Suspending to swap with two OS's
davidsen at tmr.com
Sun Jul 15 13:03:59 UTC 2007
Dotan Cohen wrote:
> On 14/07/07, Sam Varshavchik <mrsam at courier-mta.com> wrote:
>> Dotan Cohen writes:
>> > sda1 is Ubuntu, sda2 is empty, sda3 is swap, and sda4 is /home. I'd
>> > like to install Fedora to sda2 and use sda3 as swap for Fedora as
>> > well. However, I'm concerned that when Ubuntu suspends it will dump
>> > it's memory to swap, which Fedora will overwrite when I boot Fedora
>> > (and vice versa). Is this a valid concern? Should I give each OS it's
>> > own swap?
>> Yes, it's a valid concern, and that's exactly what will happen, if you
>> configure this partition as a swap partition, in Fedora.
> Thanks. As I'm running out of disk space in /home, I'd rather not
> create another swap partition. Is it true that a swap file on the same
> disk as the file system performs as well as a swap partition? This
> machine has 2 GB of physical memory.
Swap to file is not as fast, and I have the feeling that restore may be
at too low a level to use it. There are some options on where the
suspend data is written, I'm sorry I can't recall the details other than
the fact that you can control that. Look for a boot option or something.
This came out of a discussion I initiated regarding a restore requiring
booting the same kernel that was suspended. The consensus was that that
might not be true in the future, restoring whatever was suspended was
possible if desired.
Bill Davidsen <davidsen at tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
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