A user of my program 'virt-v2v' is unable to convert their Windows Server 2003 guest. Apparently the Windows guest contains a malformed filename in C:\Windows\System32 which causes ntfs-3g to error when reading this directory. Anything that accesses this directory (eg. 'ls' or my program that uses readdir) fails with:
ls: reading directory /sysroot/WINDOWS/system32: Invalid or incomplete multibyte or wide character (This is errno EILSEQ). Under Windows itself, the directory appears normal -- it is able to be listed and so on. There are two files with non-ASCII characters, but deleting both of them (using Windows) did not change the problem with ntfs-3g. I am not able to get a copy of the broken disk image, because it's 130GB in size. But I did manage to create a broken filesystem that behaves in a similar manner. I did that by hexediting a NTFS disk image to add an illegal UCS-2 character (U+DF00) to a filename. You can get that disk image by downloading the attachment here: https://bugzilla.redhat.com/show_bug.cgi?id=1301593#c6 As far as I know, the real broken disk image was NOT created by hexediting or otherwise hacking the filesystem, but by some ordinary process on Windows (not yet understood nor reproduced). My question then is can we somehow ignore these files? Also, how does the locale setting affect ntfs-3g? Does it use the locale? Would a different LC_ALL setting affect how ntfs-3g might process a broken UCS-2 character? (I tried several LC_ALL settings, but with no apparent effect). Because of the complexity of virt-v2v and the number of places where we want to read C:\Windows\System32 (including from external programs), working around this in our software is going to be difficult. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/ ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ ntfs-3g-devel mailing list ntfs-3g-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ntfs-3g-devel
