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#1 2009-10-13 5:41 pm
- SomeOneOrOther
- 3-yr-old switcher

- From: Ottawa, Ontario
- Registered: 2004-01-05
- Posts: 521
Snow Leopard - Data Loss bug (?)
This should be interesting, um, in a very bad way.
Data losses in Snow Leopard bug
Tuesday, 13 October 2009
Users of the new Apple operating system Snow Leopard are experiencing massive data losses when logging into their machines under a guest account.
The problem appears to affect those who had a guest account enabled before upgrading to Snow Leopard.
...
Those who use backup services including the Mac's own Time Machine can restore their lost data, but it appears that for those who do not, the data is permanently lost.
Apple said in a statement that the problem "occurs only in extremely rare cases" and that it was working on a fix.
In the meantime, users should delete previous guest accounts and, where necessary, create new ones that are "native" to Snow Leopard.
http://news.bbc.co.uk/2/hi/technology/8304229.stm
EDIT: More from Ars: http://arstechnica.com/apple/news/2009/ … ss-bug.ars
Last edited by SomeOneOrOther (2009-10-13 5:49 pm)
MacBook, 13", early 2008.
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#2 2009-10-13 7:01 pm
- Mr. T
- Best of both worlds

- From: omnipresent
- Registered: 2002-04-02
- Posts: 4223
Re: Snow Leopard - Data Loss bug (?)
One of the reasons I always do a clean install.
while (1) {fork();}
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#3 2009-10-13 7:14 pm
- knobtwirler
- Anthropocentric Temporal Chauvinist

- From: NYC
- Registered: 2003-07-28
- Posts: 3242
Re: Snow Leopard - Data Loss bug (?)
So, does that mean my laptop that has three user accounts is in danger of losing data now that I upgraded to SL? Or are user accounts not guest accounts?
If you look around the table and can't tell who the sucker is, it's you.
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#4 2009-10-13 7:30 pm
- Nefarious
- Tuning Fork
- Moderator

- From: 45°22"N 84°57"W
- Registered: 2002-09-30
- Posts: 7998
Re: Snow Leopard - Data Loss bug (?)
Guest accounts are not user accounts.
Double check your System Preferences / Accounts and make sure that "guest" is disabled ASAP.
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#5 2009-10-13 10:48 pm
Re: Snow Leopard - Data Loss bug (?)
Rule of thumb, then, is to disable any guest accounts before upgrading.
There's what you love to do, and then there's what you get paid to do. Those two things are often different.
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