How to make grub2 boot another drive MBR?

My laptop (DELL Vostro 3350) has two hard drives:
Main one (/dev/sda), is a ssd mounted on SATA-HDD slot with Ubuntu14.04 (grub2 installed to this MBR). Installed on normaly hd bay
Second on (/dev/sdb), stock hd (with recovery partition etc etc) moved to SATA-ODD slot in place of dvd drive with an adapter

I can not figure out how to boot Windows from grub2. In the past I remember that (maybe with grub1) I could point to second disk mbr and then Windows booted normally.

So my config is:

Disk /dev/sda: 128.0 GB, 128035676160 bytes

255 testine, 63 settori/tracce, 15566 cilindri, totale 250069680 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0x0007d87d



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048   175781887    87889920   83  Linux

/dev/sda2       175783934   250068991    37142529    5  Esteso

/dev/sda5       175783936   246163455    35189760   83  Linux

/dev/sda6       246165504   250068991     1951744   82  Linux swap / Solaris



Disk /dev/sdb: 500.1 GB, 500107862016 bytes

255 testine, 63 settori/tracce, 60801 cilindri, totale 976773168 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0xb3e7a9bf



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048      206847      102400   de  Dell Utility

/dev/sdb2          206848    30926847    15360000    7  HPFS/NTFS/exFAT

/dev/sdb3   *    30926848   167600175    68336664    7  HPFS/NTFS/exFAT

/dev/sdb4       167604160   976768064   404581952+   f  W95 Esteso (LBA)

/dev/sdb5       167606208   976768064   404580928+   7  HPFS/NTFS/exFAT

Here is my /boot/grub/grub.cfg section of os-prober

menuentry 'Windows 7 (loader) (su /dev/sdb2)' --class windows --class os $menuentry_id_option 'osprober-chain-CC70378A703779F2' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos2 --hint-efi=hd1,msdos2 --hint-baremetal=ahci1,msdos2  CC70378A703779F2

else

  search --no-floppy --fs-uuid --set=root CC70378A703779F2

fi

parttool ${root} hidden-

chainloader +1

}



menuentry 'Windows 7 (loader) (su /dev/sdb3)' --class windows --class os $menuentry_id_option 'osprober-chain-AC7C4EC27C4E86D4' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos3'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos3 --hint-efi=hd1,msdos3 --hint-baremetal=ahci1,msdos3  AC7C4EC27C4E86D4

else

  search --no-floppy --fs-uuid --set=root AC7C4EC27C4E86D4

fi

parttool ${root} hidden-

chainloader +1

}

Both give me this message if i selected them on boot menu:

error: no such device: CC70378A703779F2 (or AC7C4EC27C4E86D4)

error: hd1 cannot get C/H/S values

http://i.stack.imgur.com/hvE3k.jpg

Last, but not the least, from my BIOS i cannot change hard drive boot priority, so there's no way to boot /dev/sdb first.

Edit:

this is my blkid

/dev/sda1: UUID="1597fe18-faf5-48a5-b80f-4cbb7f8b896e" TYPE="ext4" 

/dev/sda5: UUID="ea6548f1-3004-49ff-8d1d-4c84dfed3a6a" TYPE="ext4" 

/dev/sda6: UUID="e24dbc3b-d2da-4a63-97ce-7430cfce9fce" TYPE="swap" 

/dev/sdb1: SEC_TYPE="msdos" LABEL="DELLUTILITY" UUID="3030-3030" TYPE="vfat" 

/dev/sdb2: LABEL="Recovery" UUID="CC70378A703779F2" TYPE="ntfs" 

/dev/sdb3: LABEL="OS" UUID="AC7C4EC27C4E86D4" TYPE="ntfs" 

/dev/sdb5: LABEL="VostroHD" UUID="01CCBB70E50A71E0" TYPE="ntfs"

