Mime Types Gone After System Update

Nautilus and PCmanfm can not recognise any file type. Everything is an executable and text file. Evince can not open any file after update.
/etc/mime.types was sliced down to a single line: application/x-java-jnlp-file jnlp
I recovered the file by installing the package mime.types but without success.The file is OK now, but even after restart the problem remains. This way Gnome is not really useful anymore. KDE works fine as long as KDE apps are used.

qweac wrote:
I've never used pkgbuild before, so I can't make it work. I went to the adress "secretfox" posted and downloaded the thing. It gave me a file called PKGBUILD on my desktop. When I run makepkg I get this:
==> ERROR: Install scriptlet (shared-mime-info.install) does not exist.
Anyone who can help a newbie out?
Edit: I found a fix that worked in the bugreport mentioned earlier in this thread.
Well! Download file PKGBUILD (http://repos.archlinux.org/viewvc.cgi/s … ision=3446) and shared-mime-info.install (http://repos.archlinux.org/viewvc.cgi/s … revision=1) and put them together in an empty directory.
Edit file PKGBUILD, change line "pkgver=0.40" to "pkgver=0.23" and save file.
Run "makepkg -g" from the same directory, it will download source package and show the md5 line (something like "md5sums=('xxxxxxxxxxxx.....')").
Substitute the md5 line in PKGBUILD with the previous shown by makepkg.
Now run "makepkg" command in the same directory and wait package creation.
If compilation will be ok you'll obtain a file named "shared-mime-info-0.23-1-i686.pkg.tar.gz".
Run command "pacman -U shared-mime-info-0.23-1-i686.pkg.tar.gz" as root.
Check if mime type is ok now. It would be!
I hope it's useful. Bye

Similar Messages

Lack of 3g after system update

Hello :-)
It's problem with Xperia E dual
Few days ago I updated the system to the 4.1.1 version (compilation 11.3.A.1.39).
Unfortunatelly after updating I've discovered that smartphone don't works with 3G. On the display I've only icon "E". Before updating there was typically "H". Of course now the transfer is slower than before and of course I'm not happy of that.
I try to solve this problem - choose in menu list of available provider and... there are only 2G nets. Because I've functioning still in the same place of live and the problem has occured after the updating I'm sure that it's strictly connected.
Is there any solution for that?
Another problem is with trying to call. After system updating typically twice a day I have to restart smartphone because it's totally hanged. No one can connect with me and I can't call to anybody. Smartphone looks normally and doesn't give any siglan that something is wrong. But when I try to connect to somebody I direst the number and... there is no signal at all. After few seconds telephon return to main menu. There is also no record about this trial of connection in the list of done connections. It's very uncomfortable situation.
Sure, there are also some adventages with the system updating but problems mentioned above are really annoing.
Have you any solutions for it?
Thanks in advance.
Rafal
Solved!
Go to Solution.

Hi, try repairing phone software with PC Companion or Update Service.
http://www.sonymobile.com/gb/tools/pc-companion/
http://www.sonymobile.com/gb/tools/update-service/
Be aware that this will erase phone data completely, backup if necessary.
Before proceeding with software repair, confirm with your Network Operator that there is nothing wrong with the network. Also, remove and reinsert SIM card and try again (have a close look at the contact surface, ensure that it is relatively clean).
Don't forget to mark correct answer as Accepted Solution.
If you find the post helpful, press Kudos.

How to turn off alarm after system update?

I get alarm when restarting my T400 after system update. Can anyone give me suggestions to turn off this alarm?
Thanks,

I have no display > powercontrol in openbox, gnome or fluxbox, What are you talking about?

