Re: accidentally deleted very large file (3.5TB) but still available through loop device

[Chris Allen <chris@xxxxxxx>]

Eric Sandeen wrote:
> Chris Allen wrote:
>   
> > Hi,
> >
> > In a nutshell, I did the following:
> >
> > 1. dd if=some_filesystem_dump of=some_file (where some_file resides on
> > an XFS filesystem and is 3.5TB large)
> >
> > 2. losetup /dev/loop0 some_file
> >
> > 3. mount /dev/loop0 /recovered
> >
> > [.... i can now access my recovered filesystem through /recovered ...]
> >
> > 4. rm some_file (remotely via an nfs export) (oops!)
> >
> > So, I just removed my 3.5TB file even though it is attached to the loop
> > device and mounted (XFS did this almost instantly).
> >
> >     
> I'd suggest:
>
> # xfs_freeze -f /recovered
> # dd if=/dev/loop0 of=saved_file
> # xfs_freeze -u /recovered
>
> to be sure you get a consistent view of the fs.
>
> -Eric
>   
Many thanks to those who have replied. This solution does indeed work 
perfectly and
I have recovered my lost file.

Chris.