[SOLVED] Unknown filesystem, grub rescue mode. Win7, then Ubuntu were installed
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Unknown filesystem, grub rescue mode. Win7, then Ubuntu were installed
Hi guys!
A few days ago I decided to try a linux OS for the first time. Following a how-to advice, I created a ~80gb partition (on a 320 gb sata disk) for Win7 and installed it. Then I installed Ubuntu 10.04, chose to make partitions manually, created a primary ext4-partition (right after the one with Win7) for / and a 1024mb swap partition. So now the disk is parted this way: 512 booter - Win7 system, ~ 80gb ntfs - Ubuntu /, 8 gb ext4 - Ubuntu 1 gb swap - file storage, ntfs ~240 gb (created using Win7 bootable disk, but the issue from below started before this).
After the installation the boot loader failed to load any system, giving the error from the topic title. I tried several ways to reinstall/repair/reconfigure grub in the live-CD mode. Some of them didn't change anything, others were not completed because of an update-grub error ("cannot find a device for / (is /dev mounted?)").
Grub version is 1.98b. The disk with Win7 and Ubuntu is treated as hd0 in grub and sdd in Ubuntu.
Could anyone please help me with this issue?
Best regards,
Aleksey.
--------- Note: even though the thread is marked as SOLVED, the issue is actually not. I have managed to dual-boot Win7 and Ubuntu, but with partition configuration changes. And I'll still be glad if someone hints me at the solution (even though I will probably not be testing it anymore ).
Grub must be in the MBR to get to rescue mode.
OP - does the Ubuntu disk work as a liveCD ("try it without installing") ?. If so, go to sf.net and get the bootinfoscript - here is the instructions how to run it.
Post the RESULTS.txt it creates so we can see what is trying to boot.
trist007, yes, to the disk I installed Win7 and Ubuntu to.
syg00, here it is:
Code:
Boot Info Script 0.55 dated February 15th, 2010
============================= Boot Info Summary: ==============================
=> Syslinux is installed in the MBR of /dev/sda
=> Windows is installed in the MBR of /dev/sdb
=> Windows is installed in the MBR of /dev/sdc
=> Syslinux is installed in the MBR of /dev/sdd
sda1: _________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:
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:
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: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:
sdc1: _________________________________________________________________________
File system: ntfs
Boot sector type: Windows XP
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:
sdd1: _________________________________________________________________________
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/dirs: /bootmgr /Boot/BCD /Windows/System32/winload.exe /grldr
sdd2: _________________________________________________________________________
File system: ext4
Boot sector type: Grub 2
Boot sector info: Grub 2 is installed in the boot sector of sdd2 and
looks at sector 154078136 of the same hard drive for
core.img, but core.img can not be found at this
location.
Operating System: Ubuntu 10.04 LTS
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img
sdd3: _________________________________________________________________________
File system: swap
Boot sector type: -
Boot sector info:
sdd4: _________________________________________________________________________
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:
=========================== Drive/Partition Info: =============================
Drive: sda ___________________ _____________________________________________________
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders, total 156301488 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 * 63 156,296,384 156,296,322 7 HPFS/NTFS
Drive: sdb ___________________ _____________________________________________________
Disk /dev/sdb: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders, total 390721968 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 * 63 130,255,019 130,254,957 7 HPFS/NTFS
/dev/sdb2 130,255,020 260,493,974 130,238,955 7 HPFS/NTFS
/dev/sdb3 260,493,975 390,716,864 130,222,890 7 HPFS/NTFS
Drive: sdc ___________________ _____________________________________________________
Disk /dev/sdc: 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 / 512 bytes
Partition Boot Start End Size Id System
/dev/sdc1 * 63 1,465,144,064 1,465,144,002 7 HPFS/NTFS
Drive: sdd ___________________ _____________________________________________________
Disk /dev/sdd: 320.1 GB, 320072933376 bytes
16 heads, 63 sectors/track, 620181 cylinders, total 625142448 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
Partition Boot Start End Size Id System
/dev/sdd1 * 2,048 143,362,047 143,360,000 7 HPFS/NTFS
/dev/sdd2 143,362,048 159,571,967 16,209,920 83 Linux
/dev/sdd3 159,571,968 161,572,863 2,000,896 82 Linux swap / Solaris
/dev/sdd4 161,572,864 625,137,663 463,564,800 7 HPFS/NTFS
blkid -c /dev/null: ____________________________________________________________
Device UUID TYPE LABEL
/dev/loop0 squashfs
/dev/sda1 64240B3A240B0F2C ntfs Highwind
/dev/sda: PTTYPE="dos"
/dev/sdb1 A26828AF6828845F ntfs Всё подряд
/dev/sdb2 9268DB2D68DB0EBB ntfs Музыка™
/dev/sdb3 266CB0E26CB0AE45 ntfs ћ
/dev/sdb: PTTYPE="dos"
/dev/sdc1 01C962FF831761E0 ntfs Millenium Falcon
/dev/sdc: PTTYPE="dos"
/dev/sdd1 5A24520C2451EB8F ntfs
/dev/sdd2 4687d7aa-8369-4ea2-a795-5e2977ffc492 ext4
/dev/sdd3 063fc3d4-6dd5-46a2-9be0-d73eeb9647ac swap
/dev/sdd4 62580F2B580EFE13 ntfs
/dev/sdd: 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)
/dev/sdb1 /media/Всё подряд fuseblk (rw,nosuid,nodev,allow_other,blksize=512,default_permissions)
/dev/sda1 /media/Highwind fuseblk (rw,nosuid,nodev,allow_other,blksize=4096,default_permissions)
=========================== sdd2/boot/grub/grub.cfg: ===========================
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/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
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 ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set 4687d7aa-8369-4ea2-a795-5e2977ffc492
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set 4687d7aa-8369-4ea2-a795-5e2977ffc492
set locale_dir=($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 ###
menuentry 'Ubuntu, with Linux 2.6.32-21-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set 4687d7aa-8369-4ea2-a795-5e2977ffc492
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=4687d7aa-8369-4ea2-a795-5e2977ffc492 ro quiet splash
initrd /boot/initrd.img-2.6.32-21-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-21-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set 4687d7aa-8369-4ea2-a795-5e2977ffc492
echo 'Loading Linux 2.6.32-21-generic ...'
