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Old 06-22-2012, 07:54 AM   #1
tux_mind
LQ Newbie
 
Registered: Apr 2012
Distribution: gentoo
Posts: 9

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multi OS USB stick


Hi all.
i'm working on a bootable USB stick that contain:
-/boot
-backtrack5 ( on LUKS )
-win7 installer
-data

backtrack5 on LUKS is yet done and boot up fine.
boot contains bt5 boot files ( kernel etc.. )
data contains not critical information and files.

my problem is the win7 installer, i can boot it up but it shows this error:
"CD/DVD device driver missing..."

the usb stick is a 64GB USB 3.0 partitioned as follow:

Code:
Disk /dev/sdd: 64.0 GB, 64021856256 bytes                                                                                            
64 heads, 32 sectors/track, 61056 cylinders, total 125042688 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                                                                                    
Disk identifier: 0x0003ef35                                                                                                          
                                                                                                                                     
   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1        42973184   125042687    41034752    7  HPFS/NTFS/exFAT
/dev/sdd2        32485376    42973183     5243904    7  HPFS/NTFS/exFAT
/dev/sdd3         1026048    32485375    15729664   83  Linux
/dev/sdd4   *          32     1026047      513008   83  Linux

Partition table entries are not in disk order
partitions are allocated in reverse order for allow windows to see the data partition.

Code:
/dev/sdd1 -> data
/dev/sdd2 -> win7
/dev/sdd3 -> LUKS ( bt5 )
/dev/sdd4 -> /boot
there is any grub related option to give for get it working or it's another damned microsoft problem ?? ( i've tried to use both USB 2.0 and 3.0 controllers )

thanks in advance,
tux_mind.
 
Old 06-22-2012, 01:38 PM   #2
jefro
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Put the windows as the first partition I'd think.
 
Old 06-24-2012, 07:10 AM   #3
tux_mind
LQ Newbie
 
Registered: Apr 2012
Distribution: gentoo
Posts: 9

Original Poster
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putting the win7 partition as first worked, but i cannot see the data partition from windows, it see only the win7 one.

Code:
   Device Boot      Start         End      Blocks   Id  System                                                                       
/dev/sdd1        32485376    42973183     5243904    7  HPFS/NTFS/exFAT                                                              
/dev/sdd2        42973184   125042687    41034752    7  HPFS/NTFS/exFAT                                                              
/dev/sdd3         1026048    32485375    15729664   83  Linux                                                                        
/dev/sdd4   *          32     1026047      513008   83  Linux
Code:
/dev/sdd1 -> win7_installer
/dev/sdd2 -> data
/dev/sdd3 -> LUKS ( bt5 )
/dev/sdd4 -> /boot
why winzozz see only the first partition? maybe for the reverse mapping? ( look at the start block of each partition )
the only thing i can think is... M$ always causes me problems!

anyone known how winzozz read partition tables??
 
Old 06-24-2012, 10:18 AM   #4
tux_mind
LQ Newbie
 
Registered: Apr 2012
Distribution: gentoo
Posts: 9

Original Poster
Rep: Reputation: Disabled
just for testing i've also tried another USB stick with this partitions and empty filesystems ( the FS exist but there is no files inside. ):

Code:
   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1            2048     4196351     2097152    7  HPFS/NTFS/exFAT
/dev/sdd2         4196352     8390655     2097152    7  HPFS/NTFS/exFAT
/dev/sdd3         8390656    12584959     2097152   83  Linux
/dev/sdd4   *    12584960    15826943     1620992   83  Linux
Code:
/dev/sdd1 -> win7_installer
/dev/sdd2 -> data
/dev/sdd3 -> LUKS ( bt5 )
/dev/sdd4 -> /boot
partition are mapped "correctly", not in reverse or spread order, but winzozz see only the first one ( win7_installer ).
/dev/sdd1 and /dev/sdd2 are both ntfs filesystems make with mkntfs v2012.1.15 .

really windows cannot see more then one partition on a USB stick ???
 
Old 06-24-2012, 10:32 AM   #5
tux_mind
LQ Newbie
 
Registered: Apr 2012
Distribution: gentoo
Posts: 9

Original Poster
Rep: Reputation: Disabled
ok, now i've figured out that windows are not capable to see more then one partition on removable devices......
there is a lot of threads on this, simply search on google and there is a tons of people having this issue....
http://superuser.com/questions/39117...ives-to-bootit
why M$ ??? whyyyyyy?????
uff!
linux 4 life!
 
Old 06-24-2012, 12:29 PM   #6
jefro
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Sorry, I knew that but I assumed you knew it too.

Yes, unless you change how the OS sees that usb as removable to normal storage you can't get MS to see the later partitions. Some programs might allow you to change the usb to a hard drive reported. I think it is a flip bit application.
 
  


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