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rated 0 times [  3] [ 0]  / answers: 1 / hits: 61276  / 2 Years ago, thu, july 21, 2022, 7:13:55

i'm trying to install Ubuntu.
I don't know if it is important, but i'm trying to install it on external HDD.



In the end i have external bootable HDD which only displays:



error: file not found
grub recovery>


From the beginning:




  • I've downloaded ubuntu-12.04-desktop-i386.iso

  • I've used LiLi USB Creator (LinuxLive) to create bootable pendrive from that image

  • I've bootet from it, it works

  • I've clicked "Try ubuntu", it works too.



I've used GParted to look over drivers (disks)



My primary embedded disk is seen as /dev/sda



My attached external disk as /dev/sdb



My PenDrive as /dev/sdc




  • I've created partitions on /dev/sdb


  • Fist partition for system (over 200GiB)


  • Second was there already (it's xsf, and i don't want to touch it :P)

  • Third is extended partition, with 1 locital partiton (10GiB) for swap


  • I've started installation


  • i've choose "somethin else" in ... i belive secound screeb

  • then is selected /dev/sdb as boot disk

  • for first partiton of /dev/sdb i set i want ext3 file system, i've check "formattin" checkbox, and mount path set to "/"

  • firs logical partiton set as swap partition



After installation finished, i restarted my computer.
When i boot from my primary disc it's work ok, my previous operating system - vista - works ok.
When i set my BIOS to boot from my external disc, i only get that message:



error: file not found
grub recovery>



  • I've try to reinstall it, but didn't help...



In desperation, i've try to read a bit about that "grub recovery>" command-line and experiment a bit...
I'm not sure if this has had any point, or if it give you some information (notice, that i don't know what i'm doing :P )



when i've type command:



insmod (hd1,1)/boot/grub/linux.mod


i've get message:



unknown filesystem


the same with:



insmod (hd1,msdos1)/boot/grub/linux.mod


the same with:



insmod ext3


but i get no message after command:



insmod ext2


...



notice that i really don't know what this command exactly do,
but than i thought that maybe if i reinstall ubuntu with ext2 filesystem, it will work.
I've done that, but symptoms are the same.



I've go back to that Live version of ubuntu, filesystem and basics directories seems to be present on /dev/sdb1 ... i'm completely unfamiliar with GRUB. I'm also don't know which wersion of GRUB it is, i hope there is only one version on ubuntu-12.04-desktop-i386.iso



Any help? Thax



======================= edit 17.06.2012 22:05 =========================



This is RESULTS.txt from bootinfoscript



sda is my in-build HDD



sdb is external HDD (disk-destination for Ubuntu)



sdc is PenDrive with Live Ubuntu



                  Boot Info Script 0.61      [1 April 2012]


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

=> Windows is installed in the MBR of /dev/sda.
=> 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 (,msdos1)/boot/grub on this drive.
=> Syslinux MBR (4.04 and higher) is installed in the MBR of /dev/sdc.

sda1: __________________________________________________________________________

File system: vfat
Boot sector type: Windows 7: FAT32
Boot sector info: No errors found in the Boot Parameter Block.
Operating System:
Boot files: /bootmgr /boot/bcd

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 Vista
Boot files: /bootmgr /Boot/BCD /Windows/System32/winload.exe

sda3: __________________________________________________________________________

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 63.
Operating System:
Boot files:

sdb1: __________________________________________________________________________

File system: ext2
Boot sector type: -
Boot sector info:
Operating System: Ubuntu 12.04 LTS
Boot files: /boot/grub/grub.cfg /etc/fstab /boot/grub/core.img

sdb3: __________________________________________________________________________

File system: xfs
Boot sector type: -
Boot sector info:
Mounting failed: mount: /dev/sdb3: can't read superblock

sdb4: __________________________________________________________________________

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

sdb5: __________________________________________________________________________

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

sdc1: __________________________________________________________________________

File system: vfat
Boot sector type: SYSLINUX 4.04 2011-04-18
Boot sector info: Syslinux looks at sector 3250552 of /dev/sdc1 for its
second stage. SYSLINUX is installed in the directory.
The integrity check of the ADV area failed. No errors
found in the Boot Parameter Block.
Operating System:
Boot files: /syslinux/syslinux.cfg /ldlinux.sys

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

Drive: sda _____________________________________________________________________

Disk /dev/sda: 160.0 GB, 160041885696 bytes
16 heads, 63 sectors/track, 310101 cylinders, total 312581808 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 20,482,047 20,480,000 1c Hidden W95 FAT32 (LBA)
/dev/sda2 * 20,482,048 176,771,071 156,289,024 7 NTFS / exFAT / HPFS
/dev/sda3 176,771,072 312,580,095 135,809,024 f W95 Extended (LBA)
/dev/sda5 176,773,120 312,580,095 135,806,976 7 NTFS / exFAT / HPFS


