Monday, December 11, 2006

Firewire bus problems: an apple kb article

The firewire bus has often been flaky on Apple's machines. Sometimes it stops working, sometimes it restarts under peculiar circumstances. I've always thought this was somehow related to Apple's complex hardware abstraction approach and the complexity of what firewire does (a sort of peer-to-peer mini-lan). Whatever the cause for this perennial problem, it's interesting to note that Firewire audio devices can create a problem that's solvable by an SMU reset on some machines (see link for how to do the SMU reset):
Power Mac G5 (Late 2005), iMac G5 (Ambient Light Sensor): FireWire bus stops responding after computer restarts with FireWire audio device attached

If a FireWire audio device is connected to a Power Mac G5 (Late 2005) or an iMac G5 (Ambient Light Sensor) while the computer is restarting, the FireWire bus will stop responding and no FireWire devices will be detected on the bus. The device may stop responding or stop charging, depending on the specifics of the device.

Sunday, December 10, 2006

Configuring a simplified OS X machine: Simple Finder

Grooaan. I've muttered and complained about how almost-good OS X Simple Finder is -- but I never noticed the Finder menu option to 'Run Full Finder'. Here's the article:
Mac OS X 10.4 Help: Simplifying the desktop

You can simplify the desktop and Finder menus using Simple Finder. Simple Finder is a simplified version of the Mac OS X Finder with fewer menus and limited access to the items on your hard disk...

...users see only three folders in the Dock: Documents, My Applications, and Shared. Any documents they create are saved to their Documents folder. The applications they see in My Applications are the ones you select for them in Accounts preferences. They can also access items you place in the Shared folder.

... To get administrative access to the computer while this user is logged in to Simple Finder, you can choose Finder > Run Full Finder, and enter your name and password. (You'll be able to make changes only if your account has administrative privileges.) When you're done, choose Finder > Return to Simple Finder.
With admin access it's easy to extend Simple Finder by adding icons and folders to the desktop. Note Simple Finder does not actually block users from running software, it only blocks easy access to applications from the Finder. As well as icons put in shared folder, the admin user can switch to Full Finder and put icons on the desktop. [Update: Alas, they disappear when you switch to Simple Finder. Probably the biggest defect with Simple Finder is the inability to lay out icons on the desktop.]

I think Apple should include a brief mention of Simple Finder in their printed documentation. There was a story out recently that many Mac users are over 55. I think for quite a few folks over 70 Simple Finder can be a good introduction to the OS. If Apple really introduces remote maintenance with 10.5, and if they do a few tweaks to SF (including renaming it to something like 'Fast Finder'), and a bit of marketing, they'll have natural market with elder users and true computerphobes. (I happen to think one can make a good case for computerphobia btw.)

Saturday, December 09, 2006

How Google Reader beats Bloglines

I'm a longtime Bloglines fan, but there's a flaw there. Bloglines shares all feeds by default. You can mark a feed as private, but it will still be found by searches. So it's not a good place to put a Backpackit feed that exposes business ideas, for example.

Google Reader is private by default. Only items in the shared folder are public. Users can subscribe to the shared folder, thereby doing secondary syndication. I'm going to try GR for a while.

Friday, December 08, 2006

Apple kb: unable to delete file - system immutable flag

Wow. This is ugly. There's a defect in OS X where the "system immutable bit" is applied incorrectly, the result is an immortal file or folder. The fix is non-trivial:
Unable to move, unlock, modify, or copy an item in Mac OS X

... If you have attempted to unlock a file in the Finder but it is still locked, follow these steps to remove the system immutable bit from affected files, which can cause this issue.

Mac OS X 10.4 or later

1. Start in single-user mode; for instructions see Mac OS X: How to Start up in Single-User or Verbose Mode.
2. Type this, followed by Return: mount -uw /
3. Type this, followed by Return:
cd /Library/Preferences/SystemConfiguration

4. Type this, on a single line, followed by Return:
defaults write /Library/Preferences/SystemConfiguration/autodiskmount AutomountDisksWithoutUserLogin -bool true

5. Type this, followed by Return: sh /etc/rc

6. Wait for the on screen text to stop scrolling and then press Return
7. Type this, followed by Return:
find / -flags schg -exec chflags noschg {} \;

8. Once this is finished, type this followed by Return:
rm /Library/Preferences/SystemConfiguration/autodiskmount.plist

9. Type this followed by Return: reboot
Geez, why not ask users to fire up a hex editor? I had a delete problem once (only), but the OS X 'secure delete' (it's on the Finder menu) took care of it. Next I'd try using Disk Utility and/or fsck. This would be my very last option. One hopes Apple will deal with this in a future version of Disk Utility -- or figure out how this bug gets triggered.

