Author Topic: Dual boot with any Linux and Windows 7/8 having UEFI  (Read 3363 times)

Offline Just17

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #30 on: December 21, 2012, 01:25:46 AM »
If it was dubious then why are there so many articles on the internet stating what I said is entirely possible?


Because the internet is full of BS and repeated ill-founded misinformation.

Quote
http://www.theregister.co.uk/2011/02/21/flash_drive_erasing_peril/

You would have to get them to divulge their sources apparently.


SSDs are not the same as HDDs.
Most manufacturers provide a means of zero-ing their SSD drives.

Quote
For me, I do not want to take any chances. All it takes is one time to cause problems.

http://www.tomshardware.com/forum/244694-32-does-filling-delete-data

"A simple zero-fill (one pass) will be enough to make sure that no software can recover anything, but the CIA/NSA can take the drive apart in their labs and recover from a zero-fill pretty easily. "

And so can many others who have the right equipment.


More BS .......  one poster even referred to Peter Guttman's theory - untested at the time (1996) - that some data should be recoverable from floppy disks .........  and the method might also apply to really old types of HDD.
Peter Guttman himself added to his paper later to point out that his proposed method could not possibly be used on modern HDDs.

It is an internet myth!


If you want to read something that is based on science, then have a read of this paper

http://link.springer.com/chapter/10.1007%2F978-3-540-89862-7_21#page-1

You will get the idea from what little is available free ......  but if you have a real interest in the subject then I suggest you purchase the report.



« Last Edit: December 21, 2012, 01:27:25 AM by Just17 »
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Offline zacharysonicfast

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #31 on: December 21, 2012, 08:39:03 AM »
Thanks for the link.
Always wanting to read both side of an issue.

Since I do not have a bank account, credit card, etc I cannot purchase anything online. (Been debt free for 6 years now!)

I don't trust the government. They keep too much secret from the public.

I will still err on the side of caution though. I won't take any chances that I don't have to, just in case...

All it takes is one of their claims to be true and problems could arise.

Have you seen this article?

http://www.geek.com/articles/news/researchers-demonstrate-persistent-rootkit-that-survives-hard-disk-wipe-20090326/

Offline Just17

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #32 on: December 21, 2012, 09:20:38 AM »
Thanks for the link.
Always wanting to read both side of an issue.


Not only do you need to read both sides, but you also need to give weight to the writer of whatever you are reading, and the year it was written, as well as the research on which it is based.

Look to properly published facts and not internet BS with no references to back up the story.

Quote
Since I do not have a bank account, credit card, etc I cannot purchase anything online. (Been debt free for 6 years now!)

I don't trust the government. They keep too much secret from the public.

I will still err on the side of caution though. I won't take any chances that I don't have to, just in case...

All it takes is one of their claims to be true and problems could arise.


You can read the first two pages for free, which give a synopsis of the result. If you need the details of the tests etc then a purchase is necessary.

By all means err on the side of caution ....  that is always advisable where your data etc is concerned.

That does not mean believing all the BS that the internet throws up .....  most often by people who have little knowledge of what they write about.

Also, I was not aware that the government of any country had claimed to be able to recover data from a wiped HDD.

Do you have a reference to such a claim, or is this also in the realm of unsubstantiated internet claims?

Quote
Have you seen this article?

http://www.geek.com/articles/news/researchers-demonstrate-persistent-rootkit-that-survives-hard-disk-wipe-20090326/


Nothing new or interesting with that - did you notice it was dated 2009?

Anyone with physical access to a computer can do as they wish with it.

Quote
Anybody wishing to use this kind of exploit in the wild would need to already have low-level access to the machine in order to make such a change.


Being careful and erring on the side of caution does not mean being foolishly paranoid  ;)

« Last Edit: December 21, 2012, 12:20:33 PM by Just17 »
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Offline zacharysonicfast

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #33 on: December 21, 2012, 12:16:22 PM »
I just worry that there *might* be something on my computer that I don't know about, can't get rid of, detect, or have a defense against.

With all the criminals out in the world, just about anything you can imagine is probably being worked on by somebody.

Thanks for the discussion. Takes some of the worry away at least.

Do note though that ssd's are supposed to be wiped with all 1's and not zeros.

Something I read from a mfr site a while ago mentioned why but I can't remember.

Offline Just17

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #34 on: December 21, 2012, 01:08:26 PM »
I just worry that there *might* be something on my computer that I don't know about, can't get rid of, detect, or have a defense against.

With all the criminals out in the world, just about anything you can imagine is probably being worked on by somebody.

Thanks for the discussion. Takes some of the worry away at least.

Do note though that ssd's are supposed to be wiped with all 1's and not zeros.

Something I read from a mfr site a while ago mentioned why but I can't remember.

SSD manufacturers supply an application for wiping the drive.
It does need to be done differently to the HDDs.

MLUs rule the roost!

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Offline zacharysonicfast

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #35 on: December 22, 2012, 03:06:11 PM »
I read that garbage collection (AKA Trim) gets rid of renmants too.

Does pclos come with trim activated and built in?

Also, if you had trim (discard) activated on a regular hd, would it cause problems?

Offline Alfred

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #36 on: December 22, 2012, 05:28:06 PM »
Wow
Did this go off track big time.
I thought the discussion was about Windows 7/8 dual boot issues?

Offline zacharysonicfast

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #37 on: December 22, 2012, 06:35:53 PM »
Well, didn't mean to.
However, the info can be useful.

I have to been able to dual boot win7 with uefi and any flavor of linux installed without win7 vomiting and forcing a r/r. Then it leave linux impotent.

I can dual boot if I use puppy linux or manually plug/unplug and external linux drive then on startup select that drive. And puppy is far too crippled for any serious internet use.


But it is slower and requires more work.

I pulled win7 out and put in mint on on ssd.

Cant wait till pclos comes up to speed...

Offline mellon

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #38 on: December 23, 2012, 04:44:45 AM »
Then perhaps you should consider going a route that  - in my case - proofs to be a much better solution than dual boot;  run Win7 as a guest in a Virtualbox with PcLinuxOs as host.  I will never go back to a dual boot setup.

If your i5 processor is of a type that supports Virtualization and if you have a decent amount of memory and if you have a setup file or install disc to install Win7 in VB, then you may give it a try.  You indicated that you only need win7 to use your USB device to connect your laptop to internet.  This would  probably work fine via Win7 running in a Virtualbox. Prepare though by reading the VirtualBox manual. 

Mellon

Offline bicol_willem

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #39 on: December 23, 2012, 05:12:07 AM »
@mellon:

"You indicated that you only need win7 to use your USB device to connect your laptop to internet.  This would  probably work fine via Win7 running in a Virtualbox."

You could be right but I for one have my doubts... I have tried the same to connect via a USB broadband modem (Dungle) and the results where negative. It won´t connect at all. I moreover think (yes think only so far) that the host is the only system that can connect to the Internet and also allows the guest OS to connect through it. Not the other way around.
Interesting.
Maybe some one can either confirm or ... correct me here.

Offline zacharysonicfast

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Re: Dual boot with any Linux and Windows 7/8 having UEFI
« Reply #40 on: December 23, 2012, 01:40:57 PM »
The laptop did not come with any disks and my burner has been broken for quite a while now.

The host has to 'see' the hardware for the VM to use it. No version of linux but one will autodetect the dongle and even that one the mobile wireless tab is grayed out.

I use linux and skip the dongle for now. A hassle trying t get public wifi to work properly but I manage for the time being.

I hope to find a solution by late spring though. No fun going to the park and can't get online.