I've had to erase the hard drive and do a fresh install but cannot seem to find 
a way back to lion.
I made a lion boot USB disk and am back to the OSX utilities window but 
reinstall only starts Mavericks again. I notice that the osx base system is 
still on my disk but it's not possible to erase. Finally even when I boot to 
the USB drive using command r, it still boots to mavericks.

It's been an all nighter getting to this point,
I welcome any advise!

Adrian.

Sent from my iPad

> On 31 Oct 2013, at 01:18, Testcard <[email protected]> wrote:
> 
> Thanks for your help Sam!
> 
> Today the waves are starting to calm down! I just wish Apple had stuck to 
> 'nice' furry animal names.
> 
> Adrian.
> 
> Sent from my iPhone
> 
>> On 30 Oct 2013, at 20:57, Sam - MacAmbulance <[email protected]> wrote:
>> 
>> Don’t jinx it!
>> 
>>              
>> MacAmbulance Ltd.
>> Providing Affordable Mac/PC Support and Web Development
>> 
>> Sam Mullen
>> +44 (0)7747778022
>> [email protected]
>> www.macambulance.co.uk
>> MacAmbulance Ltd. is a registered company in England & Wales, registration 
>> number 8466597
>> This email is intended solely for the addressed recipients and may contain 
>> privileged or confidential information. If you have received this email in 
>> error please notify the sender and delete the email immediately.
>> 
>>> On 30 Oct 2013, at 19:56, Testcard <[email protected]> wrote:
>>> 
>>> Just to report.
>>> After re-installing sound drivers for motu card. Deleting 'cleanmymac'. The 
>>> MacBook Pro has not crashed yet. The 'time machine' is backing up so far.
>>> 
>>> Maybe I will keep Mavericks after all...
>>> 
>>> Adrian.
>>> 
>>> Sent from my iPhone
>>> 
>>>> On 30 Oct 2013, at 12:45, Testcard <[email protected]> wrote:
>>>> 
>>>> Toby, 
>>>> Thanks, I did get a new mother board a few years ago courtesy of Apple so 
>>>> hopefully that's in the past. A clean install sounds rather like 
>>>> re-installing my life ! However if it gets to that stage I guess I shall 
>>>> have to bite the bullet.
>>>> 
>>>> So far Sam says it looks like the drivers for the  FireWire card (motu) is 
>>>> partially to blame but I've got to run some more tests and screenshots.
>>>> 
>>>> To be continued.
>>>> 
>>>> Adrian
>>>> 
>>>> Sent from my iPhone
>>>> 
>>>>> On 30 Oct 2013, at 12:36, Toby Leighton <[email protected]> wrote:
>>>>> 
>>>>> The macbook pros of that age are succeptable to the nvidia problem (I 
>>>>> have one)  The symptom for me though was that one morning the laptop was 
>>>>> simply dead.  I'd get it looked at by apple store even though its working 
>>>>> as there is a parts recall out and yours may be eligible (free).
>>>>> 
>>>>> I installed mavericks on mine as a completely clean install - I erased 
>>>>> the disk with zeros rather than fast erase and haven't had any problems, 
>>>>> I put the mavericks installer onto a usb hard drive with a long terminal 
>>>>> command that google will help you find.
>>>>> 
>>>>> I haven't re-time machined it yet and it was set up as a from scratch 
>>>>> computer, as it had been updated in place from 10.5 to 10.6 to 10.7 to 
>>>>> 10.8 and had picked up loooads of cruft along the way :-)
>>>>> 
>>>>> I have gone for the full disk encryption which Im pretty impressed with 
>>>>> though!
>>>>> 
>>>>> 
>>>>>> On 29 October 2013 22:07, Testcard <[email protected]> wrote:
>>>>>> Thanks Sam,
>>>>>> 
>>>>>> I'm reinstalling Mavericks one more time , then I will do as you 
>>>>>> suggest. I never had this freeze issue before I installed Mavericks so 
>>>>>> it seems linked somehow. Will send the screenshots shortly.
>>>>>> 
>>>>>> Adrian.
>>>>>> 
>>>>>> Sent from my iPad
>>>>>> 
>>>>>>> On 29 Oct 2013, at 22:48, Sam - MacAmbulance <[email protected]> 
>>>>>>> wrote:
>>>>>>> 
>>>>>>> Run a time machine backup with the Console app open, then you’ll be 
>>>>>>> able to see (hopefully) the last thing running before it freezes. 
>>>>>>> Either copy/paste or take a picture and send it to me, I’ll see if I 
>>>>>>> can see what could be happening.
>>>>>>> 
>>>>>>> Usually a completely frozen screen is a RAM error or dodgy graphics 
>>>>>>> card soldering, especially if you’ve got an NVIDIA GeForce 8600M GT.
>>>>>>> 
>>>>>>> Regards
>>>>>>> 
>>>>>>> Sam
>>>>>>> MacAmbulance Ltd.
>>>>>>> Providing Affordable Mac/PC Support and Web Development
>>>>>>> 
>>>>>>> Sam Mullen
>>>>>>> +44 (0)7747778022
>>>>>>> [email protected]
>>>>>>> www.macambulance.co.uk
>>>>>>> MacAmbulance Ltd. is a registered company in England & Wales, 
>>>>>>> registration number 8466597
>>>>>>> This email is intended solely for the addressed recipients and may 
>>>>>>> contain privileged or confidential information. If you have received 
>>>>>>> this email in error please notify the sender and delete the email 
>>>>>>> immediately.
>>>>>>> 
>>>>>>>> On 29 Oct 2013, at 21:42, Testcard <[email protected]> wrote:
>>>>>>>> 
>>>>>>>> Hello,
>>>>>>>> I upgraded to Maverick on its release,
>>>>>>>> On my MacBook Pro 2.2ghz 15inch intel core duo 4gb 667 MHz. Initially 
>>>>>>>> I had no problems then 'time machine' backups resulted in a frozen 
>>>>>>>> screen. I've tried disk utility with no luck. Even that freezes on 
>>>>>>>> commencement with the disk. I then erased the disk (stupid I now 
>>>>>>>> know!) but a fresh disk makes no difference. I'm a bit desperate as I 
>>>>>>>> cannot see what the issue is. I also reinstalled another Maverick in 
>>>>>>>> case the original might be corrupted. 
>>>>>>>> 
>>>>>>>> Any thoughts very welcome.
>>>>>>>> 
>>>>>>>> Adrian.
>>>>>>>> 
>>>>>>>> Sent from my iPhone
>>>>>>>> 
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