[bug #31843] grub doesn't work with encrypted disk (seagate momentus ST9250414ASG)

[ju]

URL:
  <http://savannah.gnu.org/bugs/?31843>

                 Summary: grub doesn't work with encrypted disk (seagate
momentus ST9250414ASG)
                 Project: GNU GRUB
            Submitted by: theju
            Submitted on: ven 10 déc 2010 08:46:13 CET
                Category: Disk &amp; Partition
                Severity: Major
                Priority: 5 - Normal
              Item Group: Software Error
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: theju
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: 1.98
         Reproducibility: Every Time
         Planned Release: None

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Details:

When crypted disk is enable grub did not recognize the disk at first boot : 

First boot, the disk preloader ask for the disk password.
After answer disk is decrypted "on the fly" but grup say : "error unknow
filesystem"

I do a crtl + alt + suppr and computer reboot with disk uncrypt. This time
grub works correctly.

Here are the infos about the disk on a dell latitude E6510 : 

ATA device, with non-removable media
        Model Number:       ST9250414ASG                            
        Serial Number:      5VG493T5
        Firmware Revision:  DED1    
        Transport:          Serial
Standards:
        Used: unknown (minor revision code 0x0029) 
        Supported: 8 7 6 5 
        Likely used: 8
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
        --
        CHS current addressable sectors:   16514064
        LBA    user addressable sectors:  268435455
        LBA48  user addressable sectors:  488397168
        Logical/Physical Sector size:           512 bytes
        device size with M = 1024*1024:      238475 MBytes
        device size with M = 1000*1000:      250059 MBytes (250 GB)
        cache/buffer size  = 16384 KBytes
        Nominal Media Rotation Rate: 7200
Capabilities:
        LBA, IORDY(can be disabled)
        Queue depth: 32
        Standby timer values: spec'd by Standard, no device specific minimum
        R/W multiple sector transfer: Max = 1   Current = ?
        Advanced power management level: 254
        Recommended acoustic management value: 208, current value: 208
        DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
             Cycle time: min=120ns recommended=120ns
        PIO: pio0 pio1 pio2 pio3 pio4 
             Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
        Enabled Supported:
           *    SMART feature set
                Security Mode feature set
           *    Power Management feature set
           *    Write cache
           *    Look-ahead
           *    Host Protected Area feature set
           *    WRITE_BUFFER command
           *    READ_BUFFER command
           *    NOP cmd
                DOWNLOAD_MICROCODE
           *    Advanced Power Management feature set
                SET_MAX security extension
           *    Automatic Acoustic Management feature set
           *    48-bit Address feature set
           *    Mandatory FLUSH_CACHE
           *    FLUSH_CACHE_EXT
           *    SMART error logging
           *    SMART self-test
           *    General Purpose Logging feature set
           *    WRITE_{DMA|MULTIPLE}_FUA_EXT
           *    WRITE_DMA_QUEUED_FUA_EXT
           *    64-bit World wide name
           *    IDLE_IMMEDIATE with UNLOAD
                Write-Read-Verify feature set
           *    WRITE_UNCORRECTABLE_EXT command
           *    {READ,WRITE}_DMA_EXT_GPL commands
           *    Segmented DOWNLOAD_MICROCODE
           *    Free-fall Control feature set
           *    Gen1 signaling speed (1.5Gb/s)
           *    Gen2 signaling speed (3.0Gb/s)
           *    Native Command Queueing (NCQ)
           *    Host-initiated interface power management
           *    Phy event counters
                Device-initiated interface power management
           *    Software settings preservation
           *    SMART Command Transport (SCT) feature set
           *    SCT Error Recovery Control (AC3)
           *    SCT Features Control (AC4)
           *    SCT Data Tables (AC5)
                unknown 206[12] (vendor specific)
Security: 
        Master password revision code = 65534
                supported
        not     enabled
        not     locked
                frozen
        not     expired: security count
                supported: enhanced erase
        54min for SECURITY ERASE UNIT. 2min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000c5002ec5476c
        NAA             : 5
        IEEE OUI        : 000c50
        Unique ID       : 02ec5476c
Checksum: correct



and my partition table : 
fdisk -l

Disque /dev/sda: 250.1 Go, 250059350016 octets
255 têtes, 63 secteurs/piste, 30401 cylindres
Unités = cylindres de 16065 * 512 = 8225280 octets
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Identifiant de disque : 0x0004f32a

Périphérique Amorce  Début        Fin      Blocs     Id  Système
/dev/sda1   *           1          13      102400    7  HPFS/NTFS
La partition 1 ne se termine pas sur une frontière de cylindre.
/dev/sda2              13       16446   131994624    7  HPFS/NTFS
/dev/sda3           16446       16932     3906560   82  Linux swap / Solaris
/dev/sda4           16932       30402   108193792   83  Linux


thanks

Juju




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