HAL not mounting removable drives after system update

I updated all packages yestarday and after reboot, some xfce4 stuff wouldn't work (which I suppose is kinda understandable since the update seems to be big). No problems with that, quickly re-configured what was causing trouble.
HAL isn't working at all now though. I can mount usb disks manually, but nothing happens when I insert them... I followed many HAL troubleshooting instructions in the Wiki and even in these forums, but with no success.
Here's my hal.conf (to which I had to re-add the last lines because they were gone after the update. The file was apparently back to it's default values.)
<!DOCTYPE busconfig PUBLIC
"-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<busconfig>


<policy user="hal">
<allow own="org.freedesktop.Hal"/>
</policy>
<policy user="root">
<allow own="org.freedesktop.Hal"/>
</policy>

<policy context="default">
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.DBus.Introspectable"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.DBus.Properties" />
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Manager"/>
</policy>

<policy at_console="true">
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.CPUFreq"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.DockStation"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.KillSwitch"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.KeyboardBacklight"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.LaptopPanel"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Leds"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.LightSensor"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Storage"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Storage.Removable"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.SystemPowerManagement"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Volume"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Volume.Crypto"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.WakeOnLan"/>
</policy>

<policy user="root">
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.CPUFreq"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.DockStation"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.KillSwitch"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.KeyboardBacklight"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.LaptopPanel"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Leds"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.LightSensor"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Storage"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Storage.Removable"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.SystemPowerManagement"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Volume"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.Volume.Crypto"/>
<allow send_destination="org.freedesktop.Hal"
send_interface="org.freedesktop.Hal.Device.WakeOnLan"/>
</policy>
<policy group="power">
<allow send_interface="org.freedesktop.Hal.Device.SystemPowerManagement"/>
<allow send_interface="org.freedesktop.Hal.Device.LaptopPanel"/>
</policy>
<policy group="storage">
<allow send_interface="org.freedesktop.Hal.Device.Volume"/>
<allow send_interface="org.freedesktop.Hal.Device.Volume.Crypto"/>
</policy>
</busconfig>

Thanks. I've read that somewhere, didn't really take it seriously. Apparently an alternative is udisks. Can anyone give me some tips to make it work? My googling isn't very effective today. Thanks!

Can't boot after system update: unknown filesystem type

After running a system update, including updating the kernel, I can't boot to the new kernel.
On booting, grub loads the kernel image, runs/loads udev, but then fails to mount the root partition with error:
mount: unknown filesystem type 'ext4'
I have tried reinstalling the 'linux' package via packman several times, also trying the --recursive argument to make sure all my dependencies were there, and after days of googling and tweaking my system, I'm at a loss.
Thank goodness I happened to keep a spare kernel laying around in /boot.
Thanks in advance.
Last edited by jackrabbit (2012-03-22 23:25:28)

The OP can read their partition initially though, it's only after udev that they can't.
Also, try adding "rootfstype=ext4" to your grub kernel line. Is your /boot on a separate partition or part of your / partition?

BannerMaker not working after system update.

Hello all,
I am not trusting Apple now for system updates anymore, because the last couple of updates, after updating my system software, I have problems. I never have these issues with Windows.
Getting to my point, I use BannerMaker (an app created by some Fed agency that I had found googling because Apple doesn't support it as standard, and Windows already had this for years to comply with DOD requirements) to use for a login warning legal note, etc. This goes on to the login window only when you disable the icon/name login. I was in the process of updating it and it told me that the loginwindow.plist wasn't found. I found it on the Spotlight, but I had no way of changing it.
I should also note that after the system update, the login process reverted back to the icon/name login, which never happened. I always require me and another user to type their username because to protect the user's privacy.
How can I get BannerMaker to work again, or how can I get into that file so I can change it and I also want to know if other users had their loginwindow settings mysteriously affected by the update?
I am really disappointed by the lousy updates that paralyzes my security and other issues with previous updates, which I won't get into. I am disappointed with Apple right now.
Steven

I had a feeling that was going to happen. Well I just don't have the patience to do that. Apple needs to go onto the Windows system that you could delete specific updates rather than reinstalling the system software. And I also don't like how updates affect work around apps, how they close them down because they are not authorized software. I need a secure system, and Apple won't let me. **** to screw with them, I might just give my mother my MacBook and I go get a Windows notebook. I had nothing but problems since I got this MacBook.

