Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc2/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1277146 Title: mount -o loop.... changes the udf image Status in linux package in Ubuntu: Confirmed Bug description: I tested an UDF iso image with mount -o loop... and I was really surprised, the mount changed the image. I am not sure what it writes to the image, probably almost nothing (mount time stamp?) but the checksum of the image is changed. It's very bad when you download something you mount it (just to test) and then you want to check the checksum of the file.... to check: $ mkdir testdir $ genisoimage -udf -o testimage.iso testdir/ ... $ sudo md5sum testimage.iso 92c720ac623ed697e222047b23935a0c testimage.iso $ sudo mount -o loop testimage.iso /mnt mount: block device /home/qji/testimage.iso is write-protected, mounting read-only < --- mount says it's a read only mount $ md5sum testimage.iso 0bc99bab37df097c5aabff7bc6a6de68 testimage.iso < --- checksum is already changed $ sudo umount /mnt $ md5sum testimage.iso 0bc99bab37df097c5aabff7bc6a6de68 testimage.iso < --- umount doesn't touch the file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1277146/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
