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Chameleon => Bug Reports => Topic started by: SA22C on September 15, 2009, 01:47:31 AM

Title: EBIOS Read Error 0x04 [Fixed]
Post by: SA22C on September 15, 2009, 01:47:31 AM

I recently started getting the following error:

EBIOS Read Error 0x04 (followed by memory address)

These errors occur for several minutes, spanning quite a few addresses.  Finally, I get to the Chameleon GUI and am able to boot into OS X or Windows or whatever.  I have tried reinstalling Chameleon and re-flashing my BIOS with no result.

This error cropped up with no warning and without anything having changed that I can see.  RC3 has been installed for more than a week and I've had the same BIOS version for months. 

Title: Re: EBIOS Read Error 0x04 [Fixed]
Post by: SA22C on September 19, 2009, 03:52:51 PM

If anyone is interested, this error arose from a corrupted partition map on one of the hard drives in my box that had nothing to do with booting OS X or Windows.  Reformatting the drive removed the timeout issues.

Title: Re: EBIOS Read Error 0x04 [Fixed]
Post by: BladeRunner on September 19, 2009, 04:18:33 PM

Quote from: SA22C on September 19, 2009, 03:52:51 PM

If anyone is interested, this error arose from a corrupted partition map on one of the hard drives in my box that had nothing to do with booting OS X or Windows.  Reformatting the drive removed the timeout issues.

How did you identify the problem partition?  Just so we don't need to reformat every partition looking for it. 

Title: Re: EBIOS Read Error 0x04 [Fixed]
Post by: SA22C on September 21, 2009, 07:38:49 AM

Quote from: BladeRunner on September 19, 2009, 04:18:33 PM

Quote from: SA22C on September 19, 2009, 03:52:51 PM

If anyone is interested, this error arose from a corrupted partition map on one of the hard drives in my box that had nothing to do with booting OS X or Windows.  Reformatting the drive removed the timeout issues.

How did you identify the problem partition?  Just so we don't need to reformat every partition looking for it. 

I can shut off SATA ports one by one in the BIOS of my system, so after a few trial-and-errors, I was able to identify the problem drive. After that, I backed up the data and gave the drive a fresh formatting.  It was an NTFS drive, one that had never been used as a boot device before.

Title: Re: EBIOS Read Error 0x04 [Fixed]
Post by: BladeRunner on September 21, 2009, 10:31:50 AM

Thanks for reply.  Don't have that ability in my BIOS, but good to know how it was done anyway.

Title: Re: EBIOS Read Error 0x04 [Fixed]
Post by: SA22C on September 21, 2009, 09:48:12 PM

You could always physically pull all the drives off the board except your boot volume and then add them back one-at-a-time.  The weird thing is that this particular error tended to show up on boot CDs and DVD's, not on HDD's.  ???