grub resuce no device found

[juanfra2]

Hello, I changed partition and install Ubuntu 12.04 from win7. when I rebooted it was not posible.

with ls, set etc doesn't work, could somebody helpp me? this is my boot info script and the mensaje

error: no such device: 6ad07239-5fa0-41d8-bcd3-ad451f4cf1ab
grub rescue>



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 1 of
the same hard drive for core.img. core.img is at this location and uses an
embedded config file:

---------------------------------------------------------------------------
search.fs_uuid 6ad07239-5fa0-41d8-bcd3-ad451f4cf1ab root
set prefix=($root)/boot/grub
---------------------------------------------------------------------------
-----.
=> Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of
the same hard drive for core.img. core.img is at this location and looks
for (,msdos5)/boot/grub on this drive.
=> MS-DOS 3.30 through Windows 95 (A) is installed in the MBR of /dev/sdc.
sda1: __________________________________________________ ________________________
File system: Extended Partition
Boot sector type: -
Boot sector info:
sda5: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: According to the info in the boot sector, sda5 starts
at sector 2048.
Operating System:
Boot files: /wubildr
sda2: __________________________________________________ ________________________
File system: ntfs
Boot sector type: Windows Vista/7: NTFS
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows 7
Boot files: /bootmgr /Boot/BCD /Windows/System32/winload.exe
/wubildr /wubildr.mbr /boot/grub/core.img
sda3: __________________________________________________ ________________________
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: /wubildr
sdb1: __________________________________________________ ________________________
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: /wubildr /ubuntu/winboot/wubildr
/ubuntu/winboot/wubildr.mbr /ubuntu/disks/root.disk
/ubuntu/disks/swap.disk
sdb1/Wubi: __________________________________________________ ___________________
File system: ext3
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 12.04.4 LTS
Boot files: /etc/fstab
sdc1: __________________________________________________ ________________________
File system: vfat
Boot sector type: Windows XP: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /boot/grub/grub.cfg /efi/BOOT/grubx64.efi
============================ 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 / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sda1 2,048 29,747,199 29,745,152 f W95 Extended (LBA)
/dev/sda5 4,096 29,745,151 29,741,056 7 NTFS / exFAT / HPFS
/dev/sda2 * 29,747,200 420,452,351 390,705,152 7 NTFS / exFAT / HPFS
/dev/sda3 420,452,352 976,769,023 556,316,672 7 NTFS / exFAT / HPFS

Drive: sdb __________________________________________________ ___________________
Disk /dev/sdb: 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 / 512 bytes
Partition Boot Start Sector End Sector # of Sectors Id System
/dev/sdb1 2,048 976,769,023 976,766,976 7 NTFS / exFAT / HPFS

Drive: sdc __________________________________________________ ___________________
Disk /dev/sdc: 15.5 GB, 15539896320 bytes
31 heads, 31 sectors/track, 31583 cylinders, total 30351360 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/sdc1 3,240 30,351,359 30,348,120 c W95 FAT32 (LBA)

"blkid" output: __________________________________________________ ______________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda2 00C417CCC417C2B8 ntfs WIN7
/dev/sda3 5264391D643904EF ntfs DATA
/dev/sda5 AC664B01664ACBB0 ntfs Nuevo vol
/dev/sdb1 5E8A17868A1759BB ntfs Nuevo vol
/dev/sdc1 3433-3231 vfat KINGSTON
================================ Mount points: =================================
Device Mount_Point Type Options
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdc1 /cdrom vfat (ro,noatime,fmask=0022,dmask=0022,codepage=437,ioc harset=iso8859-1,shortname=mixed,errors=remount-ro)

=================== sda2: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/core.img 1
============================= sdb1/Wubi/etc/fstab: =============================
--------------------------------------------------------------------------------
# UNCONFIGURED FSTAB FOR BASE SYSTEM
--------------------------------------------------------------------------------
================= sdb1/Wubi: Location of files loaded by Grub: =================
GiB - GB File Fragment(s)
= boot/initrd.img-3.11.0-15-generic 71
= boot/vmlinuz-3.11.0-15-generic 25
= boot/vmlinuz-3.11.0-15-generic.efi.signed 26
= vmlinuz 25
=========================== sdc1/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.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --
initrd /casper/initrd.lz
}
menuentry "Install Ubuntu" {
set gfxpayload=keep
linux /casper/vmlinuz.efi 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.efi boot=casper integrity-check quiet splash --
initrd /casper/initrd.lz
}
--------------------------------------------------------------------------------
=================== sdc1: Location of files loaded by Grub: ====================
GiB - GB File Fragment(s)
?? = ?? boot/grub/grub.cfg 1
=============================== StdErr Messages: ===============================
xz: (stdin): Compressed data is corrupt
xz: (stdin): Compressed data is corrupt
awk: cmd. line:36: Math support is not compiled in
awk: cmd. line:36: Math support is not compiled in
awk: cmd. line:36: Math support is not compiled in
awk: cmd. line:36: Math support is not compiled in

[juanfra2]

https://help.ubuntu.com/community/Boot-Repair


2nd option : install Boot-Repair in Ubuntu - boot your computer on a Ubuntu live-CD or live-USB. (https://help.ubuntu.com/community/BootFromCD)
- choose "Try Ubuntu"
- connect to the Internet
- open a new Terminal (https://help.ubuntu.com/community/Terminal), then type:
sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update- Press ENTER.
- Then type:
sudo apt-get install -y boot-repair && (boot-repair &)- Press ENTER

Using Boot-Repair
Recommended repair

launch Boot-Repair from either :

the Dash (the Ubuntu logo at the top-left of the screen)
or System->Administration->Boot-Repair menu (Ubuntu 10.04 only)

or by typing 'boot-repair' in a terminal


Then click the "Recommended repair" button. When repair is finished, note the URL (paste.ubuntu.com/XXXXX) that appeared on a paper, then reboot and check if you recovered access to your OSs.

If the repair did not succeed, indicate the URL to people who help you by email or forum.

[oldfred]

You installed wubi which does not use grub to boot but uses the Windows boot loader. After booting with Windows it will show a grub menu like a full install, but you cannot dual boot to Windows from that.

Because you installed grub you created another /boot partition. Windows is not case sensitive like Linux so you cannot have two partition like this /boot and /Boot as they are seen as the same and will conflict. You want to keep the one with BCD and delete the one with grub.

From your sda2 partition.
Boot files: /bootmgr /Boot/BCD /Windows/System32/winload.exe
/wubildr /wubildr.mbr /boot/grub/core.img

Use Windows or Boot-Repair to install Windows boot loaders to sda & sdb.