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Old 02-17-2011, 01:10 PM   #1
farna
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Install Problem: Not finding boot device (Mint 10)


It seems this is an inherent Ubuntu error, but the fixes I tried for that don't work. I've posted about this on the LinuxMint.com forums but haven't got an answer yet. I've edited my posts somewhat below -- can anyone help here?
------------------------
Post by farna on Fri Feb 11, 2011 10:59 am
I have installed Min 10 on an Athlon 2 GHz machine (Athlon XP 2400+ processor, FIC AZ31 motherboard). Apparently the MB or HD is a bit slow (HD ~ 1 year old). I'm getting an error when booting saying that the root device can't be found, and get pushed to a shell. There are two possible solutions also given on screen --

check rootdelay= (did the system wait long enough?)
check root= (did the system wait for the right device?)
Missing modules ( cat /proc/modules; ls /dev)
ALERT! (root drive ID) does not exist, dropping to a shell

This machine worked perfectly with Mint 7, I was just trying an upgrade. I am assuming the rootdelay is the most likely culprit. How do I change this from the shell?
*Note: original post said 900 MHz Athlon -- I upgraded processor over weekend to the 2400+
-------------

by farna on Fri Feb 11, 2011 5:43 pm
I've searched the forum and it seems that adding or extending the wait time is the answer -- but how? I've seen references to a "/boot/grub/grub.cfg" file and a "/boot/grub/menu.lst" file. I don't have either on my system. I have booted with the install CD and can read the hard drive (only one in system) and all partitions just fine. Fdisk -l works too. How do I add a bigger rootdelay??

Found this on an Ubuntu forum:
Users have reported slower than normal detection of SATA hard drives on systems with Intel D945 motherboards in Ubuntu 8.10. This may cause the system to drop to a busybox initramfs shell on boot with a "Gave up waiting for root device." error. Wait a minute or two and then exit the initramfs shell by typing 'exit'. Booting should proceed normally. If it doesn't, wait a bit longer and try again. Once the system boots, edit /boot/grub/menu.lst and add rootdelay=90 to the kernel stanza for your current kernel.

Only problem is my system won't boot after waiting a minute or two... or an hour or two either.... so I can't add the rootdelay.
-----------------------

by farna on Sat Feb 12, 2011 6:15 pm
Okay, investigated the bug. Found this site with a cure: https://bugs.launchpad.net/ubuntu/+bug/518582
The cure is simple --
Boot from the Ubuntu LiveCD and create a file on the affected partition:

sudo mount /dev/sda1 /mnt
sudo touch /mnt/empty_file

This solution works for an ext4 filesystem.

Only it doesn't work for me. I can't mount /dev/sda1. It's there, I booted from the live CD and checked with gparted. Gparted says "Couldn't find filesystem superblock". I opened a terminal and tried to mount /dev/sda1. Mount returns an error -- "special device /dev/sda1 does not exist". Well, it's there -- gparted finds it...

Can anyone help with this problem? I might just have to go back to Mint 7 or 8. Mint 7 worked perfectly on this machine. I really want to put Mint 10 on it though. This is mainly a dress rehearsal for upgrading a couple other machines -- which I won't do if this can't be solved. May as well buy something in a box that works. That would make my wife happy -- could then instant view with Netflix.
------------------------------

by farna on Mon Feb 14, 2011 5:34 pm
Is no one else having this problem?

I ruled out a hardware failure. Reinstalled Mint 7 and it runs perfectly. It seems like the problem is with the ext4 file system, especially with older hardware. I'm going to try to install Mint 10 with an ext3 file system and see if that helps.
-------------------------

by farna on Wed Feb 16, 2011 6:17 pm
I downloaded another Mint 10 ISO and tried that. No luck. Is this computer not enough power to run Mint 10??

Athlon XP 2.0 GHz (2400+), 1GB RAM.

The Live CD boots and runs okay half the time. After running a little while it will hang up. Used a different computer and ISO image for the last CD, and it seems to be worse as far as hanging up than the first one.
------------------------------

by farna on Thu Feb 17, 2011 11:02 am
I'm not getting any help here, but will continue posting in case I figure out the problem.
I downloaded yet another ISO image, this time from a European mirror. It seems to boot better. I installed it, but get the same error as the other installs. One thing I did note that might help someone though -- double clicking on the "Install" icon on the desktop usually bombs out. The computer tries to do something and quits, returning to the desktop. If I select "Install Mint 10" from the menu, however, it works fine.

