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[debbugs-tracker] bug#19030: closed (parted 2.3 fails to detect GPT part

From: GNU bug Tracking System
Subject: [debbugs-tracker] bug#19030: closed (parted 2.3 fails to detect GPT partitions (HP Itanium))
Date: Thu, 13 Nov 2014 20:44:02 +0000 
Your message dated Thu, 13 Nov 2014 15:43:40 -0500
with message-id <address@hidden>
and subject line Re: bug#19030: parted 2.3 fails to detect GPT partitions (HP 
Itanium)
has caused the debbugs.gnu.org bug report #19030,
regarding parted 2.3 fails to detect GPT partitions (HP Itanium)
to be marked as done.

(If you believe you have received this mail in error, please contact
address@hidden)


-- 
19030: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=19030
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: parted 2.3 fails to detect GPT partitions (HP Itanium) Date: Wed, 12 Nov 2014 16:11:22 +0100 
Hello,

after having created a new GPT partitioning on a HP rx6600 (that is going to 
retire), trying to install Linux failed, because the partitioning is not 
detected by parted 2.3 (the version used in the SLES11 SP3 installation):
---
Rescue:~ # parted /dev/sda
GNU Parted 2.3
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print
Error: Both the primary and backup GPT tables are corrupt.  Try making a fresh
table, and using Parted's rescue feature to recover partitions.
Sector size (logical/physical): 512B/512B
(parted) version

GNU Parted 2.3
(parted) quit
---

Dumping the first 10 sectors of the disk seemed to indicate a GPT partiotion 
table, however:
---
Rescue:~ # dd if=/dev/sda bs=512 count=10 of=mbr10
10+0 records in
10+0 records out
5120 bytes (5.1 kB) copied, 0.00399801 s, 1.3 MB/s
Rescue:~ # hexdump -C mbr10
00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001b0  00 00 00 00 00 00 00 00  00 00 36 ad ab e6 00 01  |..........6.....|
000001c0  00 00 ee ff ff ff 01 00  00 00 ff ff ff ff 00 00  |................|
000001d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
00000200  45 46 49 20 50 41 52 54  00 00 01 00 5c 00 00 00  |EFI PART....\...|
00000210  41 f5 c1 6f 00 00 00 00  01 00 00 00 00 00 00 00  |A..o............|
00000220  ff ff 7b 08 00 00 00 00  40 00 00 00 00 00 00 00  |address@hidden|
00000230  bf ff 7b 08 00 00 00 00  90 ad ab e6 5c 6a e4 11  |..{.........\j..|
00000240  80 00 d6 21 7b 60 e5 88  02 00 00 00 00 00 00 00  |...!{`..........|
00000250  0c 00 00 00 80 00 00 00  90 a3 f9 e5 00 00 00 00  |................|
00000260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000400  28 73 2a c1 1f f8 d2 11  ba 4b 00 a0 c9 3e c9 3b  |(s*......K...>.;|
00000410  9c b0 ab e6 5c 6a e4 11  80 00 d6 21 7b 60 e5 88  |....\j.....!{`..|
00000420  40 00 00 00 00 00 00 00  ff 9f 0f 00 00 00 00 00  |@...............|
00000430  00 00 00 00 00 00 00 00  45 00 46 00 49 00 00 00  |........E.F.I...|
00000440  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000480  1e 4c 89 75 eb 3a d3 11  b7 c1 7b 03 a0 00 00 00  |.L.u.:....{.....|
00000490  d8 b0 ab e6 5c 6a e4 11  80 00 d6 21 7b 60 e5 88  |....\j.....!{`..|
000004a0  00 a0 0f 00 00 00 00 00  ff 77 6f 08 00 00 00 00  |.........wo.....|
000004b0  00 00 00 00 00 00 00 00  48 00 50 00 2d 00 55 00  |........H.P.-.U.|
000004c0  58 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |X...............|
000004d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00000500  28 e7 a1 e2 e3 32 d6 11  a6 82 7b 03 a0 00 00 00  |(....2....{.....|
00000510  ec b0 ab e6 5c 6a e4 11  80 00 d6 21 7b 60 e5 88  |....\j.....!{`..|
00000520  00 78 6f 08 00 00 00 00  ff f7 7b 08 00 00 00 00  |.xo.......{.....|
00000530  00 00 00 00 00 00 00 00  48 00 50 00 20 00 44 00  |........H.P. .D.|
00000540  69 00 61 00 67 00 6e 00  6f 00 73 00 74 00 69 00  |i.a.g.n.o.s.t.i.|
00000550  63 00 73 00 00 00 00 00  00 00 00 00 00 00 00 00  |c.s.............|
00000560  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
00001400
Rescue:~ #
---

At the time (7 years ago) when we were using HP-UX (and GPT) I once had a 
problem with GPT, and GNU parted of that time also had failed to recognize the 
partitions. At that tiome I had begun to write my own partition GPT checker 
(which I never completed due to lack of test systems).

