1NTFS2BTRFS(8)                System Administration               NTFS2BTRFS(8)
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NAME

6       ntfs2btrfs - convert ntfs filesystem to btrfs filesystem
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SYNOPSIS

9       ntfs2btrfs [options] device
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DESCRIPTION

12       This  is  a  tool  which  does  in-place conversion of Microsoft's NTFS
13       filesystem to the open-source filesystem Btrfs, much  as  btrfs-convert
14       does for ext2.
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OPTIONS

17       -c <ALGO>, --compress=<ALGO>
18           Uses  the  specified  algorithm  to  recompress files that are com‐
19           pressed on the NTFS volume; valid choices are zstd, lzo,  zlib,  or
20           none.   If you don't specify any value, zstd will be used, assuming
21           it's been compiled in.
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23       -h <ALGO>, --hash=<ALGO>
24           Uses  the  specified  checksumming  algorithm;  valid  choices  are
25           crc32c, xxhash, sha256, and blake2. The first of these will be used
26           by default, and should be fine for most purposes.
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28       -r, --rollback
29           Tries to restore the original NTFS filesystem. See ROLLBACK below.
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ROLLBACK

32       The original filesystem image is saved as image/ntfs.img as  a  reflink
33       copy.  You  can  restore this at any time by using the rollback option,
34       provided that you've not moved the data by doing  a  balance.  Bear  in
35       mind  that this restores the volume to how it was when you did the con‐
36       version, meaning that any changes you've made since will be lost.
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38       If you decide to keep the conversion, you can remove the image  subvol‐
39       ume at any point to free up space.
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XATTRS

42       Various  bits  of  NTFS-specific  data are stored as Btrfs xattrs, in a
43       manner    that     the     Windows     btrfs     driver     understands
44       (https://github.com/maharmstone/btrfs).  Some should also be understood
45       by tools such as Wine and Samba, but YMMV.
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47       • The NTFS attribute value is stored as a hex string at user.DOSATTRIB.
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49       • The reparse points on directories are stored  at  user.reparse.  NTFS
50         symlinks  should be converted into POSIX symlinks. The data for other
51         reparse points will be stored as the contents of the files.
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53       • The NT security descriptor is stored as security.NTACL.
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55       • Alternate data streams on files are stored  in  the  user  namespace,
56         e.g. :Zone.Identifier becomes user.Zone.Identifier.
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SEE ALSO

59       btrfs(8), mkfs.btrfs(8).
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AUTHOR

62       Written by Mark Harmstone (mark@harmstone.com).
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WEB

66       https://github.com/maharmstone/ntfs2btrfs
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70ntfs2btrfs 20210923             September 2021                   NTFS2BTRFS(8)
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