Since the problem appears to be in the ext4 file system, I booted from the live CD and reformated the partitions using gparted to ext3.

I then proceeded to install Mint 10. Rebooted and get the same error as in the first post! So the ext4 file system isn't the problem, as the Ubuntu board alluded. It has to be in the Mint 10 (or Ubuntu) loader.
------------------------------

Okay, anyone have any bright ideas???

Last edited by farna; 02-17-2011 at 01:12 PM.
 
Old 02-17-2011, 01:21 PM   #2
andrewthomas
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Boot from a liveCD and reinstall grub2 using these instructions:

https://help.ubuntu.com/community/Gr...0from%20LiveCD

use METHOD 3 - CHROOT

before exiting the chroot update your initrd with

Code:
update-initramfs -u -k all
then update grub again

Code:
update-grub
and exit chroot with <CTL>-d or type exit
 
Old 02-18-2011, 04:27 PM   #3
farna
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This didn't work. I can't mount /dev/sda1 (my root/boot hard drive). fdisk -l finds the drive, the extended partition, and the swap file partition, but when I try to mount the drive I get a "special device doesn't exist" error.
 
Old 02-20-2011, 06:54 PM   #4
andrewthomas
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Go to

http://bootinfoscript.sourceforge.net/

Follow the instructions and post the results with your reply
 
Old 02-20-2011, 08:12 PM   #5
Larry Webb
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You keep saying trying to mount the drive after you have already mounted it, try this and see if it will help you.

sudo umount /dev/sda1

sudo mkdir /mnt/sda1

sudo mount /dev/sda1 /mnt/sda1

Now using the /mnt/sda1 will take you to the partition of sda1, I do not understand what you intend to do once you are there. Your computer should have enough to run ubuntu 10.10. I do not understand, if Mint 10 works then ubuntu should work. Use Mint, it uses ubuntu repositories I believe and they say a remake of ubuntu. The motherboard may be old enough to give some I/O errors. I would rather think that ubuntu may have a different default monitor resolution or frequency that is causing your problem.

Last edited by Larry Webb; 02-20-2011 at 08:15 PM.
 
Old 02-21-2011, 05:01 AM   #6
farna
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I'll see if I can get the Boot Info Script downloaded on the machine in the next few days.

Larry, I never mounted the drive. I can install and run Mint 7 with no problems at all. The video card and monitor are fairly recent, that's not an issue. Mint 10 (based on Ubuntu 10.10) boots and runs from the Live CD with no issues. It just won't install and boot. Once running from the Live CD Mint 10 doesn't find the hard drive. fdisk does, but Mint 10 won't mount the hard drive. It installs from the Live CD with no errors reported.
 
Old 02-21-2011, 06:25 AM   #7
Larry Webb
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I ran into a similar problem with a Suse install on an computer I believe it was an intel 915 but not sure. On their install on Suse 11.3 they use a 1440 X 900 resolution that my monitor would not handle. You can adjust this before the install. The boot info script would be the first thing to look at.

Last edited by Larry Webb; 02-21-2011 at 06:27 AM.
 
Old 02-21-2011, 08:23 PM   #8
farna
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Larry, screen resolution doesn't appear to be an issue. The Live CD boots fine and uses a high resolution --1280x1024, 17" LCD monitor, Radeon 9200 Pro video card (I think it's 256MB).

Andrew, the results from boot_info_script is below. It says something about Windows being installed, but Windows has never been installed on the hard drive in this computer as far as I can recall. I had to replace the HD shortly after I started running Mint 7, and never installed anything else on it. I'm new to dealing with Linux much on this level, don't really know what I'm looking at/for here!!



Boot Info Script 0.55 dated February 15th, 2010

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

=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #1 for (,msdos1)/boot/grub.
=> Windows is installed in the MBR of /dev/sdc

sda1: _________________________________________________________________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''

sda2: _________________________________________________________________________

File system: Extended Partition
Boot sector type: Unknown
Boot sector info:

sda5: _________________________________________________________________________

File system:
Boot sector type: Unknown
Boot sector info:
Mounting failed:
mount: unknown filesystem type ''
mount: unknown filesystem type ''

sdc1: _________________________________________________________________________

File system: vfat
Boot sector type: Unknown
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

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

Drive: sda ___________________ _____________________________________________________