I recompiled my old HP-UX Itanium code for SLES x86, and it seems the GPT 
partitioning is mostly valid, according to my program (I couldn't connect the 
73GB disk, so I only used an image of the first 100 sectors; this is why 
checking the backup table at the end failed). I guess you can figure out what 
the output means:
---
~/src/C/GPT/x86_64-any-sles11> ./gptutil ../mbr100
Disk ../mbr100
Protective MBR:
MBR failed test "is Protective MBR" at level 0/2
Found invalid Protective MBR
    MBR Signature     =55 aa
    Unique Signature  =36adabe60001
    Partition 1:
        Boot Indicator:   non-bootable
        Starting Head     =         1
        Starting Sector   =         0
        Starting Cylinder =         0
        System ID         =      0xee
        Ending Head       =       255
        Ending Sector     =        63
        Ending Cylinder   =      1023
        Relative Sectors  =         1
        Total Sectors     =MAX (>= 2TB)
    GPT Header at LBA 1:
    EFI Signature               =OK
    Revision                    =1.0 (0x00010000)
    Header Size                 =92
    CRC Checksum                =0x6fc1f541
    Primary LBA                 =                   1
    Backup LBA                  =           142344191
    First Usable LBA            =                  64
    Last Usable LBA             =           142344127
    Disk GUID                   =e6abad90-6a5c-11e4-8000-d6217b60e588
    Partition Entry LBA         =                   2
    Number of Partition Entries =12
    Size of Partition Entry     =128
    Partition Entry Array CRC32 =0xe5f9a390
    Partition Entry             =  1
        Partition Type GUID         =c12a7328-f81f-11d2-ba4b-00a0c93ec93b
        Partition Entry GUID        =e6abb09c-6a5c-11e4-8000-d6217b60e588
        Starting LBA                =                  64
        Ending LBA                  =             1023999
        Attribute Bits              =  0x0000000000000000
        Partition Name              =EFI 0000 0000 0000 0000 0000 0000 0000 
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
    Partition Entry             =  2
        Partition Type GUID         =75894c1e-3aeb-11d3-b7c1-7b03a0000000
        Partition Entry GUID        =e6abb0d8-6a5c-11e4-8000-d6217b60e588
        Starting LBA                =             1024000
        Ending LBA                  =           141522943
        Attribute Bits              =  0x0000000000000000
        Partition Name              =HP-UX 0000 0000 0000 0000 0000 0000 0000 
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 
0000 0000 0000 0000 0000 0000 0000 0000
    Partition Entry             =  3
        Partition Type GUID         =e2a1e728-32e3-11d6-a682-7b03a0000000
        Partition Entry GUID        =e6abb0ec-6a5c-11e4-8000-d6217b60e588
        Starting LBA                =           141522944
        Ending LBA                  =           142342143
        Attribute Bits              =  0x0000000000000000
        Partition Name              =HP Diagnostics 0000 0000 0000 0000 0000 
0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 
0000
    Partition Entry             =  4
        Partition Type GUID         =Unused
    Partition Entry             =  5
        Partition Type GUID         =Unused
    Partition Entry             =  6
        Partition Type GUID         =Unused
    Partition Entry             =  7
        Partition Type GUID         =Unused
    Partition Entry             =  8
        Partition Type GUID         =Unused
    Partition Entry             =  9
        Partition Type GUID         =Unused
    Partition Entry             = 10
        Partition Type GUID         =Unused
    Partition Entry             = 11
        Partition Type GUID         =Unused
    Partition Entry             = 12
        Partition Type GUID         =Unused
Trying to read() 512 bytes at 72880225792 returned 0: short read
Scanning for Backup GPT Header...
Trying to read() 512 bytes at 72880225280 returned 0: short read
Trying to read() 512 bytes at 72880224768 returned 0: short read
[...]
---

Please have a look what is broken in parted, and why it cannot provide better 
diagnostics. I had my GPT documentation from UEFI specs, Wikipedia (maybe), and 
some Microsoft tech papers...

Regards,
Ulrich

--- End Message ---
--- Begin Message --- Subject: Re: bug#19030: parted 2.3 fails to detect GPT partitions (HP Itanium) Date: Thu, 13 Nov 2014 15:43:40 -0500 User-agent: Mozilla/5.0 (Windows NT 6.1; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 11/12/2014 10:11 AM, Ulrich Windl wrote:
> Hello,
> 
> after having created a new GPT partitioning on a HP rx6600 (that
> is going to retire), trying to install Linux failed, because the 
> partitioning is not detected by parted 2.3 (the version used in
> the SLES11 SP3 installation):

parted 2.3 is very old and unsupported here.  Your table seems to be
recognized fine to me with parted 3.2, so I'd say upgrade.

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--- End Message ---
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