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Back in Windows 95 OSR2 (I believe), there was a conversion tool that would take your extant FAT16 partition and change it to FAT32 non-destructively (most of the time).

Are there any tools like that now for going from one file system type to another in situ without destroying the data?

Examples: from etx3 to ext4? Or NTFS to XFS?

warren
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2 Answers2

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For ext3 to ext4 you can use:

tune2fs -O extents,uninit_bg,dir_index /dev/yourfilesystem

followed by:

fsck -pDf /dev/yourfilesystem

To return the system to a consistent state. However, I don't believe (someone correct me if I'm wrong) that this is a complete conversion. I believe there may be an issue with extents...

For FAT to NTFS:

convert (your drive letter here): /fs:ntfs

NTFS to XFS I have no idea but I would doubt it. NTFS is proprietary...

Pulse
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the built in convert command in Windows (even in windows 7), let you convert a FAT filesystem to NTFS,

For other convertions Partition Magic may do the job.