VirtualKD VMInstall bug

[Anonymous]

Hi there,

I have never been able to successfully install VirtualKD on the target using the installer targetvminstall.exe, I always seemed to get “Error – cannot access boot configuration data”.

Tired of this failing on multiple versions, I decided to build and debug it myself rather than submitting a query. I have solved the problem, here I detail the bug(?) and solution:

In bootedit.cpp on line 546 is the following test:

if (!m_OSEntries.empty() && !m_Default.GetValue().empty() && !m_Timeout.GetValue().empty())
m_bValid = true;

This test was failing, leaving m_bValid false, causing the error. I narrowed it down to the return from m_Default.GetValue().empty(), and discovered this was erroneously returning that m_Default was empty.

In my boot.ini I noticed that the ‘default’ line begins with a forward slash (/default), I assume this is the case for everyone. I then noticed that line 536 had the test:

else if (!key.icompare(“default”))

and line 534 has:

if (!key.icompare(“timeout”))

Now the timeout line has no forward-slash, so without wanting to waste further time debugging the key.icompare function, I decided to try changing line 536 to:

else if (!key.icompare(“/default”))

This worked and fixed the installer for me, so I assume this function was failing because of the forward slash. I can’t fathom how it could have worked for other people (XP SP2 guest) but I can’t afford to spend any more time on this.

I hope this might be helpful for others.

Kind regards,

Kev

[Anonymous]

I’ve just noticed that on other machines, the forward slash is missing. Not sure what’s going on here, but it seems to be present in only *some* systems… or only my system?!

Bit of a mystery, I assume therefore that I’m in the minority with the forward slash before ‘default’ but if any body else has this problem I guess you can just remove the forward slash!

Sorry for wasting your time if my forward slash was unique 😳

kev

[support]

The forward slash seems to be your unique case (some third-party boot manager?). Anyway, I’ll add support for both “default” and “/default” in the future versions. Thanks for investigating the problem 😉

[stifenhowk]

Hello kevoreilly.
I read your entire problem if you are change your hardware then it will be install and first check your all drives with good anti-virus.

[Author]

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