linux /boot/vmlinuz-2.6.32-21-generic root=UUID=4687d7aa-8369-4ea2-a795-5e2977ffc492 ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-21-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set 4687d7aa-8369-4ea2-a795-5e2977ffc492
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set 4687d7aa-8369-4ea2-a795-5e2977ffc492
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows 7 (loader) (on /dev/sdd1)" {
insmod ntfs
set root='(hd3,1)'
search --no-floppy --fs-uuid --set 1894a37294a350d4
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 ###
=============================== sdd2/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/sdd2 during installation
UUID=4687d7aa-8369-4ea2-a795-5e2977ffc492 / ext4 errors=remount-ro 0 1
# swap was on /dev/sdd3 during installation
UUID=063fc3d4-6dd5-46a2-9be0-d73eeb9647ac none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
=================== sdd2: Location of files loaded by Grub: ===================
77.9GB: boot/grub/core.img
78.9GB: boot/grub/grub.cfg
78.5GB: boot/initrd.img-2.6.32-21-generic
79.0GB: boot/vmlinuz-2.6.32-21-generic
78.5GB: initrd.img
79.0GB: vmlinuz
hello,noigan. I THINK this is the most easy way for you :
First: Use Win7 install disk in rescue mode ,and make sure win7 can be boot.
Second: install easyBCD.
Third: add grub session in Win7 boot menu using easyBCD.
Four: reboot, and see what added in Win7 boot menu.
BILLYKANE, yes, if nothing else hepls, I'll have to use the Windows boot loader instead of Grub. But before I'd like to solve this - don't want my very first Linux experience to become a failure
syg00, installing Windows before Linux is recommended here, for example. Is this advice bad or is the way I created partitions?
Doing Windows first is the usual recommendation. That guide is really a bit poor for a Ubuntu site. It makes reference to another section ("Finishing Ubuntu Installation") that doesn't exist.
You did continue with the install I hope ?. If you stopped (rebooted) after the partitioning, that might explain this result.
syg00, I used only the advice to install Windows first from the above guide and some others. Of course, I passed the steps of introducing myself to the OS, docs and settings importing (with nothing to import) and rebooted only when the installer told me it was done with the installation.
Sorry - looking again at that RESULTS.txt, that was a stupid question of mine.
However, it looks like you may have attempted to install grub4dos. We need to know everything you attempted, and which howto you used.
Do you want to keep going with the Linux install, or abandon it and simply get Win7 back booting ?.
I used this manual, it differs from this one mostly in the Prepare disk space section. I also tried to install a boot loader (Step8, the Advanced button) to the sdd-disk and later to its sdd2 partition.
Right now I am able to restore the Windows MBR (and have already done so), but again, I want to get Ubuntu loading and working.
Right now I am able to restore the Windows MBR (and have already done so), but again, I want to get Ubuntu loading and working.
Glad to hear it - too many new users just want to give up.
I can't explain what's happening - where did you get the Ubuntu CD ?.
I was about to suggest the link win29 posted (here). But you'd need confidence the liveCD is good. Install to /dev/sdd (the device) - grub2 doesn't really like being installed into a partition (unlike legacy grub). The design doesn't allow grub2 to fit in the boot sector record - also causes issues on gpt disks.
Last edited by syg00; 09-27-2010 at 06:44 AM.
Reason: Added url
syg00, I already tried to install Grub2 to /dev/sdd - that made no difference.
The .iso was downloaded from a local tracker, its md5 sum is equal to the one from here.
I have already tried this guide to reinstall Grub2 - it didn't help because sudo update-grub in the liveCD mode gives the "cannot find a device for / (is /dev mounted?)" error message.
My best guess was that the partition with Ubuntu's /boot is too far from the disk' start (considering this and info from several other sources).
I tried installing Grub2 to the sda MBR, which let me into a just-grub (not the Resque one) prompt. From there I realised grub doesn't distinguish the filesystems of the non-first partitions of the *problem* disk. And the all the partitions of all other disks are visible well enough.
sdb3 partition is *130 gb far fron the sdd disk start, so the problem is most likely about sdd disk being a sata one. All the disks' size is visible in full by the bios and OSes, so the problem not in LBA-like settings and its support. Some people suggested that the problem is that my bios doesn't support AHCI-mode for sata drives (IMHO, it's most likely so).
And I ended up moving the Win7 partition to the right of the hdd, creating a partition before it and installing Ubunto to it.
============================= Boot Info Summary: ==============================
=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #5 for (,msdos5)/boot/grub.
=> Syslinux is installed in the MBR of /dev/sdb
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System: Windows Vista
Boot files/dirs: /bootmgr /boot/bcd /Windows/System32/winload.exe
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/dirs: /Windows/System32/winload.exe
File system: ntfs
Boot sector type: Windows Vista/7
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs: /bootmgr
File system: vfat
Boot sector type: Fat32
Boot sector info: According to the info in the boot sector, sdb2 starts
at sector 0. But according to the info from fdisk,
sdb2 starts at sector 2048.
Operating System:
Boot files/dirs:
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