Disk /dev/sda: 122.9 GB, 122942324736 bytes
255 heads, 63 sectors/track, 14946 cylinders, total 240121728 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 * 2,048 239,933,439 239,931,392 83 Linux
/dev/sda2 239,935,486 240,119,807 184,322 5 Extended
/dev/sda5 239,935,488 240,119,807 184,320 82 Linux swap / Solaris


Drive: sdc ___________________ _____________________________________________________

Disk /dev/sdc: 517 MB, 517521408 bytes
128 heads, 32 sectors/track, 246 cylinders, total 1010784 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 * 32 1,010,782 1,010,751 4 FAT16 <32M


blkid -c /dev/null: ____________________________________________________________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda: PTTYPE="dos"
/dev/sdc1 vfat LEXAR MEDIA
/dev/sdc: PTTYPE="dos"
error: /dev/sda1: No such file or directory
error: /dev/sda2: No such file or directory
error: /dev/sda5: No such file or directory
error: /dev/sdb: No medium found

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

aufs / aufs (rw)
/dev/sr1 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdc1 /media/LEXAR MEDIA vfat (rw,nosuid,nodev,uhelper=udisks,uid=999,gid=999,shortname=mixed,dmask=0077,utf8=1,showexec,flush)

=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on sda1


Unknown BootLoader on sda2


Unknown BootLoader on sda5


Unknown BootLoader on sdc1

00000000 eb 3c 90 4d 53 57 49 4e 34 2e 31 00 02 10 01 00 |.<.MSWIN4.1.....|
00000010 02 00 02 00 00 f8 f7 00 20 00 80 00 20 00 00 00 |........ ... ...|
00000020 3f 6c 0f 00 80 00 29 00 00 00 00 4e 4f 20 4e 41 |?l....)....NO NA|
00000030 4d 45 20 20 20 20 46 41 54 31 36 20 20 20 33 c9 |ME FAT16 3.|
00000040 8e d1 bc fc 7b 16 07 bd 78 00 c5 76 00 1e 56 16 |....{...x..v..V.|
00000050 55 bf 22 05 89 7e 00 89 4e 02 b1 0b fc f3 a4 06 |U."..~..N.......|
00000060 1f bd 00 7c c6 45 fe 0f 38 4e 24 7d 20 8b c1 99 |...|.E..8N$} ...|
00000070 e8 7e 01 83 eb 3a 66 a1 1c 7c 66 3b 07 8a 57 fc |.~...:f..|f;..W.|
00000080 75 06 80 ca 02 88 56 02 80 c3 10 73 ed 33 c9 fe |u.....V....s.3..|
00000090 06 d8 7d 8a 46 10 98 f7 66 16 03 46 1c 13 56 1e |..}.F...f..F..V.|
000000a0 03 46 0e 13 d1 8b 76 11 60 89 46 fc 89 56 fe b8 |.F....v.`.F..V..|
000000b0 20 00 f7 e6 8b 5e 0b 03 c3 48 f7 f3 01 46 fc 11 | ....^...H...F..|
000000c0 4e fe 61 bf 00 07 e8 28 01 72 3e 38 2d 74 17 60 |N.a....(.r>8-t.`|
000000d0 b1 0b be d8 7d f3 a6 61 74 3d 4e 74 09 83 c7 20 |....}..at=Nt... |
000000e0 3b fb 72 e7 eb dd fe 0e d8 7d 7b a7 be 7f 7d ac |;.r......}{...}.|
000000f0 98 03 f0 ac 98 40 74 0c 48 74 13 b4 0e bb 07 00 |.....@t.Ht......|
00000100 cd 10 eb ef be 82 7d eb e6 be 80 7d eb e1 cd 16 |......}....}....|
00000110 5e 1f 66 8f 04 cd 19 be 81 7d 8b 7d 1a 8d 45 fe |^.f......}.}..E.|
00000120 8a 4e 0d f7 e1 03 46 fc 13 56 fe b1 04 e8 c2 00 |.N....F..V......|
00000130 72 d7 ea 00 02 70 00 52 50 06 53 6a 01 6a 10 91 |r....p.RP.Sj.j..|
00000140 8b 46 18 a2 26 05 96 92 33 d2 f7 f6 91 f7 f6 42 |.F..&...3......B|
00000150 87 ca f7 76 1a 8a f2 8a e8 c0 cc 02 0a cc b8 01 |...v............|
00000160 02 80 7e 02 0e 75 04 b4 42 8b f4 8a 56 24 cd 13 |..~..u..B...V$..|
00000170 61 61 72 0a 40 75 01 42 03 5e 0b 49 75 77 c3 03 |aar.@u.B.^.Iuw..|
00000180 18 01 27 0d 0a 49 6e 76 61 6c 69 64 20 73 79 73 |..'..Invalid sys|
00000190 74 65 6d 20 64 69 73 6b ff 0d 0a 44 69 73 6b 20 |tem disk...Disk |
000001a0 49 2f 4f 20 65 72 72 6f 72 ff 0d 0a 52 65 70 6c |I/O error...Repl|
000001b0 61 63 65 20 74 68 65 20 64 69 73 6b 2c 20 61 6e |ace the disk, an|
000001c0 64 20 74 68 65 6e 20 70 72 65 73 73 20 61 6e 79 |d then press any|
000001d0 20 6b 65 79 0d 0a 00 00 49 4f 20 20 20 20 20 20 | key....IO |
000001e0 53 59 53 4d 53 44 4f 53 20 20 20 53 59 53 7f 01 |SYSMSDOS SYS..|
000001f0 00 41 bb 00 07 60 66 6a 00 e9 3b ff 00 00 55 aa |.A...`fj..;...U.|
00000200


