Hi team, How to find the superblock size of the physical device which is encrypted using dm-crypt utility. I have formatted my device using integritysetup tool and applied integrity using dm-integrity and dm- crypt stacked on top of that. So my requirement is to corrupt the physical layer of the device except superblock and check whether it is mounting successfully. Note: I tried corrupting the super block (initial some blocks ) and tried mounting and it fails. so now I have to try without corrupting any blocks of the superblock and rest of the things I need to corrupt. The integritysetup dump is giving me the following result. root@imx8dx_ccu:~# integritysetup dump /dev/mmcblk0p5 Info for integrity device /dev/mmcblk0p5. superblock_version 1 log2_interleave_sectors 15 integrity_tag_size 32 journal_sections 1 provided_data_sectors 14240 sector_size 512 flags root@imx8dx_ccu:~# How to find the superblock size of the device ? Regards, Sharmila _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx https://www.saout.de/mailman/listinfo/dm-crypt
