After tarball restore my PC (tar xvfpz backup.tgz -C /), my sound card and network are not working. How to detect?

Question

1 . I have a old laptop I installed Ubuntu 12.04 on. (It was ACER)

2 . I booted into single user mode and backed it up via

cd /
sudo -i
tar cvpzf backup.tgz --exclude=/proc --exclude=/dev --exclude=/lost+found --exclude=/backup.tgz --exclude=/mnt --exclude=/sys /

3 . I installed a fresh copy of Ubuntu 1204 on my new laptop (It is Dell)

4 . I boot into single user mode

5 . I backup the existing /boot directory

6 . I untar my backup to restore on to the Dell

sudo tar xvfpz backup.tgz -C /

7 . I restore the previous /boot directory again

8 . I boot it up, and my profile and settings are loaded ok but, Ubuntu shows that there is no Sound Card.. I cannot use unity to drag and change volume. I noticed that the network card also doesnt work.

** How do you make ubuntu recognize changed hardware, if the hardware is already configured for a different laptop? Does anyone know?**

Answer 1

I found out, that this answer didnt solve my problem. Let me describe it carefully:

** Problem: Need to TARBALL BACKUP a old Laptop with old Hardware, and restore the entire OS onto a new laptop with LVM Enabled **

Here are my steps, but they DO NOT WORK if your laptop backup has a different kernel then the one that came on the Ubuntu CD (In other words I can only boot into the kernel in the tarball, to mount the lvm, but the other kernels will not work)

---

To backup: (MAKE SURE YOUR VERSION OF LINUX IS ONE LESS THAN THE LATEST IN THE DIST UGPRADE :(...)

1. BOOT INTO RECORVERY (HOLD SHIFT FOR GRUB OPTIONS on bootup) boot into recovery (use the grub recovery option, or single mode) unmount all harddrives other than sda1 which has your root OS

2. cd / sudo tar cvpzf backup.tgz --exclude=/proc --exclude=/dev --exclude=/lost+found --exclude=/backup.tgz --exclude=/mnt --exclude=/sys /

To restore: 0. Install a fresh Ubuntu (even the server or alternate cd with lvm WILL WORK WITH THIS). Do a regular install, settings dont matter because we will wipe it all away.

1. BOOT INTO RECORVERY (HOLD SHIFT FOR GRUB OPTIONS on bootup)

2. backup your /boot carefully just in case!!! I do: cd /boot; mkdir ORIG.BOOT; mv * ORIG.boot; cd / sudo tar xvfpz backup.tgz -C /

3. THEN REVERT BACK TO YOUR ORINGAL BOOT (remember to MV not just tar ok???? and make sure the vmlinuz and initrd of the both are merged. and if u want its ok to... merge the grub.cfg too

1. After it boots if you dont have sound or network run: sudo add-apt-repository ppa:ubuntu-audio-dev sudo apt-get update sudo apt-get --reinstall dist-upgrade

   I tried this but it will only work with my old kernel in /boot, none of the new kernels (even after dist-upgrade will boot into the lvm properly)

Here is my grub.cfg, why doesnt it work?

#

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='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 if loadfont /usr/share/grub/unicode.pf2 ; then set gfxmode=auto load_video insmod gfxterm insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 set locale_dir=($root)/boot/grub/locale set lang=ja_JP insmod gettext fi terminal_output gfxterm if [ "${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

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 3.2.0-24-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='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 linux /boot/vmlinuz-3.2.0-24-generic-pae root=UUID=015c0470-4ba2-41aa-a140-181b1cc872c2 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.2.0-24-generic-pae } menuentry 'Ubuntu, with Linux 3.2.0-24-generic-pae (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod gzio insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 echo 'Loading Linux 3.2.0-24-generic-pae ...' linux /boot/vmlinuz-3.2.0-24-generic-pae root=UUID=015c0470-4ba2-41aa-a140-181b1cc872c2 ro recovery nomodeset echo 'Loading initial ramdisk ...' initrd /boot/initrd.img-3.2.0-24-generic-pae } submenu "Previous Linux versions" { menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae --THIS IS THE ONLY KERNEL VERSION THAT WORKS' --class ubuntu --class gnu-linux --class gnu --class os { recordfail gfxmode $linux_gfx_mode insmod gzio insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 linux /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=015c0470-4ba2-41aa-a140-181b1cc872c2 ro quiet splash $vt_handoff initrd /boot/initrd.img-3.2.0-23-generic-pae } menuentry 'Ubuntu, with Linux 3.2.0-23-generic-pae (recovery mode) --THIS IS THE ONLY KERNEL VERSION THAT WORKS' --class ubuntu --class gnu-linux --class gnu --class os { recordfail insmod gzio insmod part_msdos insmod ext2 set root='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 echo 'Loading Linux 3.2.0-23-generic-pae ...' linux /boot/vmlinuz-3.2.0-23-generic-pae root=UUID=015c0470-4ba2-41aa-a140-181b1cc872c2 ro recovery nomodeset echo 'Loading initial ramdisk ...' 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='(hd0,msdos1)' search --no-floppy --fs-uuid --set=root 015c0470-4ba2-41aa-a140-181b1cc872c2 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=root 015c0470-4ba2-41aa-a140-181b1cc872c2 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