=======Devices which don't seem to have a corresponding hard drive==============

sdb
=============================== StdErr Messages: ===============================

hexdump: /dev/sda1: No such file or directory
hexdump: /dev/sda1: No such file or directory
hexdump: /dev/sda2: No such file or directory
hexdump: /dev/sda2: No such file or directory
hexdump: /dev/sda5: No such file or directory
hexdump: /dev/sda5: No such file or directory
 
Old 02-21-2011, 10:43 PM   #9
andrewthomas
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Have you tried adding a file system parameter?

Code:
sudo mount -t ext4 /dev/sda1 /mnt
If it doesn't work, your best bet may be to zero out the drive and start fresh.
 
Old 02-22-2011, 12:45 AM   #10
syg00
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Do you still have the Mint 7 CD ?. Run that up and re-run the bootinfoscript. A quick look at the script makes it appear that it relies fairly heavily on the blkid output.
 
Old 02-24-2011, 08:24 AM   #11
farna
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Syg00, here is the Boot Info for Mint 7. I booted from the Mint 7 LiveCD then ran the script, Mint 7 wasn't installed. Note that Mint 10 is reported as the OS installed on /sda1. Do I need to install Mint 7 then run the script?

-------------------------------------------------------------------------

Boot Info Script 0.55 dated February 15th, 2010

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

=> Grub 2 is installed in the MBR of /dev/sda and looks on the same drive in
partition #1 for (,msdos1)/boot/grub.
=> Windows is installed in the MBR of /dev/sdc

sda1: _________________________________________________________________________

File system: ext3
Boot sector type: -
Boot sector info:
Operating System: Linux Mint 10 Julia
Boot files/dirs: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sda2: _________________________________________________________________________

File system: Extended Partition
Boot sector type: -
Boot sector info:

sda5: _________________________________________________________________________

File system: swap
Boot sector type: -
Boot sector info:

sdc1: _________________________________________________________________________

File system: vfat
Boot sector type: Unknown
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files/dirs:

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

Drive: sda ___________________ _____________________________________________________

Disk /dev/sda: 122.9 GB, 122942324736 bytes
255 heads, 63 sectors/track, 14946 cylinders, total 240121728 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x00082a15

Partition Boot Start End Size Id System

/dev/sda1 * 2,048 239,933,439 239,931,392 83 Linux
/dev/sda2 239,935,486 240,119,807 184,322 5 Extended
/dev/sda5 239,935,488 240,119,807 184,320 82 Linux swap / Solaris


Drive: sdc ___________________ _____________________________________________________

Disk /dev/sdc: 517 MB, 517521408 bytes
128 heads, 32 sectors/track, 246 cylinders, total 1010784 sectors
Units = sectors of 1 * 512 = 512 bytes
Disk identifier: 0x3e364d10

Partition Boot Start End Size Id System

/dev/sdc1 * 32 1,010,782 1,010,751 4 FAT16 <32M


blkid -c /dev/null: ____________________________________________________________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/sda1 ddb67353-2463-477a-a28e-7989377cb35f ext3
/dev/sda5 ef1c9b1b-2aab-4dd5-a210-6be77b42c071 swap
/dev/sdc1 0000-0000 vfat LEXAR MEDIA

