Move mailboxes from unmounted exchange 2010 database

In my Exchange 2010 environment, i have two databases in my mailbox store (+ a public folder database).
Database1 is mounted and works flawlessly.
Database2 can mount, but as soon as it is mounted, the whole information store crashes every 10-20 seconds. After unmounting it i checked with eseutil /mh and its in CLEAN SHUTDOWN state.

To fix the issue, i thought of moving all mailboxes from Database2 to a new empty Database3 i just created. The problem is the Database2 should be mounted for the move operation to work.

Is there a way to move all mailboxes from the unmounted Database2 as described?

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Not really a way to do it that I know of from an unmounted db, but you should be able to repair what ever is wrong with it. You can find the answer that that here:
Will SzymkowskiSenior Solution ArchitectCommented:
What I would highly recommend is using Kernel Data Recovery for Exchange Server. This is a great product and you will be able to export your data mailboxes to a PST format which will allow you to import them back into a different mailbox database.

Kernel Data Recovery for Exchange Server


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