I have a dedicated drive used just for data. The entire drive is encrypted with cryptsetup & LUKS. Since the drive is 3tb in size I had to create the partition with parted. The partition is aligned for optimal performance. fdisk -lu: WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdb: 3000.6 GB, 3000592982016 bytes 255 heads, 63 sectors/track, 364801 cylinders, total 5860533168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System /dev/sdb1 1 4294967295 2147483647+ ee GPT parted: GNU Parted 2.3 Using /dev/sdb Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) print Model: ATA Hitachi HDS5C303 (scsi) Disk /dev/sdb: 3001GB Sector size (logical/physical): 512B/512B Partition Table: gpt Number Start End Size File system Name Flags 1 1049kB 3001GB 3001GB (parted) align-check opt 1 1 aligned For some reason, every time I reboot the LUKS header is no longer recognized. I checked to make sure the appropriate modules are loaded into memory. The first time I just redid it thinking maybe I did something wrong. The second time now this has happened I'm thinking something else is going on. Why does this keep happening? How do I fix it without redoing it as I have data on this drive. # cryptsetup luksDump /dev/sdb1 Device /dev/sdb1 is not a valid LUKS device. _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
