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I'm having a problem every time I start up my computer. I have windows xp on the main drive, then on a second internal drive I have a partition that ...
- 10-02-2010 #1Just Joined!
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Boot Problem: No such device, grub rescue>
I'm having a problem every time I start up my computer. I have windows xp on the main drive, then on a second internal drive I have a partition that help Ubuntu.
I had Ubuntu10.04 and today updated to 10.10. A GRUB installer came up and I just followed the prompts and let it install. After it finished I restarted and I get the following
I'm new to linix and have no idea what to do, I searched everywhere and am going in circles.Code:error no such device b49c7330-fa14-4c7a-80c3-5217ae2caa3a grub rescue>
I found a page with the commands for the prompt, what do I have to enter to get somewhere? or I have a thumbdrive, can I download the windows booter to this and boot from it? I don't have the recovery cd, so I need to do something through the prompt, or boot from thumbdrive.
Edit: I have a thumbdrive and found instructions on how to make it into a boot drive. Since I can set my computer up to boot from usb:
So, after I set the drive into a boot drive if I go into it and type
Code:
fixboot
Code:
fixmbr
Then type
Code:
exit
that should do it right?Last edited by xieon; 10-02-2010 at 05:10 AM.
- 10-02-2010 #2Super Moderator
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Hi and Welcome !error no such device
b49c7330-fa14-4c7a-80c3-5217ae2caa3a
grub rescue>
UUID of partitions have been changed somehow. Boot up from LiveCD of Ubuntu and mount its / partition. Replace UUID of / with actual device assigned to root partition.
In case, you don't know how to do that, execute sudo fdisk -l command in Terminal and post output here.
* It's small L in fdisk -l.Code:sudo fdisk -l
It is amazing what you can accomplish if you do not care who gets the credit.
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- 10-02-2010 #3Just Joined!
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I don't have a livecd of ubuntu but I do have an usb xp restore. Couldn't I boot from that and install windows to the mdr? Then I could do a clean uninstall/install from there and fix the issue?
Originally Posted by devils casper 
- 10-02-2010 #4Super Moderator
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If you don't want to fix Ubuntu then fixing Windows OS shouldn't be any problem. There are a lot of tools available to fix it. In most tools, you have to execute fixmbr command at repair prompt.
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- 10-02-2010 #5Just Joined!
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Well I managed to get a windows recovery cd, but I don't know thw administrator password, so I can't use FIXBOOT or FIXMBR. Originally Posted by devils casper
I also got a Live CD, so it looks like we'll be working from linux to install a working bootloader.
Here's the output you asked for:
I also ran a boot info script and got the following, seems that they are looking in the wrong place when booting.Code:Disk /dev/sda: 40.0 GB, 40020664320 bytes 240 heads, 63 sectors/track, 5169 cylinders Units = cylinders of 15120 * 512 = 7741440 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x9b5d9b5d Device Boot Start End Blocks Id System /dev/sda1 * 1 5168 39070048+ 7 HPFS/NTFS Disk /dev/sdb: 250.1 GB, 250059350016 bytes 240 heads, 63 sectors/track, 32301 cylinders Units = cylinders of 15120 * 512 = 7741440 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000448ae Device Boot Start End Blocks Id System /dev/sdb1 1 18757 141797691 7 HPFS/NTFS /dev/sdb2 * 18757 29566 81721237+ 7 HPFS/NTFS /dev/sdb3 29567 32301 20676600 f W95 Ext'd (LBA) /dev/sdb5 29567 32301 20676568+ 7 HPFS/NTFS