Missing ttyUSB0 and cant hibernate after system update

Hi! I'm using usb modem huawai. Before my yesterday's update everything was fine, but after it ttyUSB0 had gone missing. E.g. it (ttyUSB0) doesn't appear when i plug in my usb modem any more. Also gnome's hibernate utility doesn't work anymore. When I stop working and press System -> Shut Down -> Hibernate it looks like it suspends to my swap disk, but it doesn't resume when i start over it works like if i rebooted.
I suppose these two issues r connected and their cause is system update. Any ideas?

usbserial is loaded. lsusb shows:
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 09da:000a A4 Tech Co., Ltd Port Mouse
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 005: ID 12d1:1446 Huawei Technologies Co., Ltd.
Bus 002 Device 002: ID 064e:c107 Suyin Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
and i made
>pacman - Suu

MySQL socket problems after system update

I have been using my new Mac Mini Snow Leopard server as Squeezebox Server for over a month wihtout problems. After a system update this weekend I started to get MySQL socket errors after reboot.
Started; log sequence number 0 43655
091213 17:10:04 [ERROR] Can't start server : Bind on unix socket: Invalid argument
091213 17:10:04 [ERROR] Do you already have another mysqld server running on socket: /Users/admin/Library/Caches/Squeezebox/squeezebox-mysql.sock ?
091213 17:10:04 [ERROR] Aborting
Although I have posted this issue to the Squeezebox forum (http://forums.slimdevices.com/showthread.php?t=72510) where it primarily belongs to I wanted to hear if anyone maybe had an idea what recent changes in Apple updates could cause this? Maybe someone else has similar MySQL problems with other installations? I am a bit desperate by now so any idea or hint is appreciated.

Here was my solution/workaround for this issue to the rest of us poor fellas that have too fight around with Squeezebox server from time to time:
I setup SBS to use the the standard MySQL installation on Mac OS X SL Server since I could get it to run without problems from Server Admin. Here are the instruction from the SBS Wiki:
http://wiki.slimdevices.com/index.php/ExistingMySQLInstance
However, I had to deviate a bit from that in order to make it work since it seems a bit outdated.
First deviation was necessary for the MySQL access privileges. Notice the extra grant to slimserver@localhost. Don't ask me why but this worked. I do also not know whether both grants would be necessary because I haven't tried it. Feel free to improve it:
# mysql -u admin_user -p
Enter password: admin_password
Welcome to the MySQL monitor.
Commands end with ; or \g.
Your MySQL connection id is 103 to server version: 5.0.24a-log
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> create database slimserver;
Query OK, 1 row affected (0.22 sec)
mysql> grant all on slimserver.* to slimserver identified by 'slimserver_password';
Query OK, 0 rows affected (0.13 sec)
mysql> grant all on slimserver.* to slimserver@localhost identified by 'slimserver_password';
Query OK, 0 rows affected (0.13 sec)
mysql> flush privileges;
Query OK,
mysql> quit
There were also slight differences necessary in the preferences setup because MySQL socket location was different from the standard one. Here are my db entries ~/Library/Application Support/Squeezebox/server.prefs:
dbpassword: slimserver_password
dbsource: dbi:mysql:database=slimserver;mysql_socket=/var/mysql/mysql.sock
dbusername: slimserver
Notice the extra mysql_socket configuration.

No file sharing after system update

Yesterday, I performed a System Update. Since then, my Z61t has not allowed file sharing on my network. Prior to and after the update, I have made no configuration changes to my file sharing settings. I have checked the settings, and they are proper. I have tried unsuccessfully to stop and restart sharing. The Z61t and its shared drives and folders can be seen from other network computers in their respective My Network Places, but when trying to connect to any shared drive or folder of my Z61t, I receive an error message. The error message states that the drive is "not accessible." It also states, "You may not have permission to use this network resource," and "Not enough server storage is available to process this command." Not even the Shared Documents folder is available on the network. This is not a firewall issue, because I have tried unsuccessfully to connect with the firewall turned off.
Will some kind soul please help me determine what the problem is and how to fix it?

Try if your network works ok.
Start command promt in Z61t
type ipconfig
Start command promt in your other pc
type ping "ip addred of z61t"
IF this fails your network is not ok or firewalled.
also try to disable simple file sharing from folder options.

Can't message anyone on ichat after system updates

After I did my system updates today, I had a problem with my ichat. I can sign on, but can't message people. I try to message them and the little box opens and when I type something it says add at least 1 person to this chat... and it unexpectedly quits a lot too.
How can I fix this?

