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Sorebas
October 28th, 2011, 02:06 PM
Hello, I am a newbe in here.
and i am not a native speaker, so my english is really poor.
so I hope you can understand it.

I have installed windows7 in my computer,
when I try to install ubuntu,
it says The computer currently has no detected OS.
and I can't find any problem in my way.
so I hope I can get some helps in here.


Boot Info Script 0.60 from 17 May 2011


============================= Boot Info Summary: ===============================

=> Windows is installed in the MBR of /dev/sda.

sda1: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /Boot/BCD

sda2: __________________________________________________ ________________________

File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files: /Windows/System32/winload.exe

============================ Drive/Partition Info: =============================

Drive: sda __________________________________________________ ___________________

Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders, total 3907029168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes

Partition Boot Start Sector End Sector # of Sectors Id System

/dev/sda1 * 2,048 206,847 204,800 7 NTFS / exFAT / HPFS
/dev/sda2 206,848 390,703,103 390,496,256 7 NTFS / exFAT / HPFS


GUID Partition Table detected, but does not seem to be used.

Partition Start Sector End Sector # of Sectors System

"blkid" output: __________________________________________________ ______________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 4C6E2D566E2D3A5A ntfs 시스템 예약
/dev/sda2 70E83214E831D954 ntfs

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sda1 /media/시스템 예약 fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
/dev/sda2 /media/70E83214E831D954 fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_ permissions)
/dev/sr0 /cdrom iso9660 (ro,noatime)





This disk is currently in use - repartitioning is probably a bad idea.
Umount all file systems, and swapoff all swap partitions on this disk.
Use the --no-reread flag to suppress this check.

Disk /dev/sda: 243201 cylinders, 255 heads, 63 sectors/track
Old situation:
Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End #cyls #blocks Id System
/dev/sda1 * 0+ 12- 13- 102400 7 HPFS/NTFS
/dev/sda2 12+ 24320- 24308- 195248128 7 HPFS/NTFS
/dev/sda3 0 - 0 0 0 Empty
/dev/sda4 0 - 0 0 0 Empty
Input in the following format; absent fields get a default value.
<start> <size> <type [E,S,L,X,hex]> <bootable [-,*]> <c,h,s> <c,h,s>
Usually you only need to specify <start> and <size> (and perhaps <type>).

Rubi1200
October 28th, 2011, 02:10 PM
Hi and welcome to the forums :)

It is likely that this is the problem:

GUID Partition Table detected, but does not seem to be used.The only way I know to deal with this is using a tool written by a very experienced member:
http://www.rodsbooks.com/fixparts/

Make sure you have backups before using it!

Sorebas
October 28th, 2011, 02:32 PM
sorry,
but when i type
sudo fixparts /dev/sda1 it says
sudo: fixparts: command not found.

Rubi1200
October 28th, 2011, 02:36 PM
You could try downloading and running the version for WIndows; it is the zip file on the download page.
http://sourceforge.net/projects/gptfdisk/files/gptfdisk/0.8.0/fixparts-binaries/