Code:Boot Info Script 0.55 dated February 15th, 2010 sudo bash ~/Desktop/boot_info_script*.sh ============================= Boot Info Summary: ============================== => Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in partition #256 for /boot/grub. => Grub 2 is installed in the MBR of /dev/sdb and looks on the same drive in partition #256 for /boot/grub. sda1: _________________________________________________________________________ File system: ntfs Boot sector type: Windows XP Boot sector info: No errors found in the Boot Parameter Block. Operating System: Windows XP Boot files/dirs: /boot.ini /ntldr /NTDETECT.COM /wubildr.mbr /wubildr sdb1: _________________________________________________________________________ File system: ntfs Boot sector type: Windows XP Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files/dirs: sudo grub-install --root-directory=/mnt /dev/sda sdb2: _________________________________________________________________________ File system: ntfs Boot sector type: Windows XP Boot sector info: No errors found in the Boot Parameter Block. Operating System: Boot files/dirs: sdb3: _________________________________________________________________________ File system: Extended Partition Boot sector type: Unknown Boot sector info: sdb5: _________________________________________________________________________ File system: ntfs Boot sector type: Grub 2 Boot sector info: Grub 2 is installed in the boot sector of sdb5 and looks at sector 453627591 of the same hard drive for core.img, but core.img can not be found at this location. According to the info in the boot sector, sdb5 starts at sector 63. Operating System: Boot files/dirs: /ubuntu/winboot/wubildr.mbr /ubuntu/winboot/wubildr /ubuntu/disks/root.disk /ubuntu/disks/swap.disk /boot/grub/core.img sdb5/Wubi: _________________________________________________________________________ File system: ext4 Boot sector type: Grub 2 Boot sector info: Grub 2 is installed in the boot sector of sdb5/Wubi and looks at sector 8910552 of the same hard drive for core.img, but core.img can not be found at this location. Operating System: Ubuntu maverick (development branch) Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img =========================== Drive/Partition Info: ============================= Drive: sda ___________________ _____________________________________________________ Disk /dev/sda: 40.0 GB, 40020664320 bytes 240 heads, 63 sectors/track, 5169 cylinders, total 78165360 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes Partition Boot Start End Size Id System /dev/sda1 * 63 78,140,159 78,140,097 7 HPFS/NTFS Drive: sdb ___________________ _____________________________________________________ Disk /dev/sdb: 250.1 GB, 250059350016 bytes 240 heads, 63 sectors/track, 32301 cylinders, total 488397168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes Partition Boot Start End Size Id System /dev/sdb1 63 283,595,444 283,595,382 7 HPFS/NTFS /dev/sdb2 * 283,595,445 447,037,919 163,442,475 7 HPFS/NTFS /dev/sdb3 447,037,920 488,391,119 41,353,200 f W95 Ext d (LBA) /dev/sdb5 447,037,983 488,391,119 41,353,137 7 HPFS/NTFS blkid -c /dev/null: ____________________________________________________________ Device UUID TYPE LABEL /dev/loop0 squashfs /dev/loop1 b49c7330-fa14-4c7a-80c3-5217ae2caa3a ext4 /dev/sda1 69A4175722DE71C1 ntfs /dev/sda: PTTYPE="dos" /dev/sdb1 C470595C70595670 ntfs New Volume /dev/sdb2 AE9C0BC59C0B8755 ntfs Entertainment2 /dev/sdb3: PTTYPE="dos" /dev/sdb5 01CB612C09D1F0C0 ntfs Ubuntu /dev/sdb: PTTYPE="dos" ============================ "mount | grep ^/dev output: =========================== Device Mount_Point Type Options aufs / aufs (rw) /dev/sr0 /cdrom iso9660 (ro,noatime) /dev/loop0 /rofs squashfs (ro,noatime) ================================ sda1/boot.ini: ================================ [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect /NoExecute=OptIn /AVASTBOOT C:\wubildr.mbr = "Ubuntu" =================== sdb5: Location of files loaded by Grub: =================== ??GB: boot/grub/core.img ======================== sdb5/Wubi/boot/grub/grub.cfg: ======================== # # DO NOT EDIT THIS FILE # # It is automatically generated by grub-mkconfig using templates # from /etc/grub.d and settings from /etc/default/grub # ### BEGIN /etc/grub.d/00_header ### if [ -s $prefix/grubenv ]; then set have_grubenv=true load_env fi set default="0" if [ "${prev_saved_entry}" ]; then set saved_entry="${prev_saved_entry}" save_env saved_entry set prev_saved_entry= save_env prev_saved_entry set boot_once=true fi function savedefault { if [ -z "${boot_once}" ]; then saved_entry="${chosen}" save_env saved_entry fi } function recordfail { set recordfail=1 if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi } function load_video { insmod vbe insmod vga insmod video_bochs insmod