============================ "mount | grep ^/dev output: ===========================

Device Mount_Point Type Options

rootfs / rootfs (rw)
/dev/sr0 /cdrom iso9660 (ro,noatime)
/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdc1 /media/LEXAR MEDIA vfat (rw,nosuid,nodev,uhelper=hal,shortname=mixed,uid=999,utf8,umask=077,flush)


=========================== sda1/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 part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
fi
terminal_output gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
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/06_mint_theme ###
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
insmod png
if background_image /boot/grub/linuxmint.png ; then
set color_normal=white/black
set color_highlight=white/light-gray
else
set menu_color_normal=white/black
set menu_color_highlight=white/light-gray
fi
### END /etc/grub.d/06_mint_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Linux Mint 10, 2.6.35-22-generic (/dev/sda1)' --class linuxmint --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=ddb67353-2463-477a-a28e-7989377cb35f ro quiet splash
initrd /boot/initrd.img-2.6.35-22-generic
}
menuentry 'Linux Mint 10, 2.6.35-22-generic (/dev/sda1) -- recovery mode' --class linuxmint --class gnu-linux --class gnu --class os {
recordfail
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
echo 'Loading Linux 2.6.35-22-generic ...'
linux /boot/vmlinuz-2.6.35-22-generic root=UUID=ddb67353-2463-477a-a28e-7989377cb35f ro single
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.35-22-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_lupin ###
### 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+ ###
menuentry "Memory test (memtest86+)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set ddb67353-2463-477a-a28e-7989377cb35f
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
if [ "x${timeout}" != "x-1" ]; then
if keystatus; then
if keystatus --shift; then
set timeout=-1
else
set timeout=0
fi
else
if sleep --interruptible 3 ; then
set timeout=0
fi
fi
fi
### 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 ###

=============================== sda1/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/sda1 during installation
UUID=ddb67353-2463-477a-a28e-7989377cb35f / ext3 errors=remount-ro 0 1
/dev/sda5 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0

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


7.4GB: boot/grub/core.img
7.4GB: boot/grub/grub.cfg
7.4GB: boot/initrd.img-2.6.35-22-generic
7.5GB: boot/vmlinuz-2.6.35-22-generic
7.4GB: initrd.img
7.5GB: vmlinuz
=========================== Unknown MBRs/Boot Sectors/etc =======================

