UDF Partition is readonly and has no size in windows but Read/Write in Linux

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I am having the following issue. I have an UDF partition for interoperability between Linux and windows on a dual boot system (having some VM hard disks images there). All was okay, I could read from and write to the partition on windows and Linux. But now I discovered that windows cannot write to the partition anymore because it sees it as read-only, Linux is still okay with it for writing.

Tried to unmount the partition in Linux and then reboot, did not make any difference, still not writable.

By the way I am using Windows 10 and Ubuntu 17.04 with udftools.

Wilko van der Veen

Posted 2017-06-24T14:24:10.317

Reputation: 1

Is this a dual-boot system, or a removable drive? If dual-boot, did you hibernate Linux when you booted Windows? Did you dismount the drive in Linux before switching? (I don't use UDF, but I've had similar problems with sharing other file systems.) – AFH – 2017-06-24T14:34:05.290

It is a dual boot system. I just shutdown linux... unmouting should be done automatically i guess while rebooting? – Wilko van der Veen – 2017-06-24T14:35:32.120

You could try dismounting manually to see if that makes a difference. – AFH – 2017-06-24T14:37:24.120

why don't just use NTFS or exFAT? or install ext drivers to Windows – phuclv – 2017-06-24T16:45:48.587

No NTFS, has huge problems with user mapping in Linux. exFat could be used but this is what it is right now. – Wilko van der Veen – 2017-06-30T14:45:27.140

Dismounting did not work – Wilko van der Veen – 2017-07-07T12:48:35.973

Answers

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But now I discovered that windows cannot write to the partition anymore because it sees it as read-only, Linux is still okay with it for writing.

This happen on Windows when UDF filesystem is in inconsistent state or damaged. Try to run chkdsk.exe and see if it reports some problems. Windows's chkdsk.exe supports checking for errors also on UDF filesystem. If there are really errors, you can try to fix them by specifying /F parameter... but I was told that chkdsk.exe /F in some cases when trying to repair broken UDF, damage it even more.

Pali

Posted 2017-06-24T14:24:10.317

Reputation: 76

Tried this but no results. (maybe even more damage, as you were saying) – Wilko van der Veen – 2018-01-22T15:38:34.577

Asked: 2017-06-24T14:24:10.317

Viewed: 503 times

Active: 2018-01-18T17:48:02.600