video_cirrus } insmod part_msdos insmod ntfs set root='(hd1,msdos5)' search --no-floppy --fs-uuid --set 01cb612c09d1f0c0 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=640x480 load_video insmod gfxterm fi terminal_output gfxterm insmod part_msdos insmod ntfs set root='(hd1,msdos5)' search --no-floppy --fs-uuid --set 01cb612c09d1f0c0 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) set locale_dir=($root)/boot/grub/locale set lang=en insmod gettext if [ "${recordfail}" = 1 ]; then set timeout=-1 else set timeout=10 fi ### END /etc/grub.d/00_header ### ### BEGIN /etc/grub.d/05_debian_theme ### set menu_color_normal=white/black set menu_color_highlight=black/light-gray ### END /etc/grub.d/05_debian_theme ### ### BEGIN /etc/grub.d/10_linux ### ### END /etc/grub.d/10_linux ### ### BEGIN /etc/grub.d/10_lupin ### menuentry "Ubuntu, Linux 2.6.35-22-generic" { insmod part_msdos insmod ntfs set root='(hd1,msdos5)' search --no-floppy --fs-uuid --set 01cb612c09d1f0c0 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-2.6.35-22-generic root=/dev/sdb5 loop=/ubuntu/disks/root.disk ro quiet splash initrd /boot/initrd.img-2.6.35-22-generic } menuentry "Ubuntu, Linux 2.6.35-22-generic (recovery mode)" { insmod part_msdos insmod ntfs set root='(hd1,msdos5)' search --no-floppy --fs-uuid --set 01cb612c09d1f0c0 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-2.6.35-22-generic root=/dev/sdb5 loop=/ubuntu/disks/root.disk ro single initrd /boot/initrd.img-2.6.35-22-generic } menuentry "Ubuntu, Linux 2.6.32-25-generic" { insmod part_msdos insmod ntfs set root='(hd1,msdos5)' search --no-floppy --fs-uuid --set 01cb612c09d1f0c0 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-2.6.32-25-generic root=/dev/sdb5 loop=/ubuntu/disks/root.disk ro quiet splash initrd /boot/initrd.img-2.6.32-25-generic } menuentry "Ubuntu, Linux 2.6.32-25-generic (recovery mode)" { insmod part_msdos insmod ntfs set root='(hd1,msdos5)' search --no-floppy --fs-uuid --set 01cb612c09d1f0c0 loopback loop0 /ubuntu/disks/root.disk set root=(loop0) linux /boot/vmlinuz-2.6.32-25-generic root=/dev/sdb5 loop=/ubuntu/disks/root.disk ro single initrd /boot/initrd.img-2.6.32-25-generic } ### END /etc/grub.d/10_lupin ### ### BEGIN /etc/grub.d/20_linux_xen ### ### END /etc/grub.d/20_linux_xen ### ### BEGIN /etc/grub.d/20_memtest86+ ### ### END /etc/grub.d/20_memtest86+ ### ### BEGIN /etc/grub.d/30_os-prober ### menuentry "Microsoft Windows XP Professional (on /dev/sda1)" { insmod part_msdos insmod ntfs set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set 69a4175722de71c1 drivemap -s (hd0) ${root} chainloader +1 } ### END /etc/grub.d/30_os-prober ### ### BEGIN /etc/grub.d/40_custom ### # This file provides an easy way to add custom menu entries. Simply type the # menu entries you want to add after this comment. Be careful not to change # the 'exec tail' line above. ### END /etc/grub.d/40_custom ### ### BEGIN /etc/grub.d/41_custom ### if [ -f $prefix/custom.cfg ]; then source $prefix/custom.cfg; fi ### END /etc/grub.d/41_custom ### ============================= sdb5/Wubi/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 /host/ubuntu/disks/root.disk / ext4 loop,errors=remount-ro 0 1 /host/ubuntu/disks/swap.disk none swap loop,sw 0 0 /dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0 ================= sdb5/Wubi: Location of files loaded by Grub: ================= 4.5GB: boot/grub/core.img 8.9GB: boot/grub/grub.cfg 1.8GB: boot/initrd.img-2.6.32-25-generic 14.9GB: boot/initrd.img-2.6.35-22-generic 4.7GB: boot/vmlinuz-2.6.32-25-generic 4.9GB: boot/vmlinuz-2.6.35-22-generic 14.9GB: initrd.img 1.8GB: initrd.img.old 4.9GB: vmlinuz 4.7GB: vmlinuz.old =========================== Unknown MBRs/Boot Sectors/etc ======================= Unknown BootLoader on sdb3 00000000 a9 b3 2b 48 ea 76 a9 18 fa b7 3b 4a 04 68 98 31 |..+H.v....;J.h.1| 00000010 12 aa 95 9e 5d 18 8d 95 66 5a b5 5e b2 4c f3 83 |....]...fZ.^.L..| 00000020 0a c2 b2 37 33 75 d9 07 1e 83 34 3b 3a 1e 58 dd |...73u....4;:.X.| 00000030 3a 2d 1e 1d 79 de 8f b9 cc 3c d7 30 29 d1 02 c9 |:-..y....<.0)...| 00000040 e8 dd 5e f7 4f 49 46 06 db b3 23 37 9f 93 ad 31 |..^.OIF...#7...1| 00000050 f7 5d ab d5 a8 da 1e 46 93 9d b9 99 bd de e8 a9 |.].....F........| 00000060 0c 98 c6 7f 7e 91 b6 dc 21 5b 01 5e 2a 9f d5 ad |....~...
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