Hi, all:
Sorry that I started another new topic. BTW, thanks Bruce, thank you for
your answer to my former question, which makes me much clearer already.
However, I still keeps receiving the following error message.
*Kernel panic - not syncing: VFS: unable to mount root fs on unknown
block(0,0)
*
*Pid : 1, comm : swapper/0 Not tainted 3.7.1 #1*
*Call Trace:*
*panice+8x7d/0x168*
*mount_block_root+0x147/0x1ca*
*...*
Tow key file contents are posted at the bottom:
1) On my Hard Drive:
*peijia@peijia-GA-870A-UD3:/boot/grub$ cat 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 "${boot_once}" ]; then save_env
recordfail; fi; fi
}
function load_video {
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
}
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root 03632645-34e5-473f-8fb0-63e6aa28fd5a
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=auto
load_video
insmod gfxterm
insmod part_msdos
insmod ext2
set root='(hd1,msdos1)'
search --no-floppy --fs-uuid --set=root
03632645-34e5-473f-8fb0-63e6aa28fd5a
set locale_dir=($root)/boot/grub/locale
set lang=en_CA
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, with Linux 3.2.0-35-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
03632645-34e5-473f-8fb0-63e6aa28fd5a
linux /boot/vmlinuz-3.2.0-35-generic-pae
root=UUID=03632645-34e5-473f-8fb0-63e6aa28fd5a ro quiet splash $vt_handoff
initrd /boot/initrd.img-3.2.0-35-generic-pae
}
menuentry 'Ubuntu, with Linux 3.2.0-35-generic-pae (recovery mode)' --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
03632645-34e5-473f-8fb0-63e6aa28fd5a
echo 'Loading Linux 3.2.0-35-generic-pae ...'
linux /boot/vmlinuz-3.2.0-35-generic-pae
root=UUID=03632645-34e5-473f-8fb0-63e6aa28fd5a ro recovery nomodeset
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.2.0-35-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
03632645-34e5-473f-8fb0-63e6aa28fd5a
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
03632645-34e5-473f-8fb0-63e6aa28fd5a
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/sda1)" --class windows --class os {
insmod part_msdos
insmod ntfs
set root='(hd0,msdos1)'
search --no-floppy --fs-uuid --set=root EE10A61C10A5EC31
chainloader +1
}
*menuentry "Unknown Linux distribution (on /dev/sdd1)" --class gnu-linux
--class gnu --class os {*
* insmod part_msdos*
* insmod ext2*
* set root='(hd3,msdos1)'*
* search --no-floppy --fs-uuid --set=root
7983deca-7a85-4f31-b826-1a1c50f1458c*
* linux /boot/vmlinuz-3.7.1-lfs-SVN-20121225 root=/dev/sdd1*
*}*
### 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 ###
2) *On the SD card, under folder $LFS*
*root:/etc# cat fstab*
# Begin /etc/fstab
# file system mount-point type options dump fsck
# order
*/dev/sdd1 / ext4 defaults 1 1*
*/dev/sdd2 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
3) *On the SD card, under $LFS*
*root:/boot# ls*
*config-3.7.1 System.map-3.7.1 vmlinuz-3.7.1-lfs-SVN-20121225*
As you can see, *I don't even have the folder under /boot*, because as said
http://www.linuxfromscratch.org/lfs/view/development/chapter08/grub.html
, *This
section is not required to boot your LFS system.*
Well, it seems to me that LFS Chapter 8 is not quite clear ... There may be
something more to be talked about there. Anyway, how to avoid the *Kernel
panic - not syncing: VFS* problem finally?
Cheers
--
Pei JIA
Email: jp4w...@gmail.com
cell: +1 604-362-5816
Welcome to Vision Open
http://www.visionopen.com
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