EDIT:
I ran bootinfo script. HERE the result

EDIT2:
PC configuration at top

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

asked May 21 '14 at 20:10

darrenBB

2113

bumped to the homepage by Community♦ 2 days ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

I think the option which drive is booting first is placed in BIOS boot options. Question similar your have already been asked and answered, so enjoy: Install on Second Hard Drive with startup boot option?
– Roomy
May 21 '14 at 20:20

cannot control harddrive boot order on my bios
– darrenBB
May 21 '14 at 20:34

Did you run sudo update-grub? That should automatically add a chainload to the partition with Windows boot files. If not seen then you have Windows issues.
– oldfred
May 21 '14 at 21:20

@oldfred just updated question with these details
– darrenBB
May 21 '14 at 21:25

Run sudo blkid and post the output. Maybe your UUID is wrong. I see sdb3 is marked bootable, but your config refers to ...msdos2 (disks start at 0, but not partitions).
– ubfan1
May 21 '14 at 21:41

|
show 2 more comments

I can not figure out how to boot Windows from grub2. In the past I remember that (maybe with grub1) I could point to second disk mbr and then Windows booted normally.

So my config is:

Disk /dev/sda: 128.0 GB, 128035676160 bytes

255 testine, 63 settori/tracce, 15566 cilindri, totale 250069680 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0x0007d87d



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048   175781887    87889920   83  Linux

/dev/sda2       175783934   250068991    37142529    5  Esteso

/dev/sda5       175783936   246163455    35189760   83  Linux

/dev/sda6       246165504   250068991     1951744   82  Linux swap / Solaris



Disk /dev/sdb: 500.1 GB, 500107862016 bytes

255 testine, 63 settori/tracce, 60801 cilindri, totale 976773168 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0xb3e7a9bf



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048      206847      102400   de  Dell Utility

/dev/sdb2          206848    30926847    15360000    7  HPFS/NTFS/exFAT

/dev/sdb3   *    30926848   167600175    68336664    7  HPFS/NTFS/exFAT

/dev/sdb4       167604160   976768064   404581952+   f  W95 Esteso (LBA)

/dev/sdb5       167606208   976768064   404580928+   7  HPFS/NTFS/exFAT

Here is my /boot/grub/grub.cfg section of os-prober

menuentry 'Windows 7 (loader) (su /dev/sdb2)' --class windows --class os $menuentry_id_option 'osprober-chain-CC70378A703779F2' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos2 --hint-efi=hd1,msdos2 --hint-baremetal=ahci1,msdos2  CC70378A703779F2

else

  search --no-floppy --fs-uuid --set=root CC70378A703779F2

fi

parttool ${root} hidden-

chainloader +1

}



menuentry 'Windows 7 (loader) (su /dev/sdb3)' --class windows --class os $menuentry_id_option 'osprober-chain-AC7C4EC27C4E86D4' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos3'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos3 --hint-efi=hd1,msdos3 --hint-baremetal=ahci1,msdos3  AC7C4EC27C4E86D4

else

  search --no-floppy --fs-uuid --set=root AC7C4EC27C4E86D4

fi

parttool ${root} hidden-

chainloader +1

}

Both give me this message if i selected them on boot menu:

error: no such device: CC70378A703779F2 (or AC7C4EC27C4E86D4)

error: hd1 cannot get C/H/S values

http://i.stack.imgur.com/hvE3k.jpg

Last, but not the least, from my BIOS i cannot change hard drive boot priority, so there's no way to boot /dev/sdb first.

