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![]() The Ext2Fsd project, for instance, allows you to mount and read ext2 through ext4 (although ext4 is read-only at this point), although it doesn’t support LVM or Linux RAID volumes. Windows does not by itself have native support for ext3/4 or other Linux file systems, but it can be added after the fact. Add Linux file system compatibility to Windows and move the files in Windows. FAT32 cannot handle files bigger than 4 GB, so making a monolithic backup file on such a volume is out of the question you’ll need to break it into chunks if possible.Ģ. Note that if you’re using FAT32 as the target, any files written to that volume-whether they are simply copies of the files on the source drive or backup archives-need to be less than 4 GB in size. Most breeds of Linux now come with some form of read/write NTFS compatibility built in, or if all else fails you can write to a FAT32 volume (which is broadly supported by Linux, too) or a network share. All you need is a target device of some kind that can be read by the target system. Linux, Windows and Unix interoperability: News and tipsĪs indicated above, this approach is the simplest, most widely supported and least complicated. Back up the data and restore it elsewhere. If you do find yourself in a situation where you have to migrate data, there are plenty of options that don’t involve in-place manipulation of partitions.ġ. In almost every scenario I’ve been presented with, the need to upgrade something in-place has been more about a failure of imagination or creativity on the part of the admin than any actual technical restrictions on the part of the system in question. Storage has become exponentially cheaper and more flexible in the last decade, which means it’s cheaper (and easier, and safer) to hook up a second drive and mirror the contents of the drive to it rather than attempt in-place conversions. Third, there are almost no scenarios left where you have to perform an in-place modification. If you attempted to convert an ext3/4 file system to NTFS, file names would have to be modified to ensure compatibility-which might in turn break other things. Another example is the way names in Linux file systems can contain characters that would not be permitted in NTFS, such as slashes or the pipe character (|). NTFS would only allow one file with that name, no matter what case was used for it. The first is the way Linux file systems are case-sensitive: you can, for instance, have two files named RASTER and raster in the same directory. ![]() One pretty obvious example is the way Linux file systems like ext3 and ext4 (and Unix file systems generally) have features that cannot be replicated in NTFS at all. ![]() Second, some of the features of each file system do not map precisely to the other. That’s your first option right there: instead of messing with the volume as-is, back it up in some form-whether by a backup utility, a disk-imaging program or a simple archiving tool-and use the backup to recreate the data somewhere else in the needed file system. Plus, if that data has any value to you at all, it’s worth backing up-and if you make a backup, you’re better off working from that backup copy in some form than the original in any form. If something goes wrong during the conversion, your only copy of that data is ruined. You’re trusting the program to manipulate the entire volume at once, with little margin for error. When you’re working on the only available copy of a given file system, that’s a risky action. Here’s why.įirst off, in-place conversion of disk formats is inherently dangerous. There are also plenty of reasons why this feature is not a good idea in the first place, and it's becoming less and less necessary, anyway. Sadly, such a conversion is just about impossible, and I suspect it won’t be possible anytime in the future either.
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