Author Topic: duplicate block references have been detected in meta data  (Read 1073 times)

andreas

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duplicate block references have been detected in meta data
« on: January 28, 2025, 01:00:48 am »
cannot start any drive anymore.
It seems I have a corrupt partition table.
At least the Installation Volume Manager tells me so.
under chkdsk i get the message. "duplicate block references have been detected in meta data"

what can i do?

Dave Yeo

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Re: duplicate block references have been detected in meta data
« Reply #1 on: January 28, 2025, 03:18:42 am »
Have you tried chkdsk /D x:
Try DFSee.
I've had success and failures trying fsck-jfs under Linux (Mint) and in one case mounted a bad partition read-only under Linux and copied everything (except one directory) to alternate media. Unluckily often the default mount of OS/2 JFS doesn't enable xttrs (Extended Attributes).

andreas

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Re: duplicate block references have been detected in meta data
« Reply #2 on: January 28, 2025, 04:24:24 am »
i tried chkdsk C:/ F:1    what does /D x: do?

i'm just trying to create a linux live-stick, KI gave me advice to use gparted. stick is beeing built right now.

I have no experiance with linux at all. But i will try. I really need access to my system as quick as possible

edit:
before chkdsk worked, but now i get the message "SYS0015: The System cannot find the specified drive."
« Last Edit: January 28, 2025, 04:33:43 am by andreas »

Dave Yeo

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Re: duplicate block references have been detected in meta data
« Reply #3 on: January 28, 2025, 05:24:57 am »
/D for debug, sometimes it helps or at least a better error report.
If you have no experience with Linux, I don't know if you should go that route. You need to figure out what device(s) you have and use a terminal to do something like sudo fsck /dev/sda1 or use fsck.jfs if I remember correctly.
With Gparted, it might give you an idea of the problem but you can break your partitioning as far as OS/2 is concerned, really easy. Not all distributions have JFS support either
Have you looked at DFSee? There's an option to install to a minimal Linux USB stick or if you get your USB Linux stick booting, running DFsee from it.
Good luck and after consider back up plans. I have a USB hard drive, use rsync to back up my data and use zip to zip up my boot partition.
BTW, is it a hard drive or SSD that is giving you problems?

Dariusz Piatkowski

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Re: duplicate block references have been detected in meta data
« Reply #4 on: January 28, 2025, 05:28:48 am »
andreas,

i tried chkdsk C:/ F:1    what does /D x: do?

Courtesy of Lewis (AOS) and sTeven Levine (whom he credits for sharing his notes on this topic):

Code: [Select]
Check FS content
Usage: chkdsk drive: [/A] [/B] [/C] [/D] [/F[:n]] [/O] [/P] [/V]

/A - Enable autocheck mode (undocumented)

/B - Perform LVM Bad Block List utility processing only

/C - Process ifdirty after logredo

/D - Enable debug mode (undocumented) all log messages written to stdout in english

/F[:n] Full check

0 => read only (default)
1 => prompt for permission for each repair
2 => preen (default if n omitted)
3 => Assume permission given for all repairs.

If exiting with clean file system, invoke LVM Bad Block List utility processing on the way out.

Note: :1 and :2 are converted to :3

/O - Omit logredo (undocumented)

/P - Enable pmchkdsk mode (undocumented)

/V - Verbose messaging (ignored)

Both / and - prefix supported
Options are case-insenitive Called as chkdsk drive: /F /A [/C] for autocheck

andreas

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Re: duplicate block references have been detected in meta data
« Reply #5 on: January 28, 2025, 07:05:43 am »

Have you looked at DFSee? There's an option to install to a minimal Linux USB stick or if you get your USB Linux stick booting, running DFsee from it.
..
BTW, is it a hard drive or SSD that is giving you problems?

I have DFSee, but now i have no access to it ... how exactly should i use it to rescue my partition?
it's a hard drive, no SSD..

i tried gparted. It had no problem with my partition E:, but found no access to C: (same as OS/2 now)...


Dave Yeo

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Re: duplicate block references have been detected in meta data
« Reply #6 on: January 28, 2025, 07:11:29 am »
Two ways. Download https://dfsee.com/download/dfsee_install.zip and use the Linux version with your Linux that you ran gparted from or download either the Puppylinux or Freedos USB images and boot the USB stick.
With the Linux version, you may have to run it as sudo, "sudo ./dfsee"

andreas

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Re: duplicate block references have been detected in meta data
« Reply #7 on: January 28, 2025, 02:56:11 pm »
thanks. i'm going to try that. just downloaded the package. Also downloaded virtual box for linux.
how do i use dfsee in my case? i don't want to make any mistake.

Dave Yeo

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Re: duplicate block references have been detected in meta data
« Reply #8 on: January 28, 2025, 05:15:27 pm »
Have to see what DFSee has to say about your partitions. Hopefully it will report something fixable.

andreas

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Re: duplicate block references have been detected in meta data
« Reply #9 on: January 29, 2025, 11:49:06 am »
have a problem to install DFSEE with Linux. I cipied the files into the install folder, but cannot find this folder under linux.
I will try it with my ARCAOS-installation-stick, though I'm afraid i might destroy that stick as well as i destroyed some others.

edit:
same as on the linux-stick, the dfsee-files are not seen/accessable once you start the OS. I gave up. Sent the disk to some company to recover the data..
anyway, thanks for your help
« Last Edit: January 29, 2025, 04:14:08 pm by andreas »