Edit:

this is my blkid

/dev/sda1: UUID="1597fe18-faf5-48a5-b80f-4cbb7f8b896e" TYPE="ext4" 

/dev/sda5: UUID="ea6548f1-3004-49ff-8d1d-4c84dfed3a6a" TYPE="ext4" 

/dev/sda6: UUID="e24dbc3b-d2da-4a63-97ce-7430cfce9fce" TYPE="swap" 

/dev/sdb1: SEC_TYPE="msdos" LABEL="DELLUTILITY" UUID="3030-3030" TYPE="vfat" 

/dev/sdb2: LABEL="Recovery" UUID="CC70378A703779F2" TYPE="ntfs" 

/dev/sdb3: LABEL="OS" UUID="AC7C4EC27C4E86D4" TYPE="ntfs" 

/dev/sdb5: LABEL="VostroHD" UUID="01CCBB70E50A71E0" TYPE="ntfs"

EDIT:
I ran bootinfo script. HERE the result

EDIT2:
PC configuration at top

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

asked May 21 '14 at 20:10

darrenBB

2113

bumped to the homepage by Community♦ 2 days ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

I think the option which drive is booting first is placed in BIOS boot options. Question similar your have already been asked and answered, so enjoy: Install on Second Hard Drive with startup boot option?
– Roomy
May 21 '14 at 20:20

cannot control harddrive boot order on my bios
– darrenBB
May 21 '14 at 20:34

Did you run sudo update-grub? That should automatically add a chainload to the partition with Windows boot files. If not seen then you have Windows issues.
– oldfred
May 21 '14 at 21:20

@oldfred just updated question with these details
– darrenBB
May 21 '14 at 21:25

Run sudo blkid and post the output. Maybe your UUID is wrong. I see sdb3 is marked bootable, but your config refers to ...msdos2 (disks start at 0, but not partitions).
– ubfan1
May 21 '14 at 21:41

|
show 2 more comments

I can not figure out how to boot Windows from grub2. In the past I remember that (maybe with grub1) I could point to second disk mbr and then Windows booted normally.

So my config is:

Disk /dev/sda: 128.0 GB, 128035676160 bytes

255 testine, 63 settori/tracce, 15566 cilindri, totale 250069680 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0x0007d87d



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048   175781887    87889920   83  Linux

/dev/sda2       175783934   250068991    37142529    5  Esteso

/dev/sda5       175783936   246163455    35189760   83  Linux

/dev/sda6       246165504   250068991     1951744   82  Linux swap / Solaris



Disk /dev/sdb: 500.1 GB, 500107862016 bytes

255 testine, 63 settori/tracce, 60801 cilindri, totale 976773168 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0xb3e7a9bf



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048      206847      102400   de  Dell Utility

/dev/sdb2          206848    30926847    15360000    7  HPFS/NTFS/exFAT

/dev/sdb3   *    30926848   167600175    68336664    7  HPFS/NTFS/exFAT

/dev/sdb4       167604160   976768064   404581952+   f  W95 Esteso (LBA)

/dev/sdb5       167606208   976768064   404580928+   7  HPFS/NTFS/exFAT

Here is my /boot/grub/grub.cfg section of os-prober

menuentry 'Windows 7 (loader) (su /dev/sdb2)' --class windows --class os $menuentry_id_option 'osprober-chain-CC70378A703779F2' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos2 --hint-efi=hd1,msdos2 --hint-baremetal=ahci1,msdos2  CC70378A703779F2

else

  search --no-floppy --fs-uuid --set=root CC70378A703779F2

fi

parttool ${root} hidden-

chainloader +1

}



menuentry 'Windows 7 (loader) (su /dev/sdb3)' --class windows --class os $menuentry_id_option 'osprober-chain-AC7C4EC27C4E86D4' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos3'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos3 --hint-efi=hd1,msdos3 --hint-baremetal=ahci1,msdos3  AC7C4EC27C4E86D4

else

  search --no-floppy --fs-uuid --set=root AC7C4EC27C4E86D4

fi

parttool ${root} hidden-

chainloader +1

}

Both give me this message if i selected them on boot menu:

error: no such device: CC70378A703779F2 (or AC7C4EC27C4E86D4)

error: hd1 cannot get C/H/S values

http://i.stack.imgur.com/hvE3k.jpg

Last, but not the least, from my BIOS i cannot change hard drive boot priority, so there's no way to boot /dev/sdb first.

