label-id and sfdisk problem

label-id and sfdisk problem

[Bartłomiej Solarz-Niesłuchowski]

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Dear List,

I have problem with setting label-id of dos partition table
The problem occurs when i use sfdisk:
1. I "save" the partition table with sfdisk -d /dev/sda > saved.table 
(saved file has label-id of partition table)
2. then i restore this via sfdisk /dev/sda < saved.table
BUT
label-id of dos partition table can be changed in this operation e.g.:
when i run command such:
sfdisk -d /dev/sda > saved.table
sfdisk /dev/sda < saved.table
sfdisk -d /dev/sda
sfdisk /dev/sda < saved.table
sfdisk -d /dev/sda
sfdisk /dev/sda < saved.table
sfdisk -d /dev/sda

each time when i restore partition table label-id of dos type partition 
table is changed!

For me it is essential that label-id is set exactly as previous because 
after that i restore windows operationg system on this partitions and 
windows take care about label-id of boot disk partition table

Currently i use fdisk (expert option i) for setting label-id of 
partition, but why it is not possible thru sfdisk?

Best Regards

-- 
Bartłomiej Solarz-Niesłuchowski, Administrator WSISiZ
e-mail: Bartlomiej.Solarz-Niesluchowski@wit.edu.pl
tel. 223486547, fax 223486501
JID: solarz@jabber.wit.edu.pl
01-447 Warszawa, ul. Newelska 6, pokój 404, pon.-pt. 8-16
Motto - Jak sobie pościelisz tak sie wyśpisz



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Re: label-id and sfdisk problem

[Karel Zak]

On Tue, Feb 21, 2017 at 05:31:25PM +0100, Bartłomiej Solarz-Niesłuchowski wrote:
> Dear List,
> 
> I have problem with setting label-id of dos partition table
> The problem occurs when i use sfdisk:
> 1. I "save" the partition table with sfdisk -d /dev/sda > saved.table (saved
> file has label-id of partition table)
> 2. then i restore this via sfdisk /dev/sda < saved.table
> BUT
> label-id of dos partition table can be changed in this operation e.g.:
> when i run command such:
> sfdisk -d /dev/sda > saved.table
> sfdisk /dev/sda < saved.table
> sfdisk -d /dev/sda
> sfdisk /dev/sda < saved.table
> sfdisk -d /dev/sda
> sfdisk /dev/sda < saved.table
> sfdisk -d /dev/sda
> 
> each time when i restore partition table label-id of dos type partition
> table is changed!
> 
> For me it is essential that label-id is set exactly as previous because
> after that i restore windows operationg system on this partitions and
> windows take care about label-id of boot disk partition table
> 
> Currently i use fdisk (expert option i) for setting label-id of partition,
> but why it is not possible thru sfdisk?

Version? I'm not able to reproduce this problem (v2.28.2 as well as
upstream tree with incoming v2.30).
    
       Karel


# modprobe scsi_debug dev_size_mb=100;
# echo ',,L' | sfdisk  /dev/sdc

        Disk /dev/sdc: 100 MiB, 104857600 bytes, 204800 sectors
        Units: sectors of 1 * 512 = 512 bytes
        Sector size (logical/physical): 512 bytes / 512 bytes
        I/O size (minimum/optimal): 512 bytes / 524288 bytes

        >>> Created a new DOS disklabel with disk identifier 0x6061f502.
        Created a new partition 1 of type 'Linux' and of size 99 MiB.
        /dev/sdc2:
        New situation:

        Device     Boot Start    End Sectors Size Id Type
        /dev/sdc1        2048 204799  202752  99M 83 Linux

# sfdisk -d /dev/sdc > saved
# cat saved

        label: dos
        label-id: 0x6061f502
        device: /dev/sdc
        unit: sectors

        /dev/sdc1 : start=        2048, size=      202752, type=83


# sfdisk  /dev/sdc < saved

        Disk /dev/sdc: 100 MiB, 104857600 bytes, 204800 sectors
        Units: sectors of 1 * 512 = 512 bytes
        Sector size (logical/physical): 512 bytes / 512 bytes
        I/O size (minimum/optimal): 512 bytes / 524288 bytes
        Disklabel type: dos
        Disk identifier: 0x6061f502

        Old situation:

        Device     Boot Start    End Sectors Size Id Type
        /dev/sdc1        2048 204799  202752  99M 83 Linux

