On Monday, 11 May 2020 23:13:21 UTC+1, Rafael Reis wrote:
>
> Hey Andrew!
>
> Sorry for the late reply, haven't checked the mailing list in a while. 
>
> I have a 5470 service tag # 5V2GBG2 
> You may see the full original config here 
> <https://www.dell.com/support/home/en-us/product-support/servicetag/0-dHBZdFAzUVN4THRPN0NkTzFYWlNWdz090/overview>
> . 
>
> Basically it came stock with a quad core i7-6820HQ. Sata drive with the 
> tiny sata cable. No m.2 bracket or SSD installed to the NVME ngff slot. 
> Nothing installed on the wwan ngff slot, and intel's wifi card installed to 
> the ngff wireless slot. 
>
> It has 3 ngff slots (M.2 NVME, WIFI, WWAN) keyed differently (Key A, B 
> etc) and the sata data+power cable for 1 sata drive.
>
> I've upgraded ram to 2x8GB DDR4, removed the stock sata hdd and replaced 
> it with a sata ssd. Since I needed more capacity than performance, I got a 
> 512GB Crucial BX500. It was way more affordable than an nvme drive atm, and 
> I didn't have the m.2 bracket either, which would mean I would only be able 
> to secure the nvme ssd with double sided tape or other improvised solution. 
> The BX500 is known to have an exploitable hardware encryption, so be 
> advised to use only software encryption on that drive.
>
> That drive became my Windows 10 drive, GPT / UEFI enabled.
> Started using Qubes on a USB 3.0 64GB flash drive, it worked pretty well 
> considering the constraints, but decided I needed a drive for Qubes itself.
>
> After some deep research I discovered that the WWAN slot indeed takes a 
> SATA M.2 SSD. (source 
> <http://forum.notebookreview.com/threads/new-latitude-5470.785426/page-9#post-10227440>
> ).
> You'd better go for the shorter ones, otherwise they'll collide with the 
> inner plastic frame and won't fit. I believe you can fit 32 and 40mm length 
> drives without any trouble.  I couldn't find an affordable SATA M.2 with at 
> least 256GB for Qubes (that was my personal need), so I ended up getting a 
> regular 80mm lenght one. To make it fit, I had to "mod" the inner plastic 
> frame, and disassemble 50% of the laptop.  I opted simply to break pieces 
> of the plastic frame in order to free space for the lengthier drive. Then, 
> I isolated the surroundings with tape and secured the ssd (don't remember 
> how, if I was able to bolt it in, tape it, or pressure). The SSD I used in 
> the WWAN port is https://www.lexar.com/portfolio_page/ssd-nm100/ 256GB 
> version
>
> You have to change BIOS settings under drive configuration to enable the 
> required sata ports. 
>
> Initialized that drive as GPT, and installed Qubes to it.
>
> You are right regarding the "dual boot". I don't have Grub. I use the 
> "BIOS" UEFI bootmanager to choose which OS I'd like to boot. All I have to 
> do is press F12 after powering up. I've renamed Qubes to Recovery, so it is 
> inconspicuous. Default boot drive is the BX500 with windows. 
>
> The level of compatibility of the E5470 with Qubes is outstanding. The 
> performance is incredible.
> The only thing that didn't work OOB was the SD card reader, which was 
> easily fixed by opting to  kernel-latest . Docking station works 100%, with 
> multiple monitors. Even 2 monitors + laptop monitor works perfectly. I wish 
> it was possible to nuke Intel ME on 6th gen laptops and have it fully 
> Opensource. It would make a great candidate for certification.
>
> My only concern right now is the decisions for the GUI of Qubes 4.1. I 
> wonder if the separation of the GUI and dom0 would result in 
> incompatibility with E5470 or even a big decrease in performance. This 
> thing is perfect for Qubes if your threat model isn't government agencies 
> high.
>
> Hope I could help, and let me know if you have further questions.
> Em quarta-feira, 6 de maio de 2020 20:51:29 UTC-3, [email protected] 
> escreveu:
>>
>> Hi Rafael
>>
>> Interested to see you got an SSD drive to work in the WWAN slot in your 
>> E5470. Could you tell me what drive you used, and the spec for your laptop. 
>> Am I right in thinking that you have Windows installed on one drive and 
>> Qubes on the other, and that you actually choose which drive to boot from 
>> at power up? So it's not "dual-boot" in the usual sense (ie multiple OSs on 
>> the same drive)?
>>
>> Thanks
>>
>
Hi Rafael

Very many thanks for your comprehensive reply, lots of good information 
there.  What I hope to end up with is pretty similar to what you have - a 
large(ish) drive with Windws and Linux Mint in a conventional dual boot 
setup, and a drive in the WWAN slot to run Qubes.  I think it is possible 
to inactivate drives individually on Dell laptops so if I feel it necessary 
I could switch off the W/LM drive when using Qubes and vice versa.  I think 
this would largely get around the potential risk of the Qubes /boot 
partition getting compromised when using one of the other OSs?  Depends how 
paranoid I feel!

Regarding choice of laptop, I am torn between the E5470 and the M4800.  I 
now know that the E5470 will work, but I do like the bigger screen (would 
FHD, not QHD) and the separate number pad on the M4800; I also like the 
number of storage drives it can accomodate. It's a bit of a big old thing, 
but portabity isn't really an issue for me.  Pricewise there's not much in 
it on the Dell Outlet site (UK).

I agree it would be good if the ME could be dealt with on the newer 
machines - maybe someone will find a way...  I'm not up to speed on the 
GUI/dom(0) issue; hopefully Brendan is right that it will be an option, so 
it won't matter.

Thanks again

Andrew

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