my ibook g4 hangs on blue screen except in safe mode
my ibook g4 hangs on blue screen except in safe mode
iBook
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my ibook g4 hangs on blue screen except in safe mode
iBook
You could try & start the computer from the install-restore system disc
to see about repairing the hard disk drive, if a verify says there's issues.
Since you don't say what model iBook, or OS X system running in it,
the Blue screen instructions vary by OS X and vintage; the Gray screen
instructions are more generic. System damage can be the cause of a
Blue screen on startup. Sometimes limited to one user account, but
could be large enough an issue to consider more drastic actions.
There are Support articles, I found one that says a few things to try, but
it was about Gray screen during startup, not Blue screen issues. Since
it starts in SafeBoot, it may be repairable. Depends on the cause.
Usually incompatible or damaged login startup files can make Blue screen
and SafeBoot starts in a reduced system mode, and does a self-check...
A second user account may start up normally, if there is no similar defect
in the file system, and not need to run in SafeBoot.
Gray screen appears during startup:
http://support.apple.com/kb/TS2570
Blue screen startup (later OS X, basic concept the same)
http://support.apple.com/kb/PH11043
The fact it starts past the Blue screen in SafeBoot is a good thing. You
likely could look into the Console or other system logs to see details
that present themselves by Time and Date of when it happened...
If you have a complete backup of the system, or a clone on external HDD,
then you may have to test the hard drive, the software, and also consider
the need to perform a secure erase (one to seven pass overwrite zeros)
with Disk Utility, then reformat, partition map for the OS X, and then install.
The same utillity, accessible on booted install disc, can do many things,
so you may not need to reinstall; since the system boots, it may be saved.
Unless there is a low-level defect in the format or sectors of the hard drive.
A secure erase with overwrite of zeros can help resolve that issue. Yet if
the hard drive is old and seem more than 5 years of use, it could be failing.
Good luck! 🙂
my ibook g4 hangs on blue screen except in safe mode