LinuxQuestions.org - Encrypted File system issues

Hello ,
I recently installed Centos 6.2 , during the installation I used the installer Disk Manager to create '/' as encrypted file system.
Now by default , every time the system reboots I have to insert the password for opening the encrypted file system.
The problem is after I created a pass file for automatic opening of the encrypted file system , Its still askes for the password.

================

Code:

cryptsetup luksDump /dev/sda3

LUKS header information for /dev/sda3



Version:              1

Cipher name:          aes

Cipher mode:          xts-plain64

Hash spec:            sha1

Payload offset:        4096

MK bits:              512

MK digest:            71 e7 f2 6a 3f ab 60 35 33 99 fe 9c 6c cc 23 af 07 15 83 87 

MK salt:              c4 a2 d4 57 53 6a 8e b3 fd 97 a7 5d f7 aa a8 9c 

                      d6 b7 8d 06 71 7a b7 a1 e0 ff 9d de 58 41 12 13 

MK iterations:        48125

UUID:                  f2f4364c-f74f-4f18-92ce-0a3c84c406e7



Key Slot 0: ENABLED

        Iterations:                187612

        Salt:                      33 60 ff 8a 2d f1 fd 61 b3 36 32 8a 23 31 bb 6b 

                                      14 a2 28 4d 4a 9c fb f3 93 03 b8 d1 b8 a2 1e 13 

        Key material offset:        8

        AF stripes:                    4000

Key Slot 1: ENABLED

        Iterations:                190629

        Salt:                      69 1f 60 54 96 e9 f3 a2 ec 9b 94 00 9e fd c0 0c 

                                      43 0e 3b 86 91 0f a1 bc 00 c7 d8 74 ad 08 55 23 

        Key material offset:        512

        AF stripes:                    4000

Key Slot 2: DISABLED

Key Slot 3: DISABLED

Key Slot 4: DISABLED

Key Slot 5: DISABLED

Key Slot 6: DISABLED

Key Slot 7: DISABLED

================

Code:

[root@crypted ~]# cryptsetup isLuks /dev/sda3

[root@crypted ~]# mount

/dev/mapper/luks-f2f4364c-f74f-4f18-92ce-0a3c84c406e7 on / type ext4 (rw)

proc on /proc type proc (rw)

sysfs on /sys type sysfs (rw)

devpts on /dev/pts type devpts (rw,gid=5,mode=620)

tmpfs on /dev/shm type tmpfs (rw)

/dev/sda1 on /boot type ext4 (rw)

none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw)

sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw

================

This is the crypttab:

Code:

================

luks-f2f4364c-f74f-4f18-92ce-0a3c84c406e7 UUID=f2f4364c-f74f-4f18-92ce-0a3c84c406e7 /root/passfile 

================

both of the key slots are key-files , but after the boot seems like the system ignores it and all-ways asking for a password entry
I wonder if I missed something

this is grub.conf

Code:

================

default=0

timeout=5

splashimage=(hd0,0)/grub/splash.xpm.gz

hiddenmenu

title CentOS (2.6.32-279.5.1.el6.x86_64)

        root (hd0,0)

        kernel /vmlinuz-2.6.32-279.5.1.el6.x86_64 ro root=/dev/mapper/luks-f2f4364c-f74f-4f18-92ce-0a3c84c406e7 rd_LUKS_UUID=luks-f2f4364c-f74f-4f18-92ce-0a3c84c406e7 rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM

        initrd /initramfs-2.6.32-279.5.1.el6.x86_64.img

================

Please advice me :)