[SOLVED] error at grub splash screen

zeshanuk · 04-02-2015, 11:48 PM

Hi all,

I need some help I have an error come up on the grub splashscreeen time

Quote:

error: file not found

Does anyone know why this is?

regards,
Zeshan

spiky0011 · 04-03-2015, 12:59 AM

Hi you will need yo give more info for any one to help. Can you get a screen shot some how, post your grub.cfg file and fstab file.

zeshanuk · 04-03-2015, 02:16 AM

I cant its a separate machine and I managed to lose my host grub.cfg file too

spiky0011 · 04-03-2015, 02:23 AM

well you better sort that out 1st. Any 1 who helps will need info so you will some, You can use a camara of phone to take a pic of screen it will all help.

Keith Hedger · 04-03-2015, 06:33 AM

Aside from what spiky said about needing more info, the 'file not found' error from grub generally means it cant find a nessaccary boot file, the kernel or initrd, you can drop into a simple grub menu and set boot options manually but you will have to look for the relevent documentation for more details.

zeshanuk · 04-03-2015, 06:36 AM

Hi spiky, I am not able to get a pic of the screen because i dont have a camera, but i am able to send you my grub.cfg file and fstab file:

grub.cfg:

Quote:

#
# 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 $prefix/grubenv ]; then
load_env
fi
set default="0"
if [ "${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 load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}

insmod part_msdos
insmod ext2
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set=root 74505895-e36b-4a27-95a5-74ff5104a28d
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 79b72f35-8a67-48a2-b99e-ac0d60d3cf8a
set locale_dir=($root)/grub/locale
set lang=en_GB
insmod gettext
fi
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
insmod part_msdos
insmod ext2
set root='(hd0,msdos2)'
search --no-floppy --fs-uuid --set=root 74505895-e36b-4a27-95a5-74ff5104a28d
insmod png
if background_image /usr/share/images/desktop-base/joy-grub.png; then
set color_normal=white/black
set color_highlight=black/white
else
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
fi
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry 'Debian GNU/Linux, with Linux 3.2.0-4-amd64' --class debian --class gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 79b72f35-8a67-48a2-b99e-ac0d60d3cf8a
echo 'Loading Linux 3.2.0-4-amd64 ...'
linux /vmlinuz-3.2.0-4-amd64 root=UUID=74505895-e36b-4a27-95a5-74ff5104a28d ro quiet
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.2.0-4-amd64
}
menuentry 'Debian GNU/Linux, with Linux 3.2.0-4-amd64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 79b72f35-8a67-48a2-b99e-ac0d60d3cf8a
echo 'Loading Linux 3.2.0-4-amd64 ...'
linux /vmlinuz-3.2.0-4-amd64 root=UUID=74505895-e36b-4a27-95a5-74ff5104a28d ro single
echo 'Loading initial ramdisk ...'
initrd /initrd.img-3.2.0-4-amd64
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-504.el6.x86_64' --class debian --class gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 79b72f35-8a67-48a2-b99e-ac0d60d3cf8a
echo 'Loading Linux 2.6.32-504.el6.x86_64 ...'
linux /vmlinuz-2.6.32-504.el6.x86_64 root=UUID=74505895-e36b-4a27-95a5-74ff5104a28d ro quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-2.6.32-504.el6.x86_64.img
}
menuentry 'Debian GNU/Linux, with Linux 2.6.32-504.el6.x86_64 (recovery mode)' --class debian --class gnu-linux --class gnu --class os {
load_video
insmod gzio
insmod part_msdos
insmod ext2
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root 79b72f35-8a67-48a2-b99e-ac0d60d3cf8a
echo 'Loading Linux 2.6.32-504.el6.x86_64 ...'
linux /vmlinuz-2.6.32-504.el6.x86_64 root=UUID=74505895-e36b-4a27-95a5-74ff5104a28d ro single
echo 'Loading initial ramdisk ...'
initrd /initramfs-2.6.32-504.el6.x86_64.img
}
menuentry 'LFS v7.7' {
insmod ext2
set root='(hd0,msdos1)'
linux /boot/vmlinuz-3.19-lfs-7.7 root=UUID=11130002-1a6b-43f2-9b49-2df2f110d371 ro single
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###

fstab file:

Quote:

# Begin /etc/fstab

# file system mount-point type options dump fsck
# order
/dev/sda4 / ext4 defaults 1 1
/dev/sda3 swap swap pri=1 0 0
proc /proc proc nosuid,noexec,nodev 0 0
sysfs /sys sysfs nosuid,noexec,nodev 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
tmpfs /run tmpfs defaults 0 0
devtmpfs /dev devtmpfs mode=0755,nosuid 0 0

# End /etc/fstab

any ideas?

zeshanuk · 04-03-2015, 06:40 AM

Hi Keith,

Believe it or not im from wiltshire too (trowbridge) and i am really grateful for your comments, I have been trying with the grub setup for some time and cant seem to get it right

Keith Hedger · 04-03-2015, 06:45 AM

Small world!
I'm in enford, down by Amesbury

spiky0011 · 04-03-2015, 06:48 AM

Hi

The 1st thing I would try is remove the "UUID=11130002-1a6b-43f2-9b49-2df2f110d371"
And replace it with root=/dev/sda4

FYI

normal.mod is in
/usr/lib/grub/i386-pc/normal.mod
/bootgrub/i386-pc/normal.mod

This page might help to boot from prompt, just leave the intrid part out, "not used"

https://www.linux.com/learn/tutorial...ub-2-on-linux/

Keith Hedger · 04-03-2015, 06:49 AM

As you have some other boot entry's I would boot to one of them and manually check the grub.cfg file make sure that the kerenl name is correct and also the root uid and the initrd if there is one.

zeshanuk · 04-03-2015, 08:54 AM

hi spiky, I have followed the instructions on grub you sent me. it fixed my host system configuration which now boots fine. the lfs system has a kernel panic however, error reads:

end Kernel panic - not syncing:VFS Unable to mount root fs on unknown-block(0,0)

im not sure why it doesn't mount, do you have any ideas?

spiky0011 · 04-03-2015, 09:34 AM

Hi
Did you enable ext4 fs in kernel?

cd to where config file is and

cat config-xxx | grep CONFIG_EXT4 "xxx is what ever else config is called"

zeshanuk · 04-03-2015, 09:59 AM

I used the default setup for the kernel, what config file am I looking for please??? do I need to unpack the Linux-3.19 tarball?

zeshanuk · 04-03-2015, 10:20 AM

ithink i figured out what you was looking for spiky:

Quote:

root@Unknown:/home/zeshan# cat /boot/config-3.19 | grep CONFIG_EXT4
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
root@Unknown:/home/zeshan#

zeshanuk · 04-03-2015, 10:28 AM

now just checked the right file for you, sorry but its the same as the host output:

Quote:

root@Unknown:/mnt/bootcheck# cat config-3.19 | grep CONFIG_EXT4CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT23=y
CONFIG_EXT4_FS_POSIX_ACL=y
CONFIG_EXT4_FS_SECURITY=y
# CONFIG_EXT4_DEBUG is not set
root@Unknown:/mnt/bootcheck#