On 2014-08-24 08:46, Pali Rohár wrote: > Hi, > > I would like to know what is state of linux UDF driver. It is > experimental or is now suitable for storing data? > I know that read support works for every version I have tested, but I've only tested it reading data from DVD's and Blu-Ray discs, so I don't know how well it works for other purposes. > According to wikipedia [1] UDF has open specification format and > can be used also for HDDs (not only optical discs). > > In OS support table is written that all major and other minor OSs > support UDF FS (without needs for additional programs). > > So it looks like UDF is good candidate for multi OS filesystem. > Are there any disadvantages for using UDF on e.g USB flash disk? > (when I want read/write support on Linux, Windows 7 and Mac OS X) If you are going to go that way, make sure to use the Spared Build, as otherwise you will run in to the same media wear-out issues that NTFS and FAT have. Also, keep in mind that pre-Vista Windows and pre-10.4 OSX don't have very good support for the newer formats. > Because lot of manuals say that FAT32 (or NTFS) is only one > solution for using USB flash disk on more OS. > > On wikipedia there is one note about linux: Write support is only > up to UDF version 2.01. Is this restriction still valid? I do know that we support reading UDF 2.60 (I've used linux to read Blu-Ray discs), but I have no idea about write support for versions above 2.01. > What will happen if I try to mount FS with UDF version 2.60 in > R/W mode on linux? It will fallback to R/O mode? Or newly written > files will be in previous (2.01) versions? > > And last question: Is there some fsck tool for UDF? Or at least > tool which print if FS is in inconsistent state? Most Linux distributions have a package called udftools, the upstream URL given by portage is http://sf.net/projects/linux-udf/ > > [1] - http://en.wikipedia.org/wiki/Universal_Disk_Format >
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