        >>> Script header accepted.
        >>> Script header accepted.
        >>> Script header accepted.
        >>> Script header accepted.
        >>> Created a new DOS disklabel with disk identifier 0x6061f502.
        Created a new partition 1 of type 'Linux' and of size 99 MiB.
        /dev/sdc2: 
        New situation:

        Device     Boot Start    End Sectors Size Id Type
        /dev/sdc1        2048 204799  202752  99M 83 Linux

# sfdisk -d /dev/sdc 

        label: dos
        label-id: 0x6061f502
        device: /dev/sdc
        unit: sectors

        /dev/sdc1 : start=        2048, size=      202752, type=83


> 
> Best Regards
> 
> -- 
> Bartłomiej Solarz-Niesłuchowski, Administrator WSISiZ
> e-mail: Bartlomiej.Solarz-Niesluchowski@wit.edu.pl
> tel. 223486547, fax 223486501
> JID: solarz@jabber.wit.edu.pl
> 01-447 Warszawa, ul. Newelska 6, pokój 404, pon.-pt. 8-16
> Motto - Jak sobie pościelisz tak sie wyśpisz
> 
> 



-- 
 Karel Zak  <kzak@redhat.com>
 http://karelzak.blogspot.com

Re: label-id and sfdisk problem

[Bartłomiej Solarz-Niesłuchowski]

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W dniu 2017-02-21 o 17:49, Karel Zak pisze:
> On Tue, Feb 21, 2017 at 05:31:25PM +0100, Bartłomiej Solarz-Niesłuchowski wrote:
>> Dear List,
>>
>> I have problem with setting label-id of dos partition table
>> The problem occurs when i use sfdisk:
>> 1. I "save" the partition table with sfdisk -d /dev/sda > saved.table (saved
>> file has label-id of partition table)
>> 2. then i restore this via sfdisk /dev/sda < saved.table
>> BUT
>> label-id of dos partition table can be changed in this operation e.g.:
>> when i run command such:
>> sfdisk -d /dev/sda > saved.table
>> sfdisk /dev/sda < saved.table
>> sfdisk -d /dev/sda
>> sfdisk /dev/sda < saved.table
>> sfdisk -d /dev/sda
>> sfdisk /dev/sda < saved.table
>> sfdisk -d /dev/sda
>>
>> each time when i restore partition table label-id of dos type partition
>> table is changed!
>>
>> For me it is essential that label-id is set exactly as previous because
>> after that i restore windows operationg system on this partitions and
>> windows take care about label-id of boot disk partition table
>>
>> Currently i use fdisk (expert option i) for setting label-id of partition,
>> but why it is not possible thru sfdisk?
> Version? I'm not able to reproduce this problem (v2.28.2 as well as
> upstream tree with incoming v2.30).
root@sysresccd /mnt % sfdisk /dev/sdb < henwar.2017.sdb.sfdisk
Checking that no-one is using this disk right now ... OK

Disk /dev/sdb: 489.1 GiB, 525112713216 bytes, 1025610768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

 >>> Script header accepted.
 >>> Script header accepted.
 >>> Script header accepted.
 >>> Script header accepted.
 >>> Created a new DOS disklabel with disk identifier 0x1f257e1a.
Created a new partition 1 of type 'W95 FAT32 (LBA)' and of size 500 MiB.
/dev/sdb2: Created a new partition 2 of type 'HPFS/NTFS/exFAT' and of 
size 488.6 GiB.
/dev/sdb3:
New situation:

Device     Boot   Start        End    Sectors   Size Id Type
/dev/sdb1  *       2048    1026047    1024000   500M  c W95 FAT32 (LBA)
/dev/sdb2       1026048 1025607679 1024581632 488.6G  7 HPFS/NTFS/exFAT

The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.

root@sysresccd /mnt % sfdisk -d /dev/sdb
label: dos
label-id: 0x1f257e1a
device: /dev/sdb
unit: sectors

/dev/sdb1 : start=        2048, size=     1024000, type=c, bootable
/dev/sdb2 : start=     1026048, size=  1024581632, type=7

root@sysresccd /mnt % less henwar.2017.sdb.sfdisk
label: dos
label-id: 0x908b462c
device: /dev/sdb
unit: sectors

