lphdisk - prepare a hibernation partition for NoteBIOS suspend-to-disk
[ -h, --help
] [ -p, --probeonly
] [ -q,
] [ -d, --debug
] [ -n, --nowrite
] [ -f,
] [ device
prepares a hard disk for use with APM "Suspend-to-disk"
features, as implemented on laptop computers running Phoenix NoteBIOS.
Currently, the utility only formats an already created partition set to type
with a disk partitioning utility such as fdisk
should be a full-disk device (such as /dev/hda
) and defaults to /dev/hda .
Since most laptops only have one IDE hard disk, and all known NoteBIOS
configurations will only look to the first bootable hard drive anyway, the
default value for device
is correct for most cases.
In order to properly prepare a hard disk for suspend-to-disk on your laptop, you
will need to make sure there is enough space free to accommodate an additional
hibernation partition. The hibernation partition must be a primary partition
(1-4), and the required size will be determined by the amount of physical and
video RAM in your laptop. To determine the size you need to make the
partition, the following calculation is a good rule of thumb:
physical RAM + video memory +
Alternately, you can run lphdisk --probeonly
to have lphdisk attempt to
determine your memory requirements and calculate a reccomended partition size
Having created a primary partition of the proper size using a disk partitioning
utility, you should set it to type A0
hex (identified by fdisk
as "IBM ThinkPad Hibernation", though "Phoenix NoteBIOS
Hibernation" would be a more correct label).
will then locate, verify, and format this partition for use. At
this point you will need to reboot the system so that BIOS can locate and use
the new hibernation partition.
Once the system has been rebooted, you should be able to perform the
suspend-to-disk function of your BIOS using the normal procedure (
on many laptops, though some differ. The apm --suspend
command may or may not also do this, depending on the BIOS). You will know it
is working properly if you see a Phoenix NoteBIOS screen appear indicating the
progress of saving memory to disk before the machine powers off, and a similar
screen indicating resume progress when it is started up again (if you do not
see this screen, it is likely that the BIOS has entered suspend-to-RAM mode
instead, and is not successfully using the hibernate partition).
- -h, --help
- show terse usage information and available options.
- -p, --probeonly
- Probe for and calculate the required partition size for the
current system, but do not attempt to format anything.
- -q, --quiet
- tells lphdisk to be quiet: the normal output messages will
not be displayed.
- -d, --debug
- turns on (copious) debugging output.
- -n, --nowrite
- tells lphdisk to do everything it would normally do, but
not to actually write data to the disk. Useful for testing.
- -f, --force
- force lphdisk to proceed, regardless of potential problems.
This option is dangerous and could cause disk corruption!
only formats an already properly created hibernation
partition. It is the goal of this utility to be able to detect physical and
video memory as well as create the partition before formatting it.
No known bugs, but that doesn't mean they're not in there. However,
functionality is not yet complete.
Patrick D. Ashmore <firstname.lastname@example.org>
Alex Stewart <email@example.com>