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Urgent XFS Recovery

Title: Urgent XFS Recovery


I have an XFS partition, which is

1) Mistakenly quick formatted as FAT16.
2) At first, I couldn't see in "fdisk -l" that it is set to FAT16, instead of Linux. Hence tried to fix it with xfs_recover. xfs_recover returned 0, and mount operation succeeded; but mounted fs size appeared as 20GB (despite it is 350GB) and almost every the file is missing.
3) Later set the type of /dev/sda1 (the only partition in /dev/sda) to Linux, re-run xfs_recover, but nothing changed.

I open the system with Knoppix, and below are the details of the current status. I need urgent help to recover the files. I will be really, really appreciated for any help!


# fdisk -l

Disk /dev/sda: 320.1 GB, 320072933376 bytes
255 heads, 63 sectors/track, 38913 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x447c435f

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       38913   312568641   83  Linux

# mount | grep /dev/sda1
/dev/sda1 on /media/sda1 type xfs (rw,relatime,attr2,noquota)

# df -h | grep /dev/sda1
/dev/sda1              19G  4,2G   15G  23% /media/sda1

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