Hello, I hacked gpart, and now gpart v0.1a just support NTFS NT/2000 filesystem, If you use Windows XP, you can not use gpart to try to repair ntfs filesystem. The patch is very simple, and i have tested Windows XP profressional with service pack 2. please test the patch in attachment.

diff -Nur old/src/gm_ntfs.c new/src/gm_ntfs.c
--- old/src/gm_ntfs.c 2008-04-04 22:23:55.000000000 +0800
+++ new/src/gm_ntfs.c 2008-04-04 22:25:02.000000000 +0800
@@ -73,9 +73,11 @@
return (1);
size = NTFS_GETU64(d->d_sbuf + 0x28);

+#if 0
size /= clusterfactor;
size *= clustersize;
size /= d->d_ssize;
+#endif

/*
* look for an additional backup boot sector at the end of