GRUB Bootloader not recognizing windows 8, dualbooting with Kali

[egregius]

I installed Kali on my Acer aspire V5 on a separate partition from windows 8. When I installed Kali linux, I installed Gnome at the beginning of the partition of my Kali installation. Once I installed Kali linux, for some reason the BIOS couldn't boot from my Kali partition, and when I tried to create a new entry for the windows bootloader with Kali and did lots of things but none of them let me boot Kali linux. I ended up removing the Windows bootloader entry by accident and it actually made it work, the Laptop now boots from GRUB.

My problem is that the GRUB doesn't recognize Windows 8 for some reason, and now I can't boot into Windows 8. The partition is fine, and it seems to have all of its original system files, but I just can't boot into it. I've tried to update grub by running the update-grub command but that didn't work, and I couldn't find any other solutions. I also tried to boot from the recovery partition (By holding down alt and F8 on my computer) and it went straight to the GRUB bootloader for some reason, I don't know why.

I ran the boot-info script and the results are here:

                  Boot Info Script 0.61      [1 April 2012]


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

 => Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 
    727457792 of the same hard drive for core.img. core.img is at this 
    location and looks for (,gpt7)/boot/grub on this drive.

sda1: __________________________________________________________________________

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

sda2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Unknown
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System:  
    Boot files:        

sda3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: unknown filesystem type ''

sda4: __________________________________________________________________________

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

sda5: __________________________________________________________________________

    File system:       BIOS Boot partition
    Boot sector type:  Grub2's core.img
    Boot sector info: 

sda6: __________________________________________________________________________

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

sda7: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info: 
    Mounting failed:   mount: unknown filesystem type ''
mount: /dev/sda7 already mounted or sda7 busy

sda8: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info: 

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

Drive: sda _____________________________________________________________________

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 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                   1   976,773,167   976,773,167  ee GPT


GUID Partition Table detected.

Partition    Start Sector    End Sector  # of Sectors System
/dev/sda1           2,048       821,247       819,200 Windows Recovery Environment (Windows)
/dev/sda2         821,248     1,435,647       614,400 EFI System partition
/dev/sda3       1,435,648     1,697,791       262,144 Microsoft Reserved Partition (Windows)
/dev/sda4       1,697,792   727,457,791   725,760,000 Data partition (Windows/Linux)
/dev/sda5     727,457,792   727,459,839         2,048 BIOS Boot partition
/dev/sda6     943,720,448   976,773,119    33,052,672 Windows Recovery Environment (Windows)
/dev/sda7     727,459,840   934,871,039   207,411,200 Data partition (Windows/Linux)
/dev/sda8     934,871,040   943,720,447     8,849,408 Swap partition (Linux)

"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/sda1        2E24AF3324AEFD49                       ntfs       Recovery
/dev/sda2        E6B1-5517                              vfat       ESP
/dev/sda4        0298DD6C98DD5EAB                       ntfs       Acer
/dev/sda6        5C4EB41A4EB3EAC2                       ntfs       Push Button Reset
/dev/sda7        4dc0bda4-e9f5-405d-a77a-0b18db9a7bdc   ext4       
/dev/sda8        ece97563-0526-4e3d-bc46-948921fb1ed3   swap       

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

Device           Mount_Point              Type       Options

/dev/disk/by-uuid/4dc0bda4-e9f5-405d-a77a-0b18db9a7bdc /                        ext4       (rw,relatime,errors=remount-ro,data=ordered)
/dev/sda4        /media/Acer              fuseblk    (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096)
/dev/sda6        /media/Push Button Reset fuseblk    (rw,nosuid,nodev,relatime,user_id=0,group_id=0,default_permissions,allow_other,blksize=4096)


======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown BootLoader on sda2

00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 08 5e 1b  |.X.MSDOS5.0...^.|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 88 0c 00  |........?.......|
00000020  00 60 09 00 51 02 00 00  00 00 00 00 02 00 00 00  |.`..Q...........|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 00 29 17 55 b1 e6 4e  4f 20 4e 41 4d 45 20 20  |..).U..NO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|[email protected]|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |[email protected]|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
000001e0  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  ac 01 b9 01 00 00 55 aa  |..............U.|
00000200


=============================== StdErr Messages: ===============================

xz: (stdin): Compressed data is corrupt
  No volume groups found

My Kali version is 3.4.2 with amd64 architecture, and its KDE. I've installed Kali on my Acer Aspire V5 notebook. I have secureboot and fastboot disabled and I am still running BIOS on UEFI mode.

Thank you very much for any help you can give me.

[faraaz]

HI,
well from months myself looking around but couldn't solve my problem.my question is about penetration testing KALI LINUX its a normal linux like normal my point of view i just wanted to install kali linux into my external USB HDD so that i need i can boot from my external USB HDD ok remember i am not taking about live boot.i am OK with that.i just wanted to complete install like windows.the problem comes when i make live USB PEN_DRIVE to install into my EXTERNAL USB HDD everything goes perfect with successfully but when i restart my laptop n boot from my USB HDD FROM BIOS its gives me a GRUB RESCUE even i had try to repair my grub but fail than i had remove my laptop internal HARD DRIVE than make a try with USB HDD live Kali Linux to select into my external USB HDD same everything goes perfect with last final grub installation than i reinstall my main INTERNAL HDD into my laptop and connect my EXTERNAL USB HDD n from bios boot from USB HDD
same problem GRUB RESCUE even i cant repair with same live kali linux so kindly help me out how to fix this problem i don't want to do DUAL boot just complete different .DO REPLY...