Edit:

this is my blkid

/dev/sda1: UUID="1597fe18-faf5-48a5-b80f-4cbb7f8b896e" TYPE="ext4" 

/dev/sda5: UUID="ea6548f1-3004-49ff-8d1d-4c84dfed3a6a" TYPE="ext4" 

/dev/sda6: UUID="e24dbc3b-d2da-4a63-97ce-7430cfce9fce" TYPE="swap" 

/dev/sdb1: SEC_TYPE="msdos" LABEL="DELLUTILITY" UUID="3030-3030" TYPE="vfat" 

/dev/sdb2: LABEL="Recovery" UUID="CC70378A703779F2" TYPE="ntfs" 

/dev/sdb3: LABEL="OS" UUID="AC7C4EC27C4E86D4" TYPE="ntfs" 

/dev/sdb5: LABEL="VostroHD" UUID="01CCBB70E50A71E0" TYPE="ntfs"

EDIT:
I ran bootinfo script. HERE the result

EDIT2:
PC configuration at top

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

asked May 21 '14 at 20:10

darrenBB

2113

I can not figure out how to boot Windows from grub2. In the past I remember that (maybe with grub1) I could point to second disk mbr and then Windows booted normally.

So my config is:

Disk /dev/sda: 128.0 GB, 128035676160 bytes

255 testine, 63 settori/tracce, 15566 cilindri, totale 250069680 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0x0007d87d



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sda1   *        2048   175781887    87889920   83  Linux

/dev/sda2       175783934   250068991    37142529    5  Esteso

/dev/sda5       175783936   246163455    35189760   83  Linux

/dev/sda6       246165504   250068991     1951744   82  Linux swap / Solaris



Disk /dev/sdb: 500.1 GB, 500107862016 bytes

255 testine, 63 settori/tracce, 60801 cilindri, totale 976773168 settori

Unità = settori di 1 * 512 = 512 byte

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Identificativo disco: 0xb3e7a9bf



Dispositivo Boot      Start         End      Blocks   Id  System

/dev/sdb1            2048      206847      102400   de  Dell Utility

/dev/sdb2          206848    30926847    15360000    7  HPFS/NTFS/exFAT

/dev/sdb3   *    30926848   167600175    68336664    7  HPFS/NTFS/exFAT

/dev/sdb4       167604160   976768064   404581952+   f  W95 Esteso (LBA)

/dev/sdb5       167606208   976768064   404580928+   7  HPFS/NTFS/exFAT

Here is my /boot/grub/grub.cfg section of os-prober

menuentry 'Windows 7 (loader) (su /dev/sdb2)' --class windows --class os $menuentry_id_option 'osprober-chain-CC70378A703779F2' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos2'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos2 --hint-efi=hd1,msdos2 --hint-baremetal=ahci1,msdos2  CC70378A703779F2

else

  search --no-floppy --fs-uuid --set=root CC70378A703779F2

fi

parttool ${root} hidden-

chainloader +1

}



menuentry 'Windows 7 (loader) (su /dev/sdb3)' --class windows --class os $menuentry_id_option 'osprober-chain-AC7C4EC27C4E86D4' {

insmod part_msdos

insmod ntfs

set root='hd1,msdos3'

if [ x$feature_platform_search_hint = xy ]; then

  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos3 --hint-efi=hd1,msdos3 --hint-baremetal=ahci1,msdos3  AC7C4EC27C4E86D4

else

  search --no-floppy --fs-uuid --set=root AC7C4EC27C4E86D4

fi

parttool ${root} hidden-

chainloader +1

}

Both give me this message if i selected them on boot menu:

error: no such device: CC70378A703779F2 (or AC7C4EC27C4E86D4)

error: hd1 cannot get C/H/S values

http://i.stack.imgur.com/hvE3k.jpg

Last, but not the least, from my BIOS i cannot change hard drive boot priority, so there's no way to boot /dev/sdb first.