Drive: sdb _____________________________________________________________________

Disk /dev/sdb: 640.1 GB, 640135028736 bytes
255 heads, 63 sectors/track, 77825 cylinders, total 1250263728 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 * 2,048 574,773,569 574,771,522 83 Linux
/dev/sdb3 574,773,570 1,208,315,584 633,542,015 7 NTFS / exFAT / HPFS
/dev/sdb4 1,208,317,950 1,229,289,471 20,971,522 f W95 Extended (LBA)
/dev/sdb5 1,208,317,952 1,229,289,471 20,971,520 82 Linux swap / Solaris


Drive: sdc _____________________________________________________________________

Disk /dev/sdc: 1971 MB, 1971322880 bytes
129 heads, 40 sectors/track, 746 cylinders, total 3850240 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 * 40 3,850,239 3,850,200 6 FAT16


"blkid" output: ________________________________________________________________

Device UUID TYPE LABEL

/dev/loop0 squashfs
/dev/loop1 7aa47a24-93a0-d54f-a03c-495cf2ee0927 ext2
/dev/sda1 3C98-AC5D vfat RECOVERY
/dev/sda2 94CA2D3CCA2D1BCC ntfs VistaOS
/dev/sda5 A2F09F72F09F4B83 ntfs DATA
/dev/sdb1 a4befd4a-f91f-4f09-9d5f-a44991ed6a2e ext2
/dev/sdb3 973a36d7-5828-4291-b455-db286cd69668 xfs
/dev/sdb5 9ce43dea-fd93-4343-969d-1243397724bd swap
/dev/sdc1 7232-C522 vfat GOODDRIVE

================================ Mount points: =================================

Device Mount_Point Type Options

/dev/loop0 /rofs squashfs (ro,noatime)
/dev/sdc1 /cdrom vfat (rw,relatime,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)


=========================== sdb1/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 ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root a4befd4a-f91f-4f09-9d5f-a44991ed6a2e
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root a4befd4a-f91f-4f09-9d5f-a44991ed6a2e
set locale_dir=($root)/boot/grub/locale
set lang=pl_PL
insmod gettext
fi
terminal_output gfxterm
if [ "${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
if background_color 44,0,30; then
clear
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
set gfxpayload="$1"
if [ "$1" = "keep" ]; then
set vt_handoff=vt.handoff=7
else
set vt_handoff=
fi
}
if [ ${recordfail} != 1 ]; then
if [ -e ${prefix}/gfxblacklist.txt ]; then
if hwmatch ${prefix}/gfxblacklist.txt 3; then
if [ ${match} = 0 ]; then
set linux_gfx_mode=keep
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=text
fi
else
set linux_gfx_mode=keep
fi
else
set linux_gfx_mode=text
fi
export linux_gfx_mode
if [ "$linux_gfx_mode" != "text" ]; then load_video; fi
menuentry 'Ubuntu, za pomocą systemu Linux 3.2.0-23-generic-pae' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
gfxmode $linux_gfx_mode
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root a4befd4a-f91f-4f09-9d5f-a44991ed6a2e
linux /boot/vmlinuz-3.2.0-23-generic-pae root=/dev/sdb1 ro quiet splash $vt_handoff
initrd /boot/initrd.img-3.2.0-23-generic-pae
}
menuentry 'Ubuntu, za pomocą systemu Linux 3.2.0-23-generic-pae (tryb ratunkowy)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root a4befd4a-f91f-4f09-9d5f-a44991ed6a2e
echo 'Wczytywanie systemu Linux 3.2.0-23-generic-pae...'
linux /boot/vmlinuz-3.2.0-23-generic-pae root=/dev/sdb1 ro recovery nomodeset
echo 'Wczytywanie początkowego dysku RAM...'
initrd /boot/initrd.img-3.2.0-23-generic-pae
}
### END /etc/grub.d/10_linux ###

### 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='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root a4befd4a-f91f-4f09-9d5f-a44991ed6a2e
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root a4befd4a-f91f-4f09-9d5f-a44991ed6a2e
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Windows Recovery Environment (loader) (on /dev/sda1)" --class windows --class os {
insmod part_msdos
insmod fat
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 3C98-AC5D
drivemap -s (hd0) ${root}
chainloader +1
}
menuentry "Windows Vista (loader) (on /dev/sda2)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set=root 94CA2D3CCA2D1BCC
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 ###
--------------------------------------------------------------------------------