Unknown BootLoader on sdc1

00000000 eb 3c 90 4d 53 57 49 4e 34 2e 31 00 02 10 01 00 |.<.MSWIN4.1.....|
00000010 02 00 02 00 00 f8 f7 00 20 00 80 00 20 00 00 00 |........ ... ...|
00000020 3f 6c 0f 00 80 00 29 00 00 00 00 4e 4f 20 4e 41 |?l....)....NO NA|
00000030 4d 45 20 20 20 20 46 41 54 31 36 20 20 20 33 c9 |ME FAT16 3.|
00000040 8e d1 bc fc 7b 16 07 bd 78 00 c5 76 00 1e 56 16 |....{...x..v..V.|
00000050 55 bf 22 05 89 7e 00 89 4e 02 b1 0b fc f3 a4 06 |U."..~..N.......|
00000060 1f bd 00 7c c6 45 fe 0f 38 4e 24 7d 20 8b c1 99 |...|.E..8N$} ...|
00000070 e8 7e 01 83 eb 3a 66 a1 1c 7c 66 3b 07 8a 57 fc |.~...:f..|f;..W.|
00000080 75 06 80 ca 02 88 56 02 80 c3 10 73 ed 33 c9 fe |u.....V....s.3..|
00000090 06 d8 7d 8a 46 10 98 f7 66 16 03 46 1c 13 56 1e |..}.F...f..F..V.|
000000a0 03 46 0e 13 d1 8b 76 11 60 89 46 fc 89 56 fe b8 |.F....v.`.F..V..|
000000b0 20 00 f7 e6 8b 5e 0b 03 c3 48 f7 f3 01 46 fc 11 | ....^...H...F..|
000000c0 4e fe 61 bf 00 07 e8 28 01 72 3e 38 2d 74 17 60 |N.a....(.r>8-t.`|
000000d0 b1 0b be d8 7d f3 a6 61 74 3d 4e 74 09 83 c7 20 |....}..at=Nt... |
000000e0 3b fb 72 e7 eb dd fe 0e d8 7d 7b a7 be 7f 7d ac |;.r......}{...}.|
000000f0 98 03 f0 ac 98 40 74 0c 48 74 13 b4 0e bb 07 00 |.....@t.Ht......|
00000100 cd 10 eb ef be 82 7d eb e6 be 80 7d eb e1 cd 16 |......}....}....|
00000110 5e 1f 66 8f 04 cd 19 be 81 7d 8b 7d 1a 8d 45 fe |^.f......}.}..E.|
00000120 8a 4e 0d f7 e1 03 46 fc 13 56 fe b1 04 e8 c2 00 |.N....F..V......|
00000130 72 d7 ea 00 02 70 00 52 50 06 53 6a 01 6a 10 91 |r....p.RP.Sj.j..|
00000140 8b 46 18 a2 26 05 96 92 33 d2 f7 f6 91 f7 f6 42 |.F..&...3......B|
00000150 87 ca f7 76 1a 8a f2 8a e8 c0 cc 02 0a cc b8 01 |...v............|
00000160 02 80 7e 02 0e 75 04 b4 42 8b f4 8a 56 24 cd 13 |..~..u..B...V$..|
00000170 61 61 72 0a 40 75 01 42 03 5e 0b 49 75 77 c3 03 |aar.@u.B.^.Iuw..|
00000180 18 01 27 0d 0a 49 6e 76 61 6c 69 64 20 73 79 73 |..'..Invalid sys|
00000190 74 65 6d 20 64 69 73 6b ff 0d 0a 44 69 73 6b 20 |tem disk...Disk |
000001a0 49 2f 4f 20 65 72 72 6f 72 ff 0d 0a 52 65 70 6c |I/O error...Repl|
000001b0 61 63 65 20 74 68 65 20 64 69 73 6b 2c 20 61 6e |ace the disk, an|
000001c0 64 20 74 68 65 6e 20 70 72 65 73 73 20 61 6e 79 |d then press any|
000001d0 20 6b 65 79 0d 0a 00 00 49 4f 20 20 20 20 20 20 | key....IO |
000001e0 53 59 53 4d 53 44 4f 53 20 20 20 53 59 53 7f 01 |SYSMSDOS SYS..|
000001f0 00 41 bb 00 07 60 66 6a 00 e9 3b ff 00 00 55 aa |.A...`fj..;...U.|
00000200


=======Devices which don't seem to have a corresponding hard drive==============

sdb
 
Old 02-24-2011, 01:48 PM   #12
andrewthomas
Senior Member
 
Registered: May 2010
Location: Chicago Metro
Distribution: Arch, Gentoo, Slackware
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Quote:
Originally Posted by andrewthomas View Post
Have you tried adding a file system parameter?

Code:
sudo mount -t ext4 /dev/sda1 /mnt
If it doesn't work, your best bet may be to zero out the drive and start fresh.
I see from your post that sda1 is ext3, so if you try to mount with:

Code:
sudo mount -t ext3 /dev/sda1 /mnt
Does it mount?
 
Old 02-25-2011, 02:17 AM   #13
syg00
LQ Veteran
 
Registered: Aug 2003
Location: Australia
Distribution: Lots ...
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Quote:
Originally Posted by farna View Post
Syg00, here is the Boot Info for Mint 7. I booted from the Mint 7 LiveCD then ran the script, Mint 7 wasn't installed. Note that Mint 10 is reported as the OS installed on /sda1. Do I need to install Mint 7 then run the script?
Nope, that's fine.
Shows that Mint7 can read everything o.k. - must be a problem with mint 10 (I run it {N.B. - LMDE} with btrfs o.k. BTW). Raise a bug against it.

Last edited by syg00; 02-25-2011 at 02:43 AM. Reason: LMDE clarification
 
Old 02-26-2011, 08:23 AM   #14
farna
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Distribution: Mint
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No, still doesn't mount! I get "special device sda1 does not exist". That's when booting from the Mint 10 LiveCD. Mint 11 is supposed to come out in May, so I think I'm just going to give up on 10 and wait for it.
 
Old 03-01-2011, 10:39 AM   #15
seanaustin
LQ Newbie
 
Registered: Feb 2010
Posts: 16

Rep: Reputation: 1
Just for giggles, what is the output of 'mount' with no arguments from the liveCD environment?
 
  


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