Oh, yeah I did the Mac OS X Update 10.5.2 and when I opened it as a log file this is what came up:
2007-11-17 19:52:49 -0800: Installed "Mac OS X Update" (10.5.1)
2007-11-17 19:53:03 -0800: Installed "Remote Desktop Client" (3.2.1)
2007-11-17 19:53:15 -0800: Installed "iDVD Update" (7.0.1)
2007-11-17 19:53:24 -0800: Installed "iMovie Update" (7.1)
2007-11-17 19:53:33 -0800: Installed "iWeb Update" (2.0.2)
2007-11-17 19:54:01 -0800: Installed "iTunes" (7.5)
2007-11-17 19:54:10 -0800: Installed "Numbers Update" (1.0.1)
2007-11-17 19:54:33 -0800: Installed "QuickTime" (7.3)
2007-11-17 19:54:54 -0800: Installed "GarageBand Update" (4.1)
2007-11-17 19:55:16 -0800: Installed "Pages Update" (3.0.1)
2007-11-17 19:55:37 -0800: Installed "iPhoto Update" (7.1)
2007-11-17 19:55:48 -0800: Installed "Keynote Update" (4.0.1)
2007-11-17 20:27:19 -0800: Installed "iPhoto Update" (7.1.1)
2007-12-17 20:02:36 -0800: Installed "QuickTime" (7.3.1)
2007-12-17 20:03:15 -0800: Installed "GarageBand Update" (4.1.1)
2008-01-01 02:45:47 -0800: Installed "Security Update 2007-009" (1.1)
2008-01-17 16:43:11 -0800: Installed "iMovie Update" (7.1.1)
2008-01-17 16:43:22 -0800: Installed "Front Row Update" (2.1.2)
2008-01-17 16:43:49 -0800: Installed "QuickTime" (7.4)
2008-01-17 16:44:32 -0800: Installed "iTunes" (7.6)
2008-01-31 19:13:15 -0800: Installed "Keynote Update" (4.0.2)
2008-01-31 19:13:28 -0800: Installed "Pages Update" (3.0.2)
2008-01-31 19:13:41 -0800: Installed "Numbers Update" (1.0.2)
2008-01-31 19:13:53 -0800: Installed "iWeb Update" (2.0.3)
2008-02-06 19:27:53 -0800: Installed "QuickTime" (7.4.1)
2008-02-06 19:28:29 -0800: Installed "iPhoto Update" (7.1.2)
2008-02-17 11:35:18 -0800: Installed "iLife Support" (8.2)
2008-02-17 11:41:23 -0800: Installed "Mac OS X Update" (10.5.2)
2008-02-21 17:23:16 -0800: Installed "iTunes" (7.6.1)
2008-02-21 17:23:29 -0800: Installed "Leopard Graphics Update" (1.0)
2008-02-28 17:08:02 -0800: Installed "iPhoto Update" (7.1.3)
2008-03-06 17:28:48 -0800: Installed "GarageBand Update" (4.1.2)
2008-03-13 19:11:49 -0700: Installed "AirPort Utility" (5.3.1)
For some reason there is no "ichat Update" maybe thats the reason?

Safari hangs after system update

My safari v 5.1.7 hangs while trying to open iys homepage (ie. Yahoo) after a system update. Currently system version is 10.6.8
I have tried various methods such as emptying cache, reset safari and update DNS Servers in the Network. And none works.
Please help