/dev/sdb1 : start=        2048, size=     1024000, type=c, bootable
/dev/sdb2 : start=     1026048, size=  1024581632, type=7

root@sysresccd /mnt % sfdisk -v
sfdisk from util-linux 2.28.2

As you see sfdisk creates different label-id than it has in file

>      
>         Karel
>
>
> # modprobe scsi_debug dev_size_mb=100;
> # echo ',,L' | sfdisk  /dev/sdc
>
>          Disk /dev/sdc: 100 MiB, 104857600 bytes, 204800 sectors
>          Units: sectors of 1 * 512 = 512 bytes
>          Sector size (logical/physical): 512 bytes / 512 bytes
>          I/O size (minimum/optimal): 512 bytes / 524288 bytes
>
>          >>> Created a new DOS disklabel with disk identifier 0x6061f502.
>          Created a new partition 1 of type 'Linux' and of size 99 MiB.
>          /dev/sdc2:
>          New situation:
>
>          Device     Boot Start    End Sectors Size Id Type
>          /dev/sdc1        2048 204799  202752  99M 83 Linux
>
> # sfdisk -d /dev/sdc > saved
> # cat saved
>
>          label: dos
>          label-id: 0x6061f502
>          device: /dev/sdc
>          unit: sectors
>
>          /dev/sdc1 : start=        2048, size=      202752, type=83
>
>
> # sfdisk  /dev/sdc < saved
>
>          Disk /dev/sdc: 100 MiB, 104857600 bytes, 204800 sectors
>          Units: sectors of 1 * 512 = 512 bytes
>          Sector size (logical/physical): 512 bytes / 512 bytes
>          I/O size (minimum/optimal): 512 bytes / 524288 bytes
>          Disklabel type: dos
>          Disk identifier: 0x6061f502
>
>          Old situation:
>
>          Device     Boot Start    End Sectors Size Id Type
>          /dev/sdc1        2048 204799  202752  99M 83 Linux
>
>          >>> Script header accepted.
>          >>> Script header accepted.
>          >>> Script header accepted.
>          >>> Script header accepted.
>          >>> Created a new DOS disklabel with disk identifier 0x6061f502.
>          Created a new partition 1 of type 'Linux' and of size 99 MiB.
>          /dev/sdc2:
>          New situation:
>
>          Device     Boot Start    End Sectors Size Id Type
>          /dev/sdc1        2048 204799  202752  99M 83 Linux
>
> # sfdisk -d /dev/sdc
>
>          label: dos
>          label-id: 0x6061f502
>          device: /dev/sdc
>          unit: sectors
>
>          /dev/sdc1 : start=        2048, size=      202752, type=83
>
>
>> Best Regards
>>
>> -- 
>> Bartłomiej Solarz-Niesłuchowski, Administrator WSISiZ
>> e-mail: Bartlomiej.Solarz-Niesluchowski@wit.edu.pl
>> tel. 223486547, fax 223486501
>> JID: solarz@jabber.wit.edu.pl
>> 01-447 Warszawa, ul. Newelska 6, pokój 404, pon.-pt. 8-16
>> Motto - Jak sobie pościelisz tak sie wyśpisz
>>
>>
>
>


-- 
Bartłomiej Solarz-Niesłuchowski, Administrator WSISiZ
e-mail: Bartlomiej.Solarz-Niesluchowski@wit.edu.pl
tel. 223486547, fax 223486501
JID: solarz@jabber.wit.edu.pl
01-447 Warszawa, ul. Newelska 6, pokój 404, pon.-pt. 8-16
Motto - Jak sobie pościelisz tak sie wyśpisz



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Re: label-id and sfdisk problem

[Bartłomiej Solarz-Niesłuchowski]

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W dniu 2017-02-21 o 17:58, Bartłomiej Solarz-Niesłuchowski pisze:
DEBUG:
root@sysresccd /mnt % export SFDISK_DEBUG=all
root@sysresccd /mnt % sfdisk /dev/sdb < henwar.2017.sdb.sfdisk
Checking that no-one is using this disk right now ... OK

Disk /dev/sdb: 489.1 GiB, 525112713216 bytes, 1025610768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x5669b38d

Old situation:

Device     Boot   Start        End    Sectors   Size Id Type
/dev/sdb1  *       2048    1026047    1024000   500M  c W95 FAT32 (LBA)
/dev/sdb2       1026048 1025607679 1024581632 488.6G  7 HPFS/NTFS/exFAT

