dev/hdg):
# mount /dev/hdc1 /mnt/root # rm /mnt/root/etc/openvpn
I was a bit concerned about changing directly on /dev/hdc ...
After the simple removal of the OpenVPN Startup I did a reboot and - Ta Da - everything was ok again - Due to OS Reinstall I had lost some settings (backup settings was gone).
1 - Data Partition
To Access the data:
# lvm lvdisplay --- Logical volume --- LV Name /dev/c/c VG Name c LV UUID fmjd5B-7MXl-Ukkp-9BlT-UvFO-GQLV-8ZbSsj LV Write Access read/write LV Status NOT available LV Size 3.63 TB Current LE 118930 Segments 2 Allocation inherit Read ahead sectors 0 # lvm lvchange -a y /dev/c/c # mount /dev/c/c /mnt/lvm # cd /mnt/lvm # ls -l drwxrwxrwx 2 65534 65534 16384 Temp drwxrwxrwx 12 65534 65534 16384 public drwxr-xr-x 3 0 0 16384 recovery drwxrwxrwx 6 65534 65534 16384 develop drwxrwxrwx 14 65534 65534 16384 media -rw------- 1 0 0 8192 aquota.group drwxr-xr-x 6 98 98 16384 home drwx------ 2 0 0 16384 lost+found -rw------- 1 0 0 8192 aquota.user drwxrwxrwx 13 65534 65534 16384 backup #
Links
http://kb.netgear.com/app/answers/detail/a_id/24874
Unofficial Recovery: http://home.bott.ca/webserver/?p=159
Boot menu access: http://kb.netgear.com/app/answers/detail/a_id/24874
After Power Off
| Button to Hold | Time to Hold | LED flashes | Boot Menu Mode |
|---|---|---|---|
| Power | 5 seconds | 1 | Skip Volume Check |
| Power | 10 seconds | 2 | TFTP Boot |
| Power | 15 seconds | 3 | Tech Support Mode |
| Power | 20 seconds | 4 | USB Boot |
| Power | 25 seconds | 5 | Memory Test |
| Reset | 5 seconds | 1 | OS Re-install |
| Reset | 30 seconds | 2 | Factory Default |
Ref: http://kb.netgear.com/app/answers/detail/a_id/24874