Transcript. Note that adding the —debug flag successfully opens on the *second* attempt entering the password. Without —debug, no such luck. > dd if=/dev/zero of=./test.img count=8 bs=1M > cryptsetup --hash sha512 --key-size 512 -v luksFormat ./test.img used password ‘asdf’ (no quotes) > cryptsetup open test.img test Enter passphrase for test.img: No key available with this passphrase. Enter passphrase for test.img: No key available with this passphrase. ^C Enter passphrase for test.img: Error reading passphrase from terminal. > cryptsetup open --debug test.img test # cryptsetup 1.6.6 processing "cryptsetup open --debug test.img test" # Running command open. # Locking memory. # Installing SIGINT/SIGTERM handler. # Unblocking interruption on signal. # Allocating crypt device test.img context. # Trying to open and read device test.img. # Initialising device-mapper backend library. # Trying to load LUKS1 crypt type from device test.img. # Crypto backend (gcrypt 1.6.2) initialized. # Detected kernel Linux 3.18.7-5-ARCH armv7l. # Reading LUKS header of size 1024 from device test.img # Key length 64, device size 16384 sectors, header size 4036 sectors. # Timeout set to 0 miliseconds. # Password retry count set to 3. # Password verification disabled. # Iteration time set to 1000 miliseconds. # Activating volume test [keyslot -1] using [none] passphrase. # dm version OF [16384] (*1) # dm versions OF [16384] (*1) # Detected dm-crypt version 1.13.0, dm-ioctl version 4.28.0. # Device-mapper backend running with UDEV support enabled. # dm status test OF [16384] (*1) # Interactive passphrase entry requested. Enter passphrase for test.img: # Trying to open key slot 0 [ACTIVE_LAST]. # Reading key slot 0 area. # Using userspace crypto wrapper to access keyslot area. # Trying to open key slot 1 [INACTIVE]. # Trying to open key slot 2 [INACTIVE]. # Trying to open key slot 3 [INACTIVE]. # Trying to open key slot 4 [INACTIVE]. # Trying to open key slot 5 [INACTIVE]. # Trying to open key slot 6 [INACTIVE]. # Trying to open key slot 7 [INACTIVE]. No key available with this passphrase. # Interactive passphrase entry requested. Enter passphrase for test.img: # Trying to open key slot 0 [ACTIVE_LAST]. # Reading key slot 0 area. # Using userspace crypto wrapper to access keyslot area. Key slot 0 unlocked. # Allocating a free loop device. # Trying to open and read device /dev/loop1. # Calculated device size is 12288 sectors (RW), offset 4096. # DM-UUID is CRYPT-LUKS1-81fb41f7c33c4c0aa9af442ed6230f5f-test # Udev cookie 0xd4db383 (semid 2785282) created # Udev cookie 0xd4db383 (semid 2785282) incremented to 1 # Udev cookie 0xd4db383 (semid 2785282) incremented to 2 # Udev cookie 0xd4db383 (semid 2785282) assigned to CREATE task(0) with flags (0x0) # dm create test CRYPT-LUKS1-81fb41f7c33c4c0aa9af442ed6230f5f-test OF [16384] (*1) # dm reload test OFW [16384] (*1) # dm resume test OFW [16384] (*1) # test: Stacking NODE_ADD (253,1) 0:0 0600 [verify_udev] # test: Stacking NODE_READ_AHEAD 256 (flags=1) # Udev cookie 0xd4db383 (semid 2785282) decremented to 1 # Udev cookie 0xd4db383 (semid 2785282) waiting for zero # Udev cookie 0xd4db383 (semid 2785282) destroyed # test: Processing NODE_ADD (253,1) 0:0 0600 [verify_udev] # test: Processing NODE_READ_AHEAD 256 (flags=1) # test (253:1): read ahead is 256 # test: retaining kernel read ahead of 256 (requested 256) # Releasing crypt device test.img context. # Releasing device-mapper backend. # Closed loop /dev/loop1 (test.img). # Unlocking memory. Command successful. This is Arch Linux ARM for the Raspberry Pi 2: > uname -a Linux rpi2 3.18.7-5-ARCH #1 SMP PREEMPT Wed Feb 18 20:56:17 MST 2015 armv7l GNU/Linux Packages involved (tell me what else you need): > pacman -Qi cryptsetup Name : cryptsetup Version : 1.6.6-1 > pacman -Qi libgcrypt Name : libgcrypt Version : 1.6.2-1 _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