15530: sfdisk:    PARSE: <---next-line--->
 >>> Script header accepted.
15530: sfdisk:    PARSE: <---next-line--->
 >>> Script header accepted.
15530: sfdisk:    PARSE: <---next-line--->
 >>> Script header accepted.
15530: sfdisk:    PARSE: <---next-line--->
 >>> Script header accepted.
15530: sfdisk:    PARSE: <---next-line--->
 >>> Created a new DOS disklabel with disk identifier 0xd1b2a761.
Created a new partition 1 of type 'W95 FAT32 (LBA)' and of size 500 MiB.
15530: sfdisk:    PARSE: <---next-line--->
/dev/sdb2: Created a new partition 2 of type 'HPFS/NTFS/exFAT' and of 
size 488.6 GiB.
15530: sfdisk:    PARSE: <---next-line--->
/dev/sdb3:
New situation:

Device     Boot   Start        End    Sectors   Size Id Type
/dev/sdb1  *       2048    1026047    1024000   500M  c W95 FAT32 (LBA)
/dev/sdb2       1026048 1025607679 1024581632 488.6G  7 HPFS/NTFS/exFAT

The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
15530: sfdisk:     MISC: bye! [rc=0]

DEBUG2:
15774: libfdisk:     INIT: library debug mask: 0xffff
Available "LIBFDISK_DEBUG=<name>[,...]|<mask>" debug masks:
    all      [0xffff] : info about all subsystems
    ask      [0x0010] : fdisk dialogs
    help     [0x0001] : this help
    cxt      [0x0004] : library context (handler)
    label    [0x0008] : disk label utils
    part     [0x0040] : partition utils
    parttype [0x0080] : partition type utils
    script   [0x0200] : sfdisk-like scripts
    tab      [0x0100] : table utils
15774: libfdisk:      CXT: [0x8e2f338]: alloc
15774: libfdisk:      CXT: [0x8e2f338]: assigning device /dev/sdb
15774: libfdisk:      CXT: [0x8e2f338]: *** resetting context
15774: libfdisk:      CXT: [0x8e2f338]: /dev/sdb: discovering topology...
15774: libfdisk:      CXT: [0x8e2f338]: initialize libblkid prober
15774: libfdisk:      CXT: [0x8e2f338]: result: log/phy sector size: 512/512
15774: libfdisk:      CXT: [0x8e2f338]: result: fdisk/optimal/minimal 
io: 512/0/512
15774: libfdisk:      CXT: [0x8e2f338]: /dev/sdb: discovering geometry...
15774: libfdisk:      CXT: [0x8e2f338]: total sectors: 1025610768 
(ioctl=1025610768)
15774: libfdisk:      CXT: [0x8e2f338]: result: C/H/S: 63841/255/63
15774: libfdisk:      CXT: [0x8e2f338]: initialize in-memory first 
sector buffer [sector_size=512]
15774: libfdisk:      CXT: [0x8e2f338]: reading: offset=0, size=512
15774: libfdisk:      CXT: [0x8e2f338]: probing for gpt
15774: libfdisk:    LABEL: GPT probe failed
15774: libfdisk:      CXT: [0x8e2f338]: probing for dos
15774: libfdisk:    LABEL: DOS: initialize, first sector buffer 0x8e31cd8
15774: libfdisk:    LABEL: DOS PT geometry: heads=0, sectors=0
15774: libfdisk:      CXT: [0x8e2f338]: --> switching context to dos!
15774: libfdisk:      CXT: [0x8e2f338]: appling user device properties
15774: libfdisk:      CXT: [0x8e2f338]: reseting alignment...
15774: libfdisk:      CXT: [0x8e2f338]: alignment reseted to: first 
LBA=2048, last LBA=1025610767, grain=1048576 [rc=0]
15774: libfdisk:      CXT: [0x8e2f338]: new C/H/S: 63841/255/63
15774: libfdisk:      CXT: [0x8e2f338]: new log/phy sector size: 512/512
15774: libfdisk:      CXT: [0x8e2f338]: initialized for /dev/sdb 
[READ-WRITE]
15774: libfdisk:   SCRIPT: [0x8e31ee0]: alloc
15774: libfdisk:      TAB: [0x8e2f0d8]: alloc
15774: libfdisk:      CXT: [0x8e2f338]: setting reference to script 
0x8e31ee0
15774: libfdisk:      ASK: [0x8e31f78]: alloc
15774: libfdisk:      ASK: [0x8e31f78]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31f78]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31f78]: reset
15774: libfdisk:      ASK: [0x8e31f78]: free
15774: libfdisk:      ASK: [0x8e31f10]: alloc
15774: libfdisk:      ASK: [0x8e31f10]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31f10]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31f10]: reset
15774: libfdisk:      ASK: [0x8e31f10]: free
15774: libfdisk:      ASK: [0x8e31fa8]: alloc
15774: libfdisk:      ASK: [0x8e31fa8]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31fa8]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31fa8]: reset
15774: libfdisk:      ASK: [0x8e31fa8]: free
15774: libfdisk:      ASK: [0x8e31fb8]: alloc
15774: libfdisk:      ASK: [0x8e31fb8]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31fb8]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31fb8]: reset
15774: libfdisk:      ASK: [0x8e31fb8]: free
15774: libfdisk:      ASK: [0x8e31f10]: alloc
15774: libfdisk:      ASK: [0x8e31f10]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31f10]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31f10]: reset
