First, fix
the ipw2200 wireless module (the config option for suspend2 changed
name in 2.1.8.6 from CONFIG_SOFTWARE_SUSPEND2_BUILTIN to just
CONFIG_SUSPEND2):
Edit the source code of the ipw2200 1.0.4 module:
# cd /root/tarballs/ipw2200-1.0.4/
# cp ipw2200.c ipw2200.c.orig
# emacs ipw2200.c
And change the line
#ifdef CONFIG_SOFTWARE_SUSPEND2_BUILTIN
to
#ifdef CONFIG_SUSPEND2
and compile and install it:
# less INSTALL
# make
# make install
Recompile
the kernel (assuming you already have a .config file, else first ‘cp
/boot/config-2.6.XXX .config‘). From within /usr/src/linux-2.6.12:
IMPORTANT: My swap partition is /dev/hda6 - your’s probably something
else - find it with ‘cat /etc/fstab | grep swap‘ or ‘fdisk -l|grep -i
swap‘.
# make oldconfig
...
CONFIG_SUSPEND2=y
CONFIG_SUSPEND2_FILEWRITER=y
CONFIG_SUSPEND2_SWAPWRITER=y
CONFIG_SUSPEND2_USERSPACE_UI=y
SUSPEND2_TEXT_MODE=n
CONFIG_SUSPEND2_DEFAULT_RESUME2=\"/dev/hda6\"
CONFIG_SUSPEND2_KEEP_IMAGE=y
CONFIG_SUSPEND2_CHECK_RESUME_SAFE=y
CONFIG_CRYPTO_LZF=y
# make
While compiling, download the hibernate script tarball and install it:
# cd /root/tarballs
# tar xzf hibernate-script-1.09.tar.gz
# cd hibernate-script-1.09
# less README
# ./install.sh
# cp init.d/hibernate-cleanup.sh /etc/init.d/hibernate-cleanup.sh
Back in /usr/src/linux-2.6.12, install the new kernel:
# make modules_install
# cp -f arch/i386/boot/bzImage /boot/vmlinuz-2.6.12-swsusp2
# mkinitrd -f -v /boot/initrd-2.6.12-swsusp2.img 2.6.12
Update /etc/grub.conf (NOTE: change /dev/hda6 to your swap partition):
...
title Fedora Core (2.6.12-swsusp2)
root (hd0,2)
kernel /vmlinuz-2.6.12-swsusp2 ro root=LABEL=/ resume2=swap:/dev/hda6
initrd /initrd-2.6.12-swsusp2.img
...
Update the newly baked initrd:
# cd /root/
# mkdir myinitrd
# cd myinitrd
# gzip -dc < /boot/initrd-2.6.12-swsusp2.img |cpio -i
and edit the unpacked init to include the two extra lines the lines after ‘mount -t sysfs /sys /sys‘:
#!/bin/nash
mount -t proc /proc /proc
setquiet
echo Mounted /proc filesystem
echo Mounting sysfs
mount -t sysfs /sys /sys
echo Activating Software Suspend 2
echo > /proc/software_suspend/do_resume
echo Creating /dev
mount -o mode=0755 -t tmpfs /dev /dev
mknod /dev/console c 5 1
mknod /dev/null c 1 3
mknod /dev/zero c 1 5
mkdir /dev/pts
mkdir /dev/shm
echo Starting udev
/sbin/udevstart
echo -n \"/sbin/hotplug\" > /proc/sys/kernel/hotplug
echo \"Loading jbd.ko module\"
insmod /lib/jbd.ko
echo \"Loading ext3.ko module\"
insmod /lib/ext3.ko
/sbin/udevstart
echo Creating root device
mkrootdev /dev/root
echo Mounting root filesystem
mount -o defaults --ro -t ext3 /dev/root /sysroot
echo Switching to new root
switchroot --movedev /sysroot
Install the new initrd:
# cp /boot/initrd-2.6.12-swsusp2.img /boot/initrd-2.6.12-swsusp2-without-do_resume.img
# find . | cpio -o -c | gzip -9 > /boot/initrd-2.6.12-swsusp2.img
You might want to backup your personal data as well as the /etc/ folder before continuing in case you fuck up your entire system.
In
order to reduce the chance of a total disaster something goes wrong
with the hibernation, you should put the following line in your /etc/rc.local
(this prevents the system to perform a resume after the the sequence
‘hibernate - boot a noresume kernel - reboot the resume kernel’ which
otherwise will cause a filesystem crash as the noresume kernel will
leave the system in another state…):
/etc/init.d/hibernate-cleanup.sh
Because I’m using the 915resolution
VBIOS hack, and this has to be patched each and every time the system
boots, the hibernation script must do this. Therefore, add the
following line to /etc/hibernate/hibernate.conf (from the Software Suspend 2 Wiki):
OnResume 86 915resolution 3c 1280 768
Now, reboot with the new kernel (important). Then, from within X, issue the command ‘hibernate‘ as root. After a few seconds (20?), the computer turns itself off.
Next time you power on, boot from the same kernel
(important) and watch the system bring you right to your X session
instead of doing the whole boot sequence. If you’ve chosen to lock the
X session you have to touch a key to wake up the display. For me it
took about 35 seconds from I pushed the powerbutton until I could
unlock my X session, and in total less than 55 seconds until the resume
bar was 100 percent. That is with quite some programs running, and
1.2GB RAM.
See my hibernation.conf in the Files
section (I use KDE). I’ve successfully used hibernation while having an
active wireless network connection. One should maybe be careful if
hibernating with AC power plugged and then resumes unplugged.
This rocks bigtime!!!