=============================== sdb1/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' 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/sdb1 during installation
UUID=a4befd4a-f91f-4f09-9d5f-a44991ed6a2e / ext2 errors=remount-ro 0 1
# swap was on /dev/sdb5 during installation
UUID=9ce43dea-fd93-4343-969d-1243397724bd none swap sw 0 0
--------------------------------------------------------------------------------

=================== sdb1: Location of files loaded by Grub: ====================

GiB - GB File Fragment(s)

= boot/grub/core.img 1
= boot/grub/grub.cfg 1
= boot/initrd.img-3.2.0-23-generic-pae 6
= boot/vmlinuz-3.2.0-23-generic-pae 3
= initrd.img 6
= vmlinuz 3

========================= sdc1/syslinux/syslinux.cfg: ==========================

--------------------------------------------------------------------------------
# D-I config version 2.0
include menu.cfg
default vesamenu.c32
prompt 0
timeout 50
ui gfxboot bootlogo
--------------------------------------------------------------------------------

================= sdc1: Location of files loaded by Syslinux: ==================

GiB - GB File Fragment(s)

?? = ?? ldlinux.sys 1
?? = ?? syslinux/chain.c32 1
?? = ?? syslinux/gfxboot.c32 1
?? = ?? syslinux/syslinux.cfg 1
?? = ?? syslinux/vesamenu.c32 1

============== sdc1: Version of COM32(R) files used by Syslinux: ===============

syslinux/chain.c32 : COM32R module (v4.xx)
syslinux/gfxboot.c32 : COM32R module (v4.xx)
syslinux/vesamenu.c32 : COM32R module (v4.xx)

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

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
awk: cmd. line:36: Math support is not compiled in
awk: cmd. line:36: Math support is not compiled in
/home/ubuntu/Pobrane/bootinfoscript-061/bootinfoscript: line 1646: [: 2.73495e+09: integer expression expected


I have to say that script print on terminal:



Boot Info Script 0.61      [1 April 2012]


"gawk" could not be found, using "busybox awk" instead.
This may lead to unreliable results.

Identifying MBRs...
Computing Partition Table of /dev/sda...
Computing Partition Table of /dev/sdb...
Computing Partition Table of /dev/sdc...
Searching sda1 for information...
Searching sda2 for information...
Searching sda3 for information...
Searching sda5 for information...
Searching sdb1 for information...
Searching sdb3 for information...
Searching sdb4 for information...
Searching sdb5 for information...
Searching sdc1 for information...

Finished. The results are in the file "RESULTS.txt"
located in "/home/ubuntu/Pobrane/bootinfoscript-061/".


============== edit 18.06.2012 18:38 ===============



ok, this is more or less copy of my grub recovery session:



error: file not found
grub recovery> set
prefix=(hd0,msdos1)/boot/grub
root=hd0,msdos1
grub recovery> ls
(hd0) (hd0,msdos3) (hd0,msdos1) (hd1) (hd1,msdos5) (hd1,msdos2) (hd1,msdos1)
grub recovery> ls $prefix

error: file not found
grub recovery>


then i've used 'ls' cmd on few path, results are strange (i think):



grub recovery> ls (hd0,msdos1)/boot

grub recovery> ls (hd0,msdos1)/boot/grub

error: file not found
grub recovery> ls (hd0,msdos1)/lib

grub recovery> ls (hd0,msdos1)/bin

grub recovery> ls (hd0,msdos1)/sys
./ ../
grub recovery> ls (hd0,msdos1)/sbin

grub recovery> ls (hd0,msdos1)/usr
./ ../ local/ (and some other things)


is this normal?
i can see /boot/grub and its content when i mount this external HDD by Live Ubuntu


More From » 12.04

 Answers
0

The symptom of being able to see some files but not all on a filesystem with grub usually means that your BIOS is buggy and can't properly handle large drives ( http://tldp.org/HOWTO/Large-Disk-HOWTO-4.html ). What happens is that the BIOS can't read blocks past a certain point in the drive, and so if your root filesystem starts before that limit, but ends after that limit, then some files will be accessible at boot through the BIOS and others won't. The standard way to work around this problem is to create a small /boot/ partition near the beginning of the drive, to ensure that everything that needs to be read through the BIOS, can be.



I would normally expect "out of disk" errors from grub were this the case, and I don't know why we're not seeing those. One way to confirm that the problem is a BIOS limit is to go into your BIOS menus and see what size it lists the drive as being, if it lists it as being less that the actual size, you know your BIOS is buggy. Another way, if your BIOS doesn't list sizes anywhere in its menus, is to run "ls -l" from grub and look at the size listed there. Unfortunately, you can't run "ls -l" from the rescue shell, so you'd need to boot from a grub CD, or have already fixed the problem with a small /boot/ partition, before you could do the check from within grub.


[#37518] Thursday, July 21, 2022, 2 Years  [reply] [flag answer]
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