15774: libfdisk:      ASK: [0x8e31f10]: free
15774: libfdisk:      CXT: [0x8e2f338]: asking for disk dos ID
15774: libfdisk:      CXT: [0x8e2f338]: asking for disk dos item 0
15774: libfdisk:      ASK: [0x8e31f10]: alloc
15774: libfdisk:      ASK: [0x8e31f10]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31f10]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31f10]: reset
15774: libfdisk:      ASK: [0x8e31f10]: free
15774: libfdisk:      ASK: [0x8e31f10]: alloc
15774: libfdisk:      ASK: [0x8e31f10]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e31f10]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e31f10]: reset
15774: libfdisk:      ASK: [0x8e31f10]: free
15774: libfdisk:      CXT: [0x8e2f338]:  -- get table --
15774: libfdisk:      TAB: [0x8e2f150]: alloc
15774: libfdisk:     PART: [0x8e31f98]: alloc
15774: libfdisk:      TAB: [0x8e2f150]: add entry 0x8e31f98 [start=2048, 
end=1026047, size=1024000,   primary]
15774: libfdisk:     PART: [0x8e32038]: alloc
15774: libfdisk:      TAB: [0x8e2f150]: add entry 0x8e32038 
[start=1026048, end=1025607679, size=1024581632,   primary]
15774: libfdisk:      ASK: [0x8e327b8]: alloc
15774: libfdisk:      ASK: [0x8e327b8]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e327b8]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e327b8]: reset
15774: libfdisk:      ASK: [0x8e327b8]: free
15774: libfdisk:      TAB: [0x8e2f150]: wrong older check
15774: libfdisk:      TAB: [0x8e2f150]: reset
15774: libfdisk:      TAB: [0x8e2f150]: remove entry 0x8e31f98
15774: libfdisk:     PART: [0x8e31f98]: reset
15774: libfdisk:     PART: [0x8e31f98]: free
15774: libfdisk:      TAB: [0x8e2f150]: remove entry 0x8e32038
15774: libfdisk:     PART: [0x8e32038]: reset
15774: libfdisk:     PART: [0x8e32038]: free
15774: libfdisk:      TAB: [0x8e2f150]: free
15774: libfdisk:   SCRIPT: [0x8e31ee0]: setting new header label='dos'
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 0
15774: libfdisk:   SCRIPT: [0x8e31ee0]:   parsing buffer
15774: libfdisk:   SCRIPT: [0x8e31ee0]:    parse header 'label: dos'
15774: libfdisk:   SCRIPT: [0x8e31ee0]: update 'label' header 'dos' -> 'dos'
15774: libfdisk:      ASK: [0x8e32380]: alloc
15774: libfdisk:      ASK: [0x8e32380]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32380]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32380]: reset
15774: libfdisk:      ASK: [0x8e32380]: free
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 1
15774: libfdisk:   SCRIPT: [0x8e31ee0]:   parsing buffer
15774: libfdisk:   SCRIPT: [0x8e31ee0]:    parse header 'label-id: 
0x908b462c'
15774: libfdisk:   SCRIPT: [0x8e31ee0]: setting new header 
label-id='0x908b462c'
15774: libfdisk:      ASK: [0x8e32470]: alloc
15774: libfdisk:      ASK: [0x8e32470]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32470]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32470]: reset
15774: libfdisk:      ASK: [0x8e32470]: free
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 2
15774: libfdisk:   SCRIPT: [0x8e31ee0]:   parsing buffer
15774: libfdisk:   SCRIPT: [0x8e31ee0]:    parse header 'device: /dev/sdb'
15774: libfdisk:   SCRIPT: [0x8e31ee0]: setting new header device='/dev/sdb'
15774: libfdisk:      ASK: [0x8e32308]: alloc
15774: libfdisk:      ASK: [0x8e32308]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32308]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32308]: reset
15774: libfdisk:      ASK: [0x8e32308]: free
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 3
15774: libfdisk:   SCRIPT: [0x8e31ee0]:   parsing buffer
15774: libfdisk:   SCRIPT: [0x8e31ee0]:    parse header 'unit: sectors'
15774: libfdisk:   SCRIPT: [0x8e31ee0]: setting new header unit='sectors'
15774: libfdisk:      ASK: [0x8e32398]: alloc
15774: libfdisk:      ASK: [0x8e32398]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32398]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32398]: reset
15774: libfdisk:      ASK: [0x8e32398]: free
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 4
15774: libfdisk:   SCRIPT: [0x8e31ee0]:   parsing buffer
15774: libfdisk:   SCRIPT: [0x8e31ee0]:    parse script line: '/dev/sdb1 
: start=        2048, size=     1024000, type=c, bootable'
15774: libfdisk:     PART: [0x8e31f98]: alloc
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' start= 2048, 
size=     1024000, type=c, bootable'
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' size= 1024000, 
type=c, bootable'
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' type=c, bootable'
15774: libfdisk:   SCRIPT: [0x8e31ee0]: label 'dos'
