Filesystem problems...?

[owenisred]

Hi I can no longer get into ubuntu - when I try to, I get

No filesystem could mount root tried ext3, ext2, ext4,
Unable to mount root fs on unknown block (8,1)

I'm still pretty new to linux so i wont understand much techy stuff sorry - any idea what the solution is?

Thanks guys,
Owen.

[presence1960]

Let's get a better look at your setup & boot process. Boot the Ubuntu Live CD/USB. Choose "try ubuntu without any changes", when the desktop loads come back here and use the link in my signature to download the Boot Info Script to the desktop. Once on desktop open a terminal (Applications > Accessories > Terminal) and run this command
sudo bash ~/Desktop/boot_info_script*.sh This will create a RESULTS.txt file on the desktop. Paste the entire contents of that file back here. Once pasted highlight all text and click the # sign on the toolbar to place code tags around the text.

[owenisred]

Thanks for the quick reply - terminal didnt want to let me do what you asked tho :(

owen@ubuntu:~$ sudo bash ~/Desktop/boot_info_script*.sh
bash: /home/owen/Desktop/boot_info_script*.sh: No such file or directory
owen@ubuntu:~$

Is what i got :(

[presence1960]

Thanks for the quick reply - terminal didnt want to let me do what you asked tho :(

owen@ubuntu:~$ sudo bash ~/Desktop/boot_info_script*.sh
bash: /home/owen/Desktop/boot_info_script*.sh: No such file or directory
owen@ubuntu:~$

Is what i got :(

after you download the file move it to desktop then run that command

[owenisred]

sorry for taking so long

heres the results - idk what any of it means - hope you can interpret :)

============================= Boot Info Summary: ==============================

=> Windows is installed in the MBR of /dev/sda
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
/ubuntu/winboot/wubildr.mbr /ubuntu/disks/root.disk
/ubuntu/disks/swap.disk

sda1/Wubi: __________________________________________________ _______________________

File system: ext4
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 9.10
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab

=========================== Drive/Partition Info: =============================

Drive: sda ___________________ __________________________________________________ ___

Disk /dev/sda: 40.0 GB, 40000000000 bytes
255 heads, 63 sectors/track, 4863 cylinders, total 78125000 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x9dc96e9e

Partition Boot Start End Size Id System

/dev/sda1 * 63 78,108,029 78,107,967 7 HPFS/NTFS


blkid -c /dev/null: __________________________________________________ __________

sda1: UUID="32284242284204F7" TYPE="ntfs"
sda1/Wubi: UUID="4e83e3a3-4a90-4415-a546-50c8f9b7faa4" TYPE="ext4"

=============================== "mount" output: ===============================

aufs on / type aufs (rw)
none on /proc type proc (rw,noexec,nosuid,nodev)
none on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
/dev/sr0 on /cdrom type iso9660 (rw)
/dev/loop0 on /rofs type squashfs (rw)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
none on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
none on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev)
none on /var/run type tmpfs (rw,nosuid,mode=0755)
none on /var/lock type tmpfs (rw,noexec,nosuid,nodev)
none on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
gvfs-fuse-daemon on /home/ubuntu/.gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,user=ubuntu)


================================ sda1/boot.ini: ================================

[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOW S
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /fastdetect /NoExecute=OptIn
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Professional" /fastdetect
C:\wubildr.mbr = "Ubuntu"

======================== sda1/Wubi/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 /boot/grub/grubenv ]; then
have_grubenv=true
load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
saved_entry=${prev_saved_entry}
save_env saved_entry
prev_saved_entry=
save_env prev_saved_entry
fi
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/white
### 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 2.6.31-17-generic" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-17-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.31-17-generic
}
menuentry "Ubuntu, Linux 2.6.31-17-generic (recovery mode)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-17-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.31-17-generic
}
menuentry "Ubuntu, Linux 2.6.31-16-generic" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-16-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.31-16-generic
}
menuentry "Ubuntu, Linux 2.6.31-16-generic (recovery mode)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-16-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.31-16-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-14-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-14-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_lupin ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows NT/2000/XP (loader) (on /dev/sda1)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
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 ###

============================= sda1/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 defaults 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/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0

================= sda1/Wubi: Location of files loaded by Grub: =================


.0GB: boot/grub/grub.cfg
.0GB: boot/initrd.img-2.6.31-14-generic
.0GB: boot/initrd.img-2.6.31-16-generic
.0GB: boot/initrd.img-2.6.31-17-generic
.0GB: boot/vmlinuz-2.6.31-14-generic
.0GB: boot/vmlinuz-2.6.31-16-generic
.0GB: boot/vmlinuz-2.6.31-17-generic
.0GB: initrd.img
.0GB: initrd.img.old
.0GB: vmlinuz
.0GB: vmlinuz.old

[presence1960]

You use wubi, I am not very knowledgeable about wubi installations. I did notice something amiss from your wubi grub.cfg file . I am not sure because you installed via wubi but in a full install the #'s in red should be the UUID of the Ubuntu partition. see here:


menuentry "Ubuntu, Linux 2.6.31-17-generic" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-17-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.31-17-generic
}
menuentry "Ubuntu, Linux 2.6.31-17-generic (recovery mode)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-17-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.31-17-generic
}
menuentry "Ubuntu, Linux 2.6.31-16-generic" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-16-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.31-16-generic
}
menuentry "Ubuntu, Linux 2.6.31-16-generic (recovery mode)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-16-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.31-16-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-14-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
insmod ntfs
set root=(hd0,1)
search --no-floppy --fs-uuid --set 32284242284204f7
loopback loop0 /ubuntu/disks/root.disk
set root=(loop0)
linux /boot/vmlinuz-2.6.31-14-generic root=/dev/sda1 loop=/ubuntu/disks/root.disk ro single
initrd /boot/initrd.img-2.6.31-14-generic
}

Now compare the numbers in red to your ubuntu UUID from the script output:



blkid -c /dev/null: __________________________________________________ __________

sda1: UUID="32284242284204F7" TYPE="ntfs"
sda1/Wubi: UUID="4e83e3a3-4a90-4415-a546-50c8f9b7faa4" TYPE="ext4"

Unfortunately I do not know enough about wubi to tell you how to make that change. But if wubi grub.cfg works like the full install of Ubuntu that is your problem.

[owenisred]

Thanks a lot anyway!

Anyone have any ideas?

[owenisred]

please?

[presence1960]

please?

I would suggest uninstalling wubi from windows and booting the Live CD and doing a full install of Ubuntu. Wubi is not meant to be a permanent install anyway but rather a trial to see if you like it before committing to partitioning your hard disk.

Wubi has some quirks and problems especially in 9.10. It is more difficult getting help for wubi as the majority of ubuntu users do not use it.

[mlsquad]

I'd second that the Karmic via Wubi is not very stable. Every kernel update leaves me with an unbootable machine, and I can only boot with the 14-generic kernel.
I believe these problems are mostly due to issues with Grub2 and Wubi playing nicely together.