Sidehistorik
Indholdsfortegnelse |
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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:
Kodeblok |
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# ./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
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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:
Kodeblok |
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# 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):
Kodeblok |
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# 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:
Kodeblok |
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# 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 |
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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
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