[Bear Hunter]

So I went ahead and ran those two terminal commands and it seems to have fixed it for me.

The key is running the first command so sleepimage doesn't get recreated.

[rclee820]

Originally Posted by dantes

Link to article: Accelerate Your Mac News Archive for Friday July 24, 2009

Tips for OS X SSD Users on Disabling Hibernate mode/deleting sleepimage file (and recap on disabling SMS, LidWake)
Here's a mail from a reader today in reply to a comment I had under an SSD Expresscard report about extending the life of SSDs by disabling indexing and disabling writing a ram image file on sleep - but I couldn't remember the command to disable hibernate mode. (Also includes a recap of older tips on disabling SMS and LidWake.)
(BTW - I've never used it personally but a reader suggested using Spotless ($16.95) to disable -content indexing- rather than disabling all indexing via Spotlight privacy prefs.)
"Subject: Turning off hibernate
Yes, for the current generation of SSD, it is recommended to turn off hibernate mode on laptops to preserve drive life (which is a shame, because it would finally make hibernate fast enough to use with 4GB of RAM). I turn it off for my normal HD due to slow sleep when writing a 4GB file, and occasional freezing on wake, which defeats the purpose of safe sleeping anyway. To refresh readers' on the methodology.

Using terminal, enter: sudo pmset hibernatemode 0 (FYI: the -a parameter doesn't seem to be required based on tests w/o it using both battery and AC modes)
Voila. Now simply reboot. (And if you want to reclaim the space the hibernate file takes up (valuable on an SSD), you use terminal for that. The file is found in the /var/vm/ folder, and is named sleepimage. Simply sudo rm that file.)
(FYI - There's also a utility (free) called "smart sleep" mentioned in a later post on More notes on Disabling Hibernate mode)
You can confirm the change with sudo pmset -g which also shows you the other variables in your power management settings. You can change things like lidwake as well, setting it to 0, which will mean you can open the lid, but it won't wake the machine until you press a key. This is a worthwhile change to make, as it will eliminate the occasional failure to wake from sleep problem (solid white light, but black screen). (Disabling lid wake switch was also a tip from years ago where some readers w/notebooks (older models w/lid release buttons) put in carry bags accidently had the lid release tripped during travel - resulting in the battery being drained.-Mike)
This is also where you can turn off sms (sudden motion sensor), which is not necessary for drives with their own sms like certain WD Scorpio drives (and can cause random freezing), and also unnecessary and may cause conflicts with those using SSDs on the SATA bus.
-Mike K."

The terminal command for disabling SMS is sudo pmset -a sms 0. (From an Apple doc on Advanced tips for Sudden Motion Sensor, first posted for late model PB G4s that were the first mac notebooks w/SMS.) Disabling SMS was a tip from several years ago here (2006) for some Scorpio drives that would cause a Kernel Panic if SMS was triggered. A reader that was affected by the Scorpio/SMS issue said (in March 2007, on the OS X 10.4.9 reports page) that per an Apple Engineering reply to his bug report, that issue was fixed in OS X 10.4.9, and I have not had anyone mention the Scorpio/SMS issue for years now. (There was some older discussions on Scorpio models with and without the (WD term) "free fall" sensor - many drive db reports (SATA Scorpios) from the past were on BEVS suffix drives - although I remember some notes on Scorpio "black" models that said BJKT suffix had the FFS and BEKT didn't IIRC, but I could be mistaken.)

I tried running these two commands, but it didn't work. I set my hibernatenmode to "0", and re-booted, but it still looks for the hibernation image. If i delete the hibernation image file, upon reboot it flashes a quick something along the lines of how it cant find the file and proceeds to boot normally. does that make sense?

I'm running snow leopard 10.6.2 with NBI 0.8.3 RC4. Any ideas?

[Bear Hunter]

Yes...that's normal. At least on my machine

[rclee820]

so instead of the "hibernation image is too old by xxx seconds, it's this other "quicker" error? there's no way i can just get it to boot straight from the dell logo to the apple logo without any "errors" in between?

[Bear Hunter]

Basically.....it's so quick I don't even know what it says.

Anyone have a different experience?

[rclee820]

Originally Posted by Bear Hunter

Basically.....it's so quick I don't even know what it says.

Anyone have a different experience?

hmm... my best guess is that this means that hibernatemode isn't actually disabled, and that new error is just from deleting the sleepimage?

[macpilot]

Hey guys, I am a bit confused here as to the nomenclature we are using.

Sleep and Hibernate are two different things on a real Mac AFAIK.

Hibernate is something that a real Mac does when the battery is dead, as it attempts to preserve your previous state and then when enough power is available it will "awaken".

My Mini will go to sleep but I have trouble waking it from extended (more than a few hours) sleep which is not hibernation. I have not let my mini battery drain to the point of hibernation. Curiously, sometimes it requires pressing the power button to awaken from sleep, whereas on a real Mac any key will awaken the system.

I too have that statement during boot about the "hibernate image too old" and not really sure what it means. My NBI RC4 settings currently have "Enable hibernation" not checked.

So I guess my question is should I check that box, and if so, is that "hibernation" equivalent to the deep sleep on a real Mac?

[rietemah]

After downloading an OSX update this evening I get the message with the old hibernation-file, too.

And under this message for just a second it appears:

efi_inject_get_devprop_string NULL trying stringdata

After this message my mini10v reboots.

What exactly should I do to get into OSX? I'm not really sure and don't want to ruin my OSX installation (because I'm writing my thesis on it). I am not really into computers either.

Entering OSX in safe mode does not work. I don't know which netbookinstaller version I used to be honest. I don't mind reinstalling the whole thing but just need to get hold of my documents!

Thanks in advance

[aqp]

Originally Posted by rietemah

After downloading an OSX update this evening I get the message with the old hibernation-file, too.

I think your problem is in your first line. Did you upgrade to 10.6.2 via software update under the Apple menu? There's lots of notes in these forums about problems with 10.6.2 and how to properly do the upgrade. If that's what you did you may have to reinstall. Search around a bit.

[bsoplinger1]

Originally Posted by rietemah

After downloading an OSX update this evening I get the message with the old hibernation-file, too.

And under this message for just a second it appears:

efi_inject_get_devprop_string NULL trying stringdata

After this message my mini10v reboots.

The only version of NBI that supports 10.6.2 is the development version 0.8.3.RC4 and not the release 0.8.2 version.

If you've got access to a working Mac just update your OS X install disc with NBM 0.8.3 RC4 and then just run NBI from the utilities menu of the installer. You don't need to reinstall the OS. You just need to reinstall the latest version of Chameleon and the extensions that NBI installs for you to make 10.6.2 run.

If you don't have access to a Mac to update your install disc you're stuck with a reinstall of OS X, sorry. If you have the 0.8.2 version for your install disc the sequence you'd do is:
1) Reinstall 10.6.0.
2) Boot into the new install and do not update the OS.
3) Download NBM/NBI 0.8.3 RC4 (or whatever the latest version is if someone else is doing this at a future time)
4) Update your install disc and update your mini.
4a) When updating your mini at least choose: Chameleon, Extensions, Generate dsts.aml (or whatever the name is) file.
5) Reboot
6) Now you can update from 10.6.0 to 10.6.2. Its best to update using the combo updater from Apple's site (Apple - Support, search for "10.6.2 combo update") vs. doing the update via the built-in software update.