Under vissa omständigheter och installationer har 10.3.2 fördubblat
uppstarttiden. ( Bla för min Quicksilver och min fars iMac G4 ).
Det verkar som om det finns lite felpekningar i vissa uppstartsfiler, bla pekar man på /usr/sbin/BootCacheControl . Denna fil fanns varken på min eller min fars dator. Som jag har förstått det så är detta en cache för vissa "kext" filer som används för att komma ihåg vissa saker under uppstart.
Här är fixen , halverade min boottid under 10.3.2 efter två omstarter :
I think I have a fix for the slow startup. I was talking to Apple this
morning, I was having exporting issues out of iPhoto. Long story short, it
was a problem with my photo library and had to rebuild it. While I was
waiting I asked Matt (the apple guy on the phone) if there was any thing
we could do to get 10.3.2 to boot faster.
I noticed that it was much slower when I upgraded to 10.3.2. Matt told me
to go into terminal and type:
sudo cp -p
/System/Library/Extensions/BootCache.kext/Contents/Resources/BootCacheControl
/usr/sbin/
I don't know if that will come through but it's:
sudo<space>cp<space>-p<space>/System/Library/Extensions/BootCache.kext/Contents/Resources/BootCacheControl<space>/usr/sbin/<enter>
It asks you for your admin password.
WARNING: I'm not a mac genius and I have no idea what this does. It copies
something to somewhere else. Why this makes a difference, I don't know.
You then reboot, and it still is slow. Then you reboot again and it's real
fast. I think it's now faster than it was in 10.3.1.
If someone is more knowledgable about BSD or Unix to know what this is
doing, please fill us in. But I'm real happy I did this on my machine.
Just wanted to share what worked for me.
-----------------------------------------------
to reiterate the fix (all on one line):
sudo_cp_/System/Library/Extensions/BootCache.kext/Contents/Resources/BootCacheControl_/usr/sbin
Why does it work?
BootCacheControl is called from /etc/rc twice:
- BootCacheControl
- BootCacheControl tag
both times its called using a shell variable set in /etc/rc which
originally points to
/System/Library/Extensions/BootCache.kext/Contents/Resources/BootCacheControl
(and if this would not exist it would get changed to
/usr/sbin/BootCacheControl.)
But there is another call from the loginwindow process later:
- /usr/sbin/BootCacheControl autostop 15
Unfortunately /usr/sbin/BootCacheControl does not exist on a(ll) updated
10.3.2 system. The copy command takes care of that.
