If sounds like grub installed its boot loader to the wrong place. It should be in the MBR of the sda drive. But if you are still booting windows then windows boot loader must be there. To be more specific I installed the boot loader on /dev/sda which was also the default setting. /dev/sda1 is where windows 7 is installed. /dev/sda2 is the mount point. sda5 is swap and sda6 is basically empty.
Boot flag is only used by windows (and lilo) but not by grub. So leave the boot flag on the windows boot partition and make sure windows boots. OK. I put the flag back at sda1.
If grub installed to the external flash drive, does it still boot, or can you get the liveUSB to work?I have no idea if grub is installed to anywhere but liveUSB boots and works perfectly so as win7.
I deeply thank meierfra & Gert Hulselmans.
Boot Info Script 0.60 from 17 May 2011
============================= Boot Info Summary: ===============================
=> Windows is installed in the MBR of /dev/sda.
=> Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdb.
sda1: __________________________________________________ ________________________
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: /bootmgr /Boot/BCD /Windows/System32/winload.exe
sda2: __________________________________________________ ________________________
File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 11.04
Boot files: /etc/fstab
sda3: __________________________________________________ ________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________ ________________________
File system: swap
Boot sector type: -
Boot sector info:
sda6: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files:
sdb1: __________________________________________________ ________________________
File system: vfat
Boot sector type: SYSLINUX 4.04 2011-04-18
Boot sector info: Syslinux looks at sector 8200 of /dev/sdb1 for its
second stage. SYSLINUX is installed in the directory.
The integrity check of the ADV area failed. No errors
found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /syslinux/syslinux.cfg /ldlinux.sys
============================ Drive/Partition Info: =============================
Drive: sda __________________________________________________ ___________________
Disk /dev/sda: 750.2 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders, total 1465149168 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 * 2,048 409,602,047 409,600,000 7 NTFS / exFAT / HPFS
/dev/sda2 409,602,048 614,402,047 204,800,000 83 Linux
/dev/sda3 614,404,094 1,465,147,391 850,743,298 5 Extended
/dev/sda5 614,404,096 626,692,095 12,288,000 82 Linux swap / Solaris
/dev/sda6 626,694,144 1,465,147,391 838,453,248 7 NTFS / exFAT / HPFS
Drive: sdb __________________________________________________ ___________________
Disk /dev/sdb: 2055 MB, 2055021056 bytes
255 heads, 63 sectors/track, 249 cylinders, total 4013713 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 * 63 4,013,712 4,013,650 b W95 FAT32
"blkid" output: __________________________________________________ ______________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 7724673B4792297A ntfs
/dev/sda2 41e84ecd-a71d-4013-a9c0-0ac18bc80f13 ext4
/dev/sda5 fa5a17a8-88dc-48d2-b6ae-90a1be4dd0a3 swap
/dev/sda6 25F0170F6E52B2E2 ntfs
/dev/sdb1 7462-B095 vfat PENDRIVE
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdb1 /cdrom vfat (ro,noatime,fmask=0022,dmask=0022,codepage=cp437,i ocharset=iso8859-1,shortname=mixed,errors=remount-ro)
=============================== sda2/etc/fstab: ================================
--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid -o value -s UUID' to print the universally unique identifier
# for a device; this may be used with UUID= as a more robust way to name
# devices that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
proc /proc proc nodev,noexec,nosuid 0 0
# / was on /dev/sda2 during installation
UUID=41e84ecd-a71d-4013-a9c0-0ac18bc80f13 / ext4 errors=remount-ro 0 1
# swap was on /dev/sda5 during installation
UUID=fa5a17a8-88dc-48d2-b6ae-90a1be4dd0a3 none swap sw 0 0
--------------------------------------------------------------------------------
=================== sda2: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
265.446285248 = 285.020778496 boot/vmlinuz-2.6.38-8-generic 1
265.446285248 = 285.020778496 vmlinuz 1
=========================== sdb1/boot/grub/grub.cfg: ===========================
--------------------------------------------------------------------------------
if loadfont /boot/grub/font.pf2 ; then
set gfxmode=auto
insmod efi_gop
insmod efi_uga
insmod gfxterm
terminal_output gfxterm
fi
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
menuentry "Try Ubuntu without installing" {
set gfxpayload=keep
linux /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
initrd /casper/initrd.lz
}
menuentry "Install Ubuntu" {
set gfxpayload=keep
linux /casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash --
initrd /casper/initrd.lz
}
menuentry "Check disc for defects" {
set gfxpayload=keep
linux /casper/vmlinuz boot=casper integrity-check quiet splash --
initrd /casper/initrd.lz
}
--------------------------------------------------------------------------------
========================= sdb1/syslinux/syslinux.cfg: ==========================
--------------------------------------------------------------------------------
# D-I config version 2.0
include menu.cfg
default vesamenu.c32
prompt 0
timeout 50
# If you would like to use the new menu and be presented with the option to install or run from USB at startup, remove # from the following line. This line was commented out (by request of many) to allow the old menu to be presented and to enable booting straight into the Live Environment!
# ui gfxboot bootlogo
--------------------------------------------------------------------------------
=================== sdb1: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
================= sdb1: Location of files loaded by Syslinux: ==================
GiB - GB File Fragment(s)
?? = ?? ldlinux.sys 1
?? = ?? syslinux/gfxboot.c32 1
?? = ?? syslinux/syslinux.cfg 1
?? = ?? syslinux/vesamenu.c32 1
============== sdb1: Version of COM32(R) files used by Syslinux: ===============
syslinux/gfxboot.c32 : COM32R module (v4.xx)
syslinux/vesamenu.c32 : COM32R module (v4.xx)
========= Devices which don't seem to have a corresponding hard drive: =========
sdc
=============================== StdErr Messages: ===============================
/home/ubuntu/Desktop/boot_info_script.sh: line 1579: [: 2.73495e+09: integer expression expected
Thank you VERY much for helping.