Edit:

this is my blkid

/dev/sda1: UUID="1597fe18-faf5-48a5-b80f-4cbb7f8b896e" TYPE="ext4" 

/dev/sda5: UUID="ea6548f1-3004-49ff-8d1d-4c84dfed3a6a" TYPE="ext4" 

/dev/sda6: UUID="e24dbc3b-d2da-4a63-97ce-7430cfce9fce" TYPE="swap" 

/dev/sdb1: SEC_TYPE="msdos" LABEL="DELLUTILITY" UUID="3030-3030" TYPE="vfat" 

/dev/sdb2: LABEL="Recovery" UUID="CC70378A703779F2" TYPE="ntfs" 

/dev/sdb3: LABEL="OS" UUID="AC7C4EC27C4E86D4" TYPE="ntfs" 

/dev/sdb5: LABEL="VostroHD" UUID="01CCBB70E50A71E0" TYPE="ntfs"

EDIT:
I ran bootinfo script. HERE the result

EDIT2:
PC configuration at top

dual-boot grub2 mbr

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

asked May 21 '14 at 20:10

darrenBB

2113

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

asked May 21 '14 at 20:10

darrenBB

2113

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

edited Jun 16 '18 at 9:08

Codito ergo sum

1,1052725

asked May 21 '14 at 20:10

darrenBB

2113

asked May 21 '14 at 20:10

darrenBB

2113

asked May 21 '14 at 20:10

darrenBB

2113

bumped to the homepage by Community♦ 2 days ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

bumped to the homepage by Community♦ 2 days ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

I think the option which drive is booting first is placed in BIOS boot options. Question similar your have already been asked and answered, so enjoy: Install on Second Hard Drive with startup boot option?
– Roomy
May 21 '14 at 20:20

cannot control harddrive boot order on my bios
– darrenBB
May 21 '14 at 20:34

Did you run sudo update-grub? That should automatically add a chainload to the partition with Windows boot files. If not seen then you have Windows issues.
– oldfred
May 21 '14 at 21:20

@oldfred just updated question with these details
– darrenBB
May 21 '14 at 21:25

Run sudo blkid and post the output. Maybe your UUID is wrong. I see sdb3 is marked bootable, but your config refers to ...msdos2 (disks start at 0, but not partitions).
– ubfan1
May 21 '14 at 21:41

|
show 2 more comments

I think the option which drive is booting first is placed in BIOS boot options. Question similar your have already been asked and answered, so enjoy: Install on Second Hard Drive with startup boot option?
– Roomy
May 21 '14 at 20:20

cannot control harddrive boot order on my bios
– darrenBB
May 21 '14 at 20:34

Did you run sudo update-grub? That should automatically add a chainload to the partition with Windows boot files. If not seen then you have Windows issues.
– oldfred
May 21 '14 at 21:20

@oldfred just updated question with these details
– darrenBB
May 21 '14 at 21:25

Run sudo blkid and post the output. Maybe your UUID is wrong. I see sdb3 is marked bootable, but your config refers to ...msdos2 (disks start at 0, but not partitions).
– ubfan1
May 21 '14 at 21:41

I think the option which drive is booting first is placed in BIOS boot options. Question similar your have already been asked and answered, so enjoy: Install on Second Hard Drive with startup boot option?
– Roomy
May 21 '14 at 20:20

cannot control harddrive boot order on my bios
– darrenBB
May 21 '14 at 20:34

Did you run sudo update-grub? That should automatically add a chainload to the partition with Windows boot files. If not seen then you have Windows issues.
– oldfred
May 21 '14 at 21:20

