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#1 2019-02-08 12:45:03

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Please suggest a completely open source ARM board with Cortex A53/A7

It should boot into Linux or BSD WITHOUT any single BLOB
and following ports should work: USB, SATA, Ethernet, any display
PCI port if present would be desirable too

I do NOT need multimedia like sound, 3D video, etc.

It is a security console for remote administration of servers via SSH and VNC.

Only for work, not for games.

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#2 2019-02-08 17:14:10

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

Raspberry seems requires a BLOB to boot which is bad from security point of view.

I need a hardware 100% free of active BLOBs which are missing public source code.

Someone thinks that Allwinner, STM32, LPC and OMAP can boot 100% free of BLOBs, is it correct?

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#3 2019-02-09 10:06:36

yeti
Member
Registered: 2017-02-23
Posts: 105  

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#4 2019-02-09 15:00:52

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

Please suggest a netbook (tablet with a keyboard)

Cortex A7 preferably AllWinner A20/A23/A31/A33

Thank you very much for your help!

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#5 2019-02-09 15:11:12

yeti
Member
Registered: 2017-02-23
Posts: 105  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

alupoj wrote:

Please suggest a netbook (tablet with a keyboard)

Oh yes!
An ARMish tablet/netbook is missing in my collection too!
I'd prefer long runtime per charge over computing power.

I confess not having tried Devuan on my Nokia N900 yet and am dreaming of at least 5"..7" because the N900 (3½") is far too tiny for these old eyes.

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#6 2019-02-10 04:04:25

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

Please note a few features of a laptop/tablet I am looking for:

1) Spectre free CPU with "in order" execution and not very modern to avoid backdoors like Cortex A7.
2) Open source drivers in a Linux mainline like for AllWinner A20 realization.
3) Able to boot into FreeBSD/OpenBSD
4) May be it can be a custom made laptop from Olimex Olinuxino A20 like this:
https://wot.lv/my-take-on-a-custom-laptop.html
5) USB port able to connect to USB hub with several devices like external USB keyboard, mouse, HDD, etc.
6) BLOB free boot to avoid hardware trojans managing ARM worlds in TrusZone

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#7 2019-02-10 04:19:00

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

So I think I have to make a custom Laptop based on a CortexA7 AllWinner board compatible with OpenBSD.

You can see an example of such DIY:

https://web.archive.org/web/20190209180 … aptop.html

They use a special adapter to convert a general Thinkpad Keyboard to USB channel.

I think such adapter can be found in different Android ARM based smartbooks (not sure about Windows Atom smartbooks). Does anyone know which smartbook have a USB keyboard which could be reused in a custom made Laptop?

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#8 2019-02-10 08:55:38

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

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#9 2019-02-11 18:27:05

alupoj
Member
Registered: 2019-01-25
Posts: 14  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

What do you think about how secure is MIPS hardware of a router like WNDR3800 with 128Mb RAM?

This router can boot into fully free open source LibreCMC.

It can be managed from text terminal via SSH or serial console.

Can I add SWAP on LibreCMC located on a USB flash by swapon command?

Can I then chroot from LibreCMC into another distro like Debian v8/v9 located on a USB flash drive?
Only text mode is needed, NO graphical desktop is needed.

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#10 2019-02-11 18:32:26

yeti
Member
Registered: 2017-02-23
Posts: 105  

Re: Please suggest a completely open source ARM board with Cortex A53/A7

alupoj wrote:

Can I then chroot from LibreCMC into another distro like Debian v8/v9 located on a USB flash drive?
Only text mode is needed, NO graphical desktop is needed.

I don't know LibreCMC but it smells a bit like OpenWrt.
Search for "kexec" which would even allow booting a different kernel from an already running one: https://openwrt.org/docs/guide-user/advanced/kexec

Last edited by yeti (2019-02-11 18:32:44)

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