On 11/11/2020 20:16, Carlos E. R. wrote: > On 10/11/2020 17.22, Davide Marchi wrote: >> Hi to all, >> >> I'm wondering how to create a DVD or CDROM encrypted using dm-crypt. >> I've followed this tutorial, with no luck: >> http://www.sourcentral.org/luks/iso9660/ >> >> and the DVD or cdrom created cannot be activated: > > Hum. I created encrypted DVD years ago with a similar procedure, > somewhat simpler. Basically, I created an empty file of the same size as > the CD or DVD, mounted it as a loop device, then I encrypted that loop > device, and then I formatted the resulting luks device with any > filesystem type I wished, typically XFS. > > This, so far, still works. > > Then I just burn that file to DVD. > > The final step is to mount and decipher the DVD - and this step failed, > but it was an XFS error if I remember correctly. You cannot switch block size in XFS - if DVD reports 2k block and XFS was formatted with 4k block device, it will never work. This is not a cryptsetup problem but the way how XFS works. Try to run lsblk -t and compare reported sector size for DVD device and your original device. If it is the same, it should work even for XFS. Milan _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx https://www.saout.de/mailman/listinfo/dm-crypt