15774: libfdisk:    LABEL: [0x8e2f438]: parsing 'c' (dos) partition type
15774: libfdisk: PARTTYPE: [0xf774985c]: returns parsed 'W95 FAT32 
(LBA)' [] partition type
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' bootable'
15774: libfdisk:      TAB: [0x8e2f0d8]: add entry 0x8e31f98 [start=2048, 
end=1026047, size=1024000,   primary]
15774: libfdisk:   SCRIPT: [0x8e31ee0]: applying script headers
15774: libfdisk:      CXT: [0x8e2f338]: setting reference to script 
0x8e31ee0
15774: libfdisk:      CXT: [0x8e2f338]: --> switching context to dos!
15774: libfdisk:      CXT: [0x8e2f338]: *** reseting device properties
15774: libfdisk:      CXT: [0x8e2f338]: /dev/sdb: discovering topology...
15774: libfdisk:      CXT: [0x8e2f338]: initialize libblkid prober
15774: libfdisk:      CXT: [0x8e2f338]: result: log/phy sector size: 512/512
15774: libfdisk:      CXT: [0x8e2f338]: result: fdisk/optimal/minimal 
io: 512/0/512
15774: libfdisk:      CXT: [0x8e2f338]: /dev/sdb: discovering geometry...
15774: libfdisk:      CXT: [0x8e2f338]: total sectors: 1025610768 
(ioctl=1025610768)
15774: libfdisk:      CXT: [0x8e2f338]: result: C/H/S: 63841/255/63
15774: libfdisk:      CXT: [0x8e2f338]: zeroize in-memory first sector 
buffer
15774: libfdisk:      CXT: [0x8e2f338]: reading: offset=0, size=512
15774: libfdisk:      CXT: [0x8e2f338]: appling user device properties
15774: libfdisk:      CXT: [0x8e2f338]: reseting alignment...
15774: libfdisk:      CXT: [0x8e2f338]: alignment reseted to: first 
LBA=2048, last LBA=1025610767, grain=1048576 [rc=0]
15774: libfdisk:      CXT: [0x8e2f338]: new C/H/S: 63841/255/63
15774: libfdisk:      CXT: [0x8e2f338]: new log/phy sector size: 512/512
15774: libfdisk:      CXT: [0x8e2f338]: create a new dos label
15774: libfdisk:    LABEL: DOS: creating new disklabel
15774: libfdisk:      CXT: [0x8e2f338]: zeroize in-memory first sector 
buffer
15774: libfdisk:      CXT: [0x8e2f338]: first sector protection enabled 
-- re-reading
15774: libfdisk:      CXT: [0x8e2f338]: reading: offset=0, size=440
15774: libfdisk:    LABEL: DOS: initialize, first sector buffer 0x8e31cd8
15774: libfdisk:      ASK: [0x8e32398]: alloc
15774: libfdisk:      ASK: [0x8e32398]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32398]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32398]: reset
15774: libfdisk:      ASK: [0x8e32398]: free
15774: libfdisk:      CXT: [0x8e2f338]: adding new partition 0x8e31f98 
(start=2048, end=1026047, size=1024000, defaults(start=no, end=no, 
partno=no)
15774: libfdisk:    LABEL: DOS: new partition wanted
15774: libfdisk:     PART: [0x8e31f98]: next partno (specified=0)
15774: libfdisk:    LABEL: DOS: adding partition 0
15774: libfdisk:    LABEL: DOS: last possible sector for #0 is 1025610767
15774: libfdisk:      CXT: [0x8e2f338]: LBA 2048 -unchanged-
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1025610767 -aligned-down-> 
1025609728 [grain=2048s]
15774: libfdisk:      CXT: [0x8e2f338]: LBA 2048 -unchanged-
15774: libfdisk:      CXT: [0x8e2f338]: LBA 2048 
range:<2048..1025609728>, result: 2048
15774: libfdisk:    LABEL: DOS: start: wanted=2048, low=2048, 
limit=1025610767
15774: libfdisk:    LABEL: DOS: start is 2048
15774: libfdisk:    LABEL: DOS: last possible sector for #0 is 1025610767
15774: libfdisk:    LABEL: DOS: unused sector for #0 is 1025610767
15774: libfdisk:    LABEL: DOS: raw stop: 1026047
15774: libfdisk:    LABEL: DOS: setting partition 0, offset=0, 
start=2048, size=1024000, sysid=0c
15774: libfdisk:    LABEL: DOS: setting 0 partition to changed
15774: libfdisk:      ASK: [0x8e32470]: alloc
15774: libfdisk:      ASK: [0x8e32470]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32470]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32470]: reset
15774: libfdisk:      ASK: [0x8e32470]: free
15774: libfdisk:      CXT: [0x8e2f338]: add partition done (rc=0)
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 6
15774: libfdisk:   SCRIPT: [0x8e31ee0]:   parsing buffer
15774: libfdisk:   SCRIPT: [0x8e31ee0]:    parse script line: '/dev/sdb2 
: start=     1026048, size=  1024581632, type=7'
15774: libfdisk:     PART: [0x8e32038]: alloc
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' start= 1026048, 
size=  1024581632, type=7'
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' size= 1024581632, type=7'
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing ' type=7'
15774: libfdisk:    LABEL: [0x8e2f438]: parsing '7' (dos) partition type
15774: libfdisk: PARTTYPE: [0xf77497f8]: returns parsed 
'HPFS/NTFS/exFAT' [] partition type