Please read this whole message before doing anything.
This procedure is a diagnostic test. It won’t solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
Third-party system modifications are a common cause of usability problems. By a “system modification,” I mean software that affects the operation of other software — potentially for the worse. The following procedure will help identify which such modifications you've installed. Don’t be alarmed by the complexity of these instructions — they’re easy to carry out and won’t change anything on your Mac.
These steps are to be taken while booted in “normal” mode, not in safe mode. If you’re now running in safe mode, reboot as usual before continuing.
Below are instructions to enter some UNIX shell commands. The commands are harmless, but they must be entered exactly as given in order to work. If you have doubts about the safety of the procedure suggested here, search this site for other discussions in which it’s been followed without any report of ill effects.
Some of the commands will line-wrap or scroll in your browser, but each one is really just a single line, all of which must be selected. You can accomplish this easily by triple-clicking anywhere in the line. The whole line will highlight, and you can then either copy or drag it. The headings “Step 1” and so on are not part of the commands.
Note: If you have more than one user account, Step 2 must be taken as an administrator. Ordinarily that would be the user created automatically when you booted the system for the first time. The other steps should be taken as the user who has the problem, if different. Most personal Macs have only one user, and in that case this paragraph doesn’t apply.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Terminal in the page that opens.
When you launch Terminal, a text window will open with a line already in it, ending either in a dollar sign (“$”) or a percent sign (“%”). If you get the percent sign, enter “sh” (without the quotes) and press return. You should then get a new line ending in a dollar sign.
Step 1
Copy or drag — do not type — the line below into the Terminal window, then press return:
kextstat -kl | awk '!/com\.apple/{printf "%s %s\n", $6, $7}'
Post the lines of output (if any) that appear below what you just entered (the text, please, not a screenshot.) You can omit the final line ending in “$”.
Step 2
Repeat with this line:
sudo launchctl list | sed 1d | awk '!/0x|com\.(apple|openssh|vix)|edu\.mit|org\.(amavis|apache|cups|isc|ntp|postfix|x)/{print $3}'
This time, you'll be prompted for your login password, which won't be displayed when you type it. You may get a one-time warning not to screw up. You don't need to post the warning.
Note: If you don’t have a login password, you’ll need to set one before taking this step. If that’s not possible, skip to the next step.
Step 3
launchctl list | sed 1d | awk '!/0x|com\.apple|edu\.mit|org\.(x|openbsd)/{print $3}'
Step 4
ls -1A /e*/mach* {,/}L*/{Ad,Compon,Ex,Fram,In,Keyb,La,Mail/Bu,P*P,Priv,Qu,Scripti,Servi,Spo,Sta}* L*/Fonts 2> /dev/null
Important: If you synchronize with a MobileMe account, your me.com email address may appear in the output of the above command. If so, anonymize it before posting.
Step 5
osascript -e 'tell application "System Events" to get name of every login item' 2> /dev/null
Remember, steps 1-5 are all drag-and-drop or copy-and-paste, whichever you prefer — no typing, except your password. Also remember to post the output.
You can then quit Terminal.

Help 1394 setting gone after bios update v7.7 K7N2 Delta ILSR

hi, i recently updated the bios of my mobo I boot from a windows 98 boot disk copied the bios file to the ramdrive execute the update utility with the bios file restarted then after succesful flashing i've noticed that the 1394 setting in the bios is gone but system booted fine. how can i fix this please help what did i do wrong should reflashed it?

sorry, i've searched for similar problems in the forums bellybuster have same thing I did the solution now 1394 is back.
its good to have such talented people
MSI rocks
Thanks!

LENOVO 3000 G230 DVD DRIVE Gone After BIOS Update

Hi,
After I updated my bios with latest one from the website http://consumersupport.lenovo.com/en/DriversDownloads/drivers_show_2191.html, my DVD drive is gone, not just from windows but i cannot find it in the BIOS.
Pls any one give me BIOS update, prior to this? any help in making my DVD drive show up again.
thank you,
ocavid
PS: Prior to updating the bios i can still work with the DVD drive but after I applied the update and the system rebooted, my DVD drive is gone.

I have successed to find again my CD/DVD drive both in BIOS and Windows 7 by doing the following:
(1). Press F2 at "Lenovo" start up display to enter BIOS
(2). Go to "Main" (the place showing also Harddisk Drive) and enter F9 for Set Default.
(3). Go to "Boot" and enter F9 for Set Default
(4). Exit with save.
Hope the information is usefull for all.

