Hi everybody, thank you very much for all responses! I could not follow up, I was very sick. Sorry! Here we go again... It would be great to have any suggestions! Thanks to everybody! Thanks a lot!!! Dumps: ASCII blkid /dev/sdb crypto_LUKS (not mounted) 45c461c2-1976-48a2-804f-b3812173b0e8 crypto_Luks (not mounted) parted -l Fehler: /dev/sdb: unbekannte Partitionstabelle Modell: ThinkPad Secure 1TB 3.0 (scsi) Festplatte /dev/sdb: 1000GB Sektorgröße (logisch/physisch): 512B/512B Partitionstabelle: unknown Disk Flags: luksDump LUKS hader information for /dev/sdb Version: 1 Cipher name: aes Cipher mode: xts-plain64 Hash spec: sha512 Payload offset: 4096 MK bits: 512 MK digest: 23 93 9a 2a ed f5 d1 3c d9 2b 7e 3f fb 30 46 68 f0 5d a1 6a MK salt: 8c c2 23 61 b1 73 e6 82 3f 32 a2 3e fb 89 ec fa 75 f8 f9 d9 0c 25 6d f0 57 e1 62 64 8e 13 51 97 MK iterations: 102500 UUID: Key Slot 0: ENABLED Iterations: 409204 Salt: f9 7a ee a2 e5 bb 8a d0 a1 4c 4d e2 0b ac e2 86 37 f5 ce fe 2a 9c 65 a0 ac cc fe 35 2e 0d 11 8e Key material offset: 8 AF stripes: 4000 Key Slot 1: DISABLED Key Slot 2: DISABLED Key Slot 3: DISABLED Key Slot 4: DISABLED Key Slot 5: DISABLED Key Slot 6: DISABLED Key Slot 7: DISABLED Hi there, Please resend the dumps in ASCII as Arno suggested. Meanwhile: It seems the disk has no partition and starts with a LUKS-Header right away. While the LUKS-Header itself seems to be consistent (at first glance) the keyslot itself could of course be damaged. Regards -Sven Am 14.01.2016 um 11:02 schrieb sumaya1960 at gmx.de : >//>//>/Hi everybody, />//>/I am a bit lost now. I tried (why so ever) to connect my (ext4) />/encrypted disk to a Windows 10 System - (what a big stupid idea - I know />/- very very stupid).... />//>/Now I can not access my encrypted disk anymore and wonder if the Header />/is damaged? My pass-phrase is absolute correct, but not accepted with />/luksOpen! />//>//>/luksDump gives />//>//>//>//>/blkid shows />//>//>//>/What happened to my external disk? I am running Cent OS7... />/For any help I would be so thankful!!! Really very very thankful!!! />/Thanks a lot! />//>/Kind regards, />/Sumaya />//>//>//>//>//>//>//>//>//>