@oldfred just updated question with these details
– darrenBB
May 21 '14 at 21:25

Run sudo blkid and post the output. Maybe your UUID is wrong. I see sdb3 is marked bootable, but your config refers to ...msdos2 (disks start at 0, but not partitions).
– ubfan1
May 21 '14 at 21:41

|
show 2 more comments

1 Answer
1

active

oldest

votes

review the following and see if it applies to you:

http://ubuntuforums.org/archive/index.php/t-1479070.html

If not look here

edited May 21 '14 at 23:08

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

yes, but what about the second entry? this refers to sdb3
– darrenBB
May 21 '14 at 22:21

Sorry, missed that. Changing answer.
– Elder Geek
May 21 '14 at 22:36

The boot flag does not matter: all it does it tell the Microsoft MBR code that it should load the boot sector in that partition. Grub doesn't care about the flag.
– psusi
May 21 '14 at 22:36

chainloading? Hmm. I'll look into that @psusi
– Elder Geek
May 21 '14 at 22:55

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review the following and see if it applies to you:

http://ubuntuforums.org/archive/index.php/t-1479070.html

If not look here

edited May 21 '14 at 23:08

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

yes, but what about the second entry? this refers to sdb3
– darrenBB
May 21 '14 at 22:21

Sorry, missed that. Changing answer.
– Elder Geek
May 21 '14 at 22:36

The boot flag does not matter: all it does it tell the Microsoft MBR code that it should load the boot sector in that partition. Grub doesn't care about the flag.
– psusi
May 21 '14 at 22:36

chainloading? Hmm. I'll look into that @psusi
– Elder Geek
May 21 '14 at 22:55

add a comment |

review the following and see if it applies to you:

http://ubuntuforums.org/archive/index.php/t-1479070.html

If not look here

edited May 21 '14 at 23:08

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

yes, but what about the second entry? this refers to sdb3
– darrenBB
May 21 '14 at 22:21

Sorry, missed that. Changing answer.
– Elder Geek
May 21 '14 at 22:36

The boot flag does not matter: all it does it tell the Microsoft MBR code that it should load the boot sector in that partition. Grub doesn't care about the flag.
– psusi
May 21 '14 at 22:36

chainloading? Hmm. I'll look into that @psusi
– Elder Geek
May 21 '14 at 22:55

add a comment |

review the following and see if it applies to you:

http://ubuntuforums.org/archive/index.php/t-1479070.html

If not look here

edited May 21 '14 at 23:08

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

review the following and see if it applies to you:

http://ubuntuforums.org/archive/index.php/t-1479070.html

If not look here

edited May 21 '14 at 23:08

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

edited May 21 '14 at 23:08

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

answered May 21 '14 at 21:40

Elder Geek

26.5k952126

yes, but what about the second entry? this refers to sdb3
– darrenBB
May 21 '14 at 22:21

Sorry, missed that. Changing answer.
– Elder Geek
May 21 '14 at 22:36

The boot flag does not matter: all it does it tell the Microsoft MBR code that it should load the boot sector in that partition. Grub doesn't care about the flag.
– psusi
May 21 '14 at 22:36

chainloading? Hmm. I'll look into that @psusi
– Elder Geek
May 21 '14 at 22:55

add a comment |

yes, but what about the second entry? this refers to sdb3
– darrenBB
May 21 '14 at 22:21

Sorry, missed that. Changing answer.
– Elder Geek
May 21 '14 at 22:36

The boot flag does not matter: all it does it tell the Microsoft MBR code that it should load the boot sector in that partition. Grub doesn't care about the flag.
– psusi
May 21 '14 at 22:36

chainloading? Hmm. I'll look into that @psusi
– Elder Geek
May 21 '14 at 22:55

yes, but what about the second entry? this refers to sdb3
– darrenBB
May 21 '14 at 22:21

Sorry, missed that. Changing answer.
– Elder Geek
May 21 '14 at 22:36

The boot flag does not matter: all it does it tell the Microsoft MBR code that it should load the boot sector in that partition. Grub doesn't care about the flag.
– psusi
May 21 '14 at 22:36

chainloading? Hmm. I'll look into that @psusi
– Elder Geek
May 21 '14 at 22:55

add a comment |

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