Excite PRO 3G connection not work after system update

Hello, I live in Italy and on last Sunday (january 26th) my Excite PRO tablet (model AT10LE-A-10H) got the Android version 4.3.201121220.35. After restart my wifi works fine, all other app work fine, but my 3g connection doesn't work, mobile network bar is empty and it says "no service". My sim card is ok. I used this sim card before the system update and I didn't get any problem with Android 4.2.2.
Please help me I'm waiting for your help.
Thank you
Regards

This is the forums for Toshiba USA. Unfortunately, we don't have informaiton about your model. You may want to contact Toshiba in your region. You could check the Toshiba Europe forums.
- Peter

After System Update keyboard doesn't work -MacBook

Here is what happened and I was able to fix, someway... but not definetly.
I updated to Snow Leopard and everything was fine. After I launched System Update to finish the update, I installed a few ones then I rebooted.
At the login I realized that some of the keys didn't work anymore. Namely
0 = P ] ; \ / ENTER
those what I found.
With the help of the virtual keyboard I was able to take a look at the log and I noticed that the /System/Library/Extensions/AppleHIDKeyboard.kext was updated just before the last working configuration...
Luckily I had a bootable backup of the system before Snow Leopard, so I boot from the external USB drive and copied the old AppleHIDKeyboard.kext in place of the new one, that I saved with .bak extension.
I rebooted and the keyboard was properly working again.
I think my fix is "dirty". I experienced some slowdowns here and there and I found a log message stating:
com.apple.kextcache[271] AppleHIDKeyboard.kext does not declare a kernel dependency; using com.apple.kernel.6.0.
I'm wondering why the keyboard stopped working and if there is a better way to fix it.
Any comment? (Please)
All log messages containig "keyboard" follows
Thanks
<START OF LOG MESSAGES CONTAINING "keyboard">
[[MARKER THIS IS AFTER SNOW LEOPARD UPDATE]]
16/03/2010 14:47:53 pkgutil[1163] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/CodeDirectory' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/CodeDirectory'.
16/03/2010 14:47:53 pkgutil[1164] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/CodeRequirements' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/CodeRequirements'.
16/03/2010 14:47:54 pkgutil[1165] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/CodeResources' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/CodeResources'.
16/03/2010 14:47:54 pkgutil[1166] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/CodeSignature' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/CodeSignature'.
16/03/2010 14:47:54 pkgutil[1167] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/Info.plist' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/Info.plist'.
16/03/2010 14:47:54 pkgutil[1168] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/MacOS/AppleBluetoothHIDKeyboard' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/MacOS/AppleBluetoothHIDKeyboard'.
16/03/2010 14:47:54 pkgutil[1169] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/Resources/AppleBluetoothHIDKeyboard.plist' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/Resources/AppleBluetoothHIDKeyboard.plist'.
16/03/2010 14:47:54 pkgutil[1170] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/_CodeSignature/CodeDirectory' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/_CodeSignature/CodeDirectory'.
16/03/2010 14:47:54 pkgutil[1171] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/_CodeSignature/CodeRequirements' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/_CodeSignature/CodeRequirements'.
16/03/2010 14:47:54 pkgutil[1172] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/_CodeSignature/CodeResources' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/_CodeSignature/CodeResources'.
16/03/2010 14:47:54 pkgutil[1173] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/_CodeSignature/CodeSignature' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/_CodeSignature/CodeSignature'.
16/03/2010 14:47:54 pkgutil[1174] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoot hHIDKeyboard.kext/Contents/version.plist' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleBluetoo thHIDKeyboard.kext/Contents/version.plist'.
16/03/2010 14:47:54 pkgutil[1175] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/CodeDirectory' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/CodeDirectory'.
16/03/2010 14:47:54 pkgutil[1176] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/CodeRequirements' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/CodeRequirements'.
16/03/2010 14:47:55 pkgutil[1177] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/CodeResources' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/CodeResources'.