Gmail now a full replacement for ISP email services

This may be old, but it's happened so gradually it passed me by. Gmail, still in "beta", has morphed into a complete replacement for traditional ISP email services.

Sure it's been a great email client for years -- I've used it since about day one. At first, however, it was a standalone webmail service. Then Google introduced POP functionality (alas, not IMAP, which is what geeks really want). Then they combined POP with archiving and forwarding -- so you can pick up email from the inbox and Gmail will automatically archive it. Lately, and I didn't noticWhat I didn't notice, they've added authenticated SMTP (sending services). The latter passed me by, but it's documented in Gmail's email configuration directions. Maybe Google reasoned, correctly, that distinguishing between POP and SMTP would just confuse everyone -- so they only announced the POP portion.

With spam filtering [1], POP, and authenticated SMTP [2] Gmail is a full replacement for ISP email services. Users of traditional email clients (OS X Mail.app, Outlook Express, Mozilla, Thunderbird, etc) who start out with Gmail can switch ISPs with impunity, without any loss of email services [3]. Users who need a very simplified email interface (visual issues, elderly, etc) can use special market email software with Gmail.

Email is a big part of the identity management and reputation management functions that will be fundamental in the next 20 years. Google has stealthily split this functionality from connectivity provision. Clever of them. Now, how did I miss this?

[1] Not on forwarded email - so beware!. It works well on email sent directly to gmail.com
[2] Some trash-quality ISPs block the ports used for authenticated SMTP.
[3] Just forward from the ISP provided email. If Gmail managed spam on forwarded email it would be just about perfect.

Thursday, December 07, 2006

Sherlock: why doesn't Apple kill it?

My new MacBook, I realized, has Sherlock on it. Version 3.6.2. Universal!

It even still works a bit. Some of the standard channels are no longer available, but others work. It was a bit flaky -- sometimes the channel add menus were grayed out, but then all but 'add channel' became available.

It's useless though. I reread the last Sherlock blurb Apple did (Jaguar):
nterested in going to a movie tonight or this weekend? The Movie channel lets you browse among movie title or nearby theaters, and it will show you everything from theater locations to show times, ratings, run times, summaries, and trailers, all in a single window that lets you switch instantly among the possibilities. The Stock channel keeps a list of what you look up so you can click among them for the current price, a performance graph you can change the time line for on the fly via a popup menu, and a list of news headlines you can browse, reading the stories in the pane below. Want to follow the story to its web page? A double click will take you there. ..

... It’s best, though, to think of Sherlock as a service provider that just happens to use your browser to fetch web pages as one of the services it provides. Need something translated from one language to another? Ask Sherlock. Want a real dictionary definition of a word alongside a real thesaurus listing of related words? Ask Sherlock. Wish you could use the yellow pages without wrestling with all that floppiness and weight, and instantly see a location map for each entry you browse? Ask Sherlock. And you can look forward to asking Sherlock to perform more and more services for you as time goes by.
These examples still work, but FeedReaders work much better for scanning news, and it's hard to remember to use Sherlock when it's easier to fire up Google for everything else. We live in our browsers now, Sherlock is a relic of another era.

Now Sherlock merely confuses novices; it looks and feels decrepit. Apple needs to take it out of the OS distribution.

Update 12/9/06: The Backpackit widget finally got me using the OS X Dashboard. I actually kind of like them now, there are a handful I find useful (check out this list). Widgets have replaced the parts of Sherlock that were actually useful. Apple should do a Dashboard page called "Sherlock replacement" and host Widgets there that do what Sherlock once did.

Wednesday, December 06, 2006

Joys of Google checkout

A buddy convinced me to buy the fancy Etymotic mobile headset, and then found me a deal: Buy.com - Etymotic ETY-COM - Handsfree Mobile Phone Headset - ER22-C. Buy.com supports Google Checkout, and is offering a $10 discount if you use it.

I love the Google checkout experience; it's really leveled the playing field against Amazon (I am a big Amazon fan, but their not perfect ...). One of the nicest touches is I can keep my email secret from the retailer, but still get key messages redirected to my gmail account. I like the transaction records, the receipt tracking etc.

Buy.com is a much more interesting vendor since they added Google checkout ...