15774: libfdisk:      TAB: [0x8e2f0d8]: add entry 0x8e32038 
[start=1026048, end=1025607679, size=1024581632,   primary]
15774: libfdisk:      CXT: [0x8e2f338]: adding new partition 0x8e32038 
(start=1026048, end=1025607679, size=1024581632, defaults(start=no, 
end=no, partno=no)
15774: libfdisk:    LABEL: DOS: new partition wanted
15774: libfdisk:     PART: [0x8e32038]: next partno (specified=1)
15774: libfdisk:    LABEL: DOS: adding partition 1
15774: libfdisk:    LABEL: DOS: last possible sector for #1 is 1025610767
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1026048 -unchanged-
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1025610767 -aligned-down-> 
1025609728 [grain=2048s]
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1026048 -unchanged-
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1026048 
range:<1026048..1025609728>, result: 1026048
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1026048 -unchanged-
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1025610767 -aligned-down-> 
1025609728 [grain=2048s]
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1026048 -unchanged-
15774: libfdisk:      CXT: [0x8e2f338]: LBA 1026048 
range:<1026048..1025609728>, result: 1026048
15774: libfdisk:    LABEL: DOS: start: wanted=1026048, low=1026048, 
limit=1025610767
15774: libfdisk:    LABEL: DOS: start is 1026048
15774: libfdisk:    LABEL: DOS: last possible sector for #1 is 1025610767
15774: libfdisk:    LABEL: DOS: unused sector for #1 is 1025610767
15774: libfdisk:    LABEL: DOS: raw stop: 1025607679
15774: libfdisk:    LABEL: DOS: setting partition 1, offset=0, 
start=1026048, size=1024581632, sysid=07
15774: libfdisk:    LABEL: DOS: setting 1 partition to changed
15774: libfdisk:      ASK: [0x8e32470]: alloc
15774: libfdisk:      ASK: [0x8e32470]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32470]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32470]: reset
15774: libfdisk:      ASK: [0x8e32470]: free
15774: libfdisk:      CXT: [0x8e2f338]: add partition done (rc=0)
15774: sfdisk:    PARSE: <---next-line--->
15774: libfdisk:   SCRIPT: [0x8e31ee0]:  parsing line 7
15774: libfdisk:      ASK: [0x8e32470]: alloc
15774: libfdisk:      ASK: [0x8e32470]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32470]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32470]: reset
15774: libfdisk:      ASK: [0x8e32470]: free
15774: libfdisk:      CXT: [0x8e2f338]:  -- get table --
15774: libfdisk:      TAB: [0x8e32358]: alloc
15774: libfdisk:     PART: [0x8e32560]: alloc
15774: libfdisk:      TAB: [0x8e32358]: add entry 0x8e32560 [start=2048, 
end=1026047, size=1024000,   primary]
15774: libfdisk:     PART: [0x8e32698]: alloc
15774: libfdisk:      TAB: [0x8e32358]: add entry 0x8e32698 
[start=1026048, end=1025607679, size=1024581632,   primary]
15774: libfdisk:      ASK: [0x8e32398]: alloc
15774: libfdisk:      ASK: [0x8e32398]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32398]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32398]: reset
15774: libfdisk:      ASK: [0x8e32398]: free
15774: libfdisk:      TAB: [0x8e32358]: wrong older check
15774: libfdisk:      TAB: [0x8e32358]: reset
15774: libfdisk:      TAB: [0x8e32358]: remove entry 0x8e32560
15774: libfdisk:     PART: [0x8e32560]: reset
15774: libfdisk:     PART: [0x8e32560]: free
15774: libfdisk:      TAB: [0x8e32358]: remove entry 0x8e32698
15774: libfdisk:     PART: [0x8e32698]: reset
15774: libfdisk:     PART: [0x8e32698]: free
15774: libfdisk:      TAB: [0x8e32358]: free
15774: libfdisk:    LABEL: DOS: write PT requested [label-changed: 1, 
non-pt-changed: 1]
15774: libfdisk:    LABEL: DOS: MBR changed, writting
15774: libfdisk:    LABEL: DOS: writting to sector 0
15774: libfdisk:      ASK: [0x8e32308]: alloc
15774: libfdisk:      ASK: [0x8e32308]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32308]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32308]: reset
15774: libfdisk:      ASK: [0x8e32308]: free
15774: libfdisk:      ASK: [0x8e32398]: alloc
15774: libfdisk:      ASK: [0x8e32398]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32398]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32398]: reset
15774: libfdisk:      ASK: [0x8e32398]: free
15774: libfdisk:      ASK: [0x8e32308]: alloc
15774: libfdisk:      ASK: [0x8e32308]: do_ask for 'info'
15774: libfdisk:      ASK: [0x8e32308]: do_ask done [rc=0]
15774: libfdisk:      ASK: [0x8e32308]: reset
15774: libfdisk:      ASK: [0x8e32308]: free
15774: sfdisk:     MISC: bye! [rc=0]
Checking that no-one is using this disk right now ... OK

