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Those numbers in [ ] are the kernel timestamps.
You might get rid of some of the messages with the 'quiet' kernel flag, but it will probably show errors.
Thanks but unfortunately it did not work. Here is grub.cfg file after the update-grub
Quote:
#
# 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 $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 recordfail {
set recordfail=1
if [ -n ${have_grubenv} ]; then if [ -z ${boot_once} ]; then save_env recordfail; fi; fi
}
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
insmod gfxterm
insmod vbe
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
fi
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
set locale_dir=($root)/boot/grub/locale
set lang=en
insmod gettext
if [ ${recordfail} = 1 ]; then
set timeout=-1
else
set timeout=30
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/10_linux ###
menuentry 'Ubuntu, with Linux 3.0.4' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
linux /boot/vmlinuz-3.0.4 root=UUID=2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68 ro splash quiet splash
initrd /boot/initrd.img-3.0.4
}
menuentry 'Ubuntu, with Linux 3.0.4 (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
echo 'Loading Linux 3.0.4 ...'
linux /boot/vmlinuz-3.0.4 root=UUID=2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68 ro single splash
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-3.0.4
}
menuentry 'Ubuntu, with Linux 2.6.32-34-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
linux /boot/vmlinuz-2.6.32-34-generic root=UUID=2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68 ro splash quiet splash
initrd /boot/initrd.img-2.6.32-34-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-34-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
echo 'Loading Linux 2.6.32-34-generic ...'
linux /boot/vmlinuz-2.6.32-34-generic root=UUID=2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68 ro single splash
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-34-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-33-generic' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
linux /boot/vmlinuz-2.6.32-33-generic root=UUID=2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68 ro splash quiet splash
initrd /boot/initrd.img-2.6.32-33-generic
}
menuentry 'Ubuntu, with Linux 2.6.32-33-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
echo 'Loading Linux 2.6.32-33-generic ...'
linux /boot/vmlinuz-2.6.32-33-generic root=UUID=2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68 ro single splash
echo 'Loading initial ramdisk ...'
initrd /boot/initrd.img-2.6.32-33-generic
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
linux16 /boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
insmod ext2
set root='(hd0,1)'
search --no-floppy --fs-uuid --set 2b35ff47-85b5-4bbd-bfdb-07dd54cbeb68
linux16 /boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###
### BEGIN /etc/grub.d/30_os-prober ###
if [ ${timeout} != -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 ###
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_LINUX_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
I tried deleting grubenv file but after each boot it recreates and it is just
I hope you could answer one more question.
Does linux store the messages that appear right after choosing kernel but before login screen comes in a logfile somewhere?
Glad I could help. You may also find more in the info pages:
Code:
info grub
Quote:
Originally Posted by hen770
Type dmesg command, use less or grep to find whatever you want.
Use
Code:
dmesg | less
to be able to scroll forward and backward
or
Code:
dmesg | more
to scroll forward one line at a time
For help on less or more:
Code:
less --help
more
Just my piece of advice: If you are involved in building kernels etc, you should learn to use the manpages and info pages.
You can also access the manpages from Ubuntu's 'Help and Support'. Enter man <command> in the search box:
eg: man less will open the less manpage in the Help and Support window.
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