# After using TestDisk

### From CGSecurity

After writing a new partition structure, you have to reboot for the change to take effect. Check the filesystems and repair them if necessary.

## Writing the partition table

### Mac OS X

Use pdisk to recreate the Mac partition map using the values given by TestDisk

## How to check and repair a filesystem

### ReiserFS

If the superblock of a reiserfs partition is missing, it can be rebuild with reiserfsck --rebuild-sb device.

### To repair a FAT/NTFS filesystem under Windows

To check a NTFS partition from Windows, run chkdsk /f c:

## How to make the system bootable again

### Dos - Win9x

If your OS doesn't boot, you can reinstall the system files with `sys c:`.

### Windows 2000/XP/2003

If your Windows doesn't boot, try fixmbr from the Windows Recovery Console and fixboot to repair NTFS boot sector.

### Linux/FreeBSD

You may have to update your /etc/fstab to reflect the new partition order.

### Multiboot

You may have to update your multiboot configuration and reinstall the multiboot in the Master Boot Record.

- Lilo: /etc/lilo.conf, lilo to re-install
- Grub: /boot/grub/grub.conf, grub-install device
- Windows (NT/2000/XP/2003/...): c:\boot.ini, run fixmbr from the Recovery Console (ie. fixmbr \Device\HardDisk0)

## How to undelete files

### Ext2fs

To undelete files on linux, you can try e2undel

### ReiserFS

Read the ReiserFS file undelete HOWTO

### PhotoRec

Try PhotoRec if you want to recover files and the system is too badly damaged to be repaired.

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Category: Data Recovery

##### Data Recovery

- TestDisk
- PhotoRec
- download