Disk /dev/sdb: 489.1 GiB, 525112713216 bytes, 1025610768 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x18e5ab42

Old situation:

Device     Boot   Start        End    Sectors   Size Id Type
/dev/sdb1  *       2048    1026047    1024000   500M  c W95 FAT32 (LBA)
/dev/sdb2       1026048 1025607679 1024581632 488.6G  7 HPFS/NTFS/exFAT

 >>> Script header accepted.
 >>> Script header accepted.
 >>> Script header accepted.
 >>> Script header accepted.
 >>> Created a new DOS disklabel with disk identifier 0xb8fbfff6.
Created a new partition 1 of type 'W95 FAT32 (LBA)' and of size 500 MiB.
/dev/sdb2: Created a new partition 2 of type 'HPFS/NTFS/exFAT' and of 
size 488.6 GiB.
/dev/sdb3:
New situation:

Device     Boot   Start        End    Sectors   Size Id Type
/dev/sdb1  *       2048    1026047    1024000   500M  c W95 FAT32 (LBA)
/dev/sdb2       1026048 1025607679 1024581632 488.6G  7 HPFS/NTFS/exFAT

The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.


-- 
Bartłomiej Solarz-Niesłuchowski, Administrator WSISiZ
e-mail: Bartlomiej.Solarz-Niesluchowski@wit.edu.pl
tel. 223486547, fax 223486501
JID: solarz@jabber.wit.edu.pl
01-447 Warszawa, ul. Newelska 6, pokój 404, pon.-pt. 8-16
Motto - Jak sobie pościelisz tak sie wyśpisz



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