16/03/2010 14:47:55 pkgutil[1178] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/CodeSignature' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/CodeSignature'.
16/03/2010 14:47:55 pkgutil[1179] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/Info.plist' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/Info.plist'.
16/03/2010 14:47:55 pkgutil[1180] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/MacOS/AppleUSBHIDKeyboard' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/MacOS/AppleUSBHIDKeyboard'.
16/03/2010 14:47:55 pkgutil[1181] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/_CodeSignature/CodeDirectory' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/_CodeSignature/CodeDirectory'.
16/03/2010 14:47:55 pkgutil[1182] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/_CodeSignature/CodeRequirements' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/_CodeSignature/CodeRequirements'.
16/03/2010 14:47:55 pkgutil[1183] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/_CodeSignature/CodeResources' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/_CodeSignature/CodeResources'.
16/03/2010 14:47:55 pkgutil[1184] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/_CodeSignature/CodeSignature' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/_CodeSignature/CodeSignature'.
16/03/2010 14:47:55 pkgutil[1185] Updating receipt 'com.apple.pkg.BaseSystem' path 'System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDKe yboard.kext/Contents/version.plist' on '/' with actual metadata from '/System/Library/Extensions/AppleHIDKeyboard.kext/Contents/PlugIns/AppleUSBHIDK eyboard.kext/Contents/version.plist'.
[[MARKER NOW I REBOOTED AND THE KEYBOARD DID NOT WORK]]
16/03/2010 17:24:43 /System/Library/Input Methods/KeyboardViewer.app/Contents/MacOS/KeyboardViewer[313] CGSKeyTranslateInitialize: KLGetCurrentKeyboardLayout or KLGetKeyboardLayoutProperty is not available, fall back to USA keymap
16/03/2010 17:55:06 /System/Library/Input Methods/KeyboardViewer.app/Contents/MacOS/KeyboardViewer[337] CGSKeyTranslateInitialize: KLGetCurrentKeyboardLayout or KLGetKeyboardLayoutProperty is not available, fall back to USA keymap
[[MARKER NOW I WILL TRY TO INSTALL A FIRMWARE UPDATE, BUT IT WILL STATE THAT MY SYSTEM DOESN'T NEED IT. SO NOTHING DONE]]
16/03/2010 21:27:26 /System/Library/Input Methods/KeyboardViewer.app/Contents/MacOS/KeyboardViewer[433] CGSKeyTranslateInitialize: KLGetCurrentKeyboardLayout or KLGetKeyboardLayoutProperty is not available, fall back to USA keymap
16/03/2010 21:33:37 Installer[462] Opened from: /Volumes/MacBook MacBook Pro Keyboard Update/MacBookMacBookProKbdSU.pkg
16/03/2010 21:36:52 /System/Library/Input Methods/KeyboardViewer.app/Contents/MacOS/KeyboardViewer[490] CGSKeyTranslateInitialize: KLGetCurrentKeyboardLayout or KLGetKeyboardLayoutProperty is not available, fall back to USA keymap
17/03/2010 07:13:25 /System/Library/Input Methods/KeyboardViewer.app/Contents/MacOS/KeyboardViewer[662] CGSKeyTranslateInitialize: KLGetCurrentKeyboardLayout or KLGetKeyboardLayoutProperty is not available, fall back to USA keymap
[[MARKER AND HERE IS AFTER I RESTORED THE OLD AppleHIDKeyboard.kext...]
17/03/2010 07:44:23 com.apple.launchd.peruser.502[182] ([0x0-0x60060].com.apple.KeyboardViewer[662]) Exited: Killed
17/03/2010 08:21:55 com.apple.kextcache[271] AppleHIDKeyboard.kext does not declare a kernel dependency; using com.apple.kernel.6.0.
<END OF LOGS>

It is never a good idea to mix system components like kext's from different OS X versions. If you right-click on for instance the AppleHIDKeyboard.kext & choose "Show contents" you will see that it is a bundle composed of many individual files. Many of these files contain information about files in other OS bundles. Similarly, other OS bundles may contain info about the files in this bundle. This tells the OS what +set of files+ it can & can't use for various functions.
IOW, kext's are not self-contained, functionally independent items. When you replace one with one from a different OS version, its info about other files usually won't be right. This can & very often does cause problems. Some are minor but others can cause progressively greater problems, eventually damaging the OS enough that it becomes inoperative.
So, your fix is almost certainly "dirty."
It's also not addressing the source of the problem. There is nothing wrong with Snow Leopard's AppleHIDKeyboard.kext file (version 1.2.0). Snow Leopard works perfectly well with my & thousands of other users' MacBooks. The cause of your problem could be many things, but this is not one of them. If you can accept that, there are several things you can do to find the cause, starting with running the Apple Hardware Test to see if it finds up any problems with your MacBook.

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