LinuxQuestions.org
Help answer threads with 0 replies.
Home Forums Tutorials Articles Register
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware > Linux - Embedded & Single-board computer
User Name
Password
Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

Notices


Reply
  Search this Thread
Old 02-08-2019, 06:52 AM   #1
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Rep: Reputation: Disabled
Please suggest completely open source ARM board with 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.
 
Old 02-08-2019, 08:43 AM   #2
business_kid
LQ Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware, Slarm64 & Android
Posts: 16,289

Rep: Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322
You're designing, you should know what you want. Why ask us?
You don't have to go beyond Ebay. What's wrong with the various RasPi models?
 
Old 02-08-2019, 11:09 AM   #3
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by business_kid View Post
You're designing, you should know what you want. Why ask us?
You don't have to go beyond Ebay. What's wrong with the various RasPi models?
Asking because I am a newbie in ARM field.

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

I need a hardware and software 100% free of active BLOBs without source code.

Someone thinks that Allwinner, STM32, LPC and OMAP can boot 100% free of BLOBs, is it correct?
 
Old 02-09-2019, 08:59 AM   #4
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
Please suggest a netbook (tablet with a keyboard)

Cortex A7 preferably AllWinner A20/A23/A31/A33

Thank you very much for your help!
 
Old 02-09-2019, 09:23 AM   #5
ondoho
LQ Addict
 
Registered: Dec 2013
Posts: 19,872
Blog Entries: 12

Rep: Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053
Quote:
Originally Posted by romankqsok View Post
Please suggest a netbook (tablet with a keyboard)
Cortex A7 preferably AllWinner A20/A23/A31/A33
that's a different question.
don't confuse us!

Quote:
Originally Posted by romankqsok View Post
I do NOT need multimedia like sound, 3D video, etc.
this should make it much easier to find something.

Quote:
Originally Posted by romankqsok View Post
Raspberry seems requires a blob to boot which is bad from security point of view.
what is this blob you are refering to?
 
Old 02-09-2019, 11:15 AM   #6
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by ondoho View Post

what is this blob you are refering to?
https://wiki.debian.org/RaspberryPi
 
Old 02-09-2019, 12:40 PM   #7
business_kid
LQ Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware, Slarm64 & Android
Posts: 16,289

Rep: Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322Reputation: 2322
Code:
Please suggest a netbook (tablet with a keyboard)
Cortex A7 preferably AllWinner A20/A23/A31/A33
Thank you very much for your help!
Why ask for help if you know what you want? The choice is made. Mark this solved.
 
Old 02-09-2019, 01:01 PM   #8
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
Well, actually I was not able to find any Netbook with integrated keyboard having CortexA7 CPU.

There are a lot of CortexA7 tablets without a keyboard, but I am not sure if it is possible to boot them into general Linux without original Android kernel and without any blobs.

I need just a text mode or a slow X11 without 3D.

But I am not sure even a frame-buffer driver works without blobs with a distro kernel like armbian.

Do you know any manual how to boot Linux or BSD on a popular keyboardless tablet with AllWinner CPU?
 
Old 02-09-2019, 02:09 PM   #9
ondoho
LQ Addict
 
Registered: Dec 2013
Posts: 19,872
Blog Entries: 12

Rep: Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053Reputation: 6053
Quote:
Originally Posted by romankqsok View Post
i know what a raspberry pi is.
i was asking what blob you were refering to.
nevermind.
 
Old 02-09-2019, 02:37 PM   #10
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
Quote:
Originally Posted by ondoho View Post
i know what a raspberry pi is.
i was asking what blob you were refering to.
nevermind.
From my link above:

Quote:
Binary blob needed to boot
The binary blob needed to boot the Raspberry Pi can be downloaded using the rpi-update script available from https://raw.githubusercontent.com/He...ter/rpi-update. It can be used with vmdebootstrap to create a bootable SD card image, according to a recipe from Petter Reinholdtsen.

See more information at this independent documentation project based on a combination of static analysis and trial and error on real hardware: https://github.com/hermanhermitage/videocoreiv/

Broadcom publicly released some code, licensed as 3-Clause BSD, to aid the making of an open source GPU driver. The "rpi-open-firmware" effort to replace the VPU firmware blob started in 2016: https://github.com/christinaa/rpi-open-firmware. See more at https://news.ycombinator.com/item?id=11703842 Unfortunately development of rpi-open-firmware is currently stalled.
 
Old 02-09-2019, 02:37 PM   #11
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
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
 
Old 02-09-2019, 10:14 PM   #12
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
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/20190209...om-laptop.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?
 
Old 02-10-2019, 02:56 AM   #13
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
More about CPU backdoors:

https://web.archive.org/web/20190210...86-CPUs-wp.pdf

http://www.freezepage.com/1549787796TGNTNZUTHI

https://www.youtube.com/watch?v=_eSAF_qT_FY
 
Old 02-10-2019, 08:28 AM   #14
onebuck
Moderator
 
Registered: Jan 2005
Location: Central Florida 20 minutes from Disney World
Distribution: Slackware®
Posts: 13,925
Blog Entries: 44

Rep: Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159Reputation: 3159
Moderator Response

Moved: This thread is more suitable in <Linux - Embedded & Single-board computer> and has been moved accordingly to help your thread/question get the exposure it deserves.
 
Old 02-11-2019, 12:28 PM   #15
romankqsok
LQ Newbie
 
Registered: Jan 2019
Posts: 24

Original Poster
Rep: Reputation: Disabled
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.
 
  


Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
NanoPC-T3 Octa-core Cortex A53 Single Board Computer jiatang Linux - Embedded & Single-board computer 5 12-21-2016 03:09 AM
please suggest a board based on the following for learning linux ayyasprings Linux - Embedded & Single-board computer 6 10-18-2016 08:07 AM
LXer: ARM/FPGA hybrid SoC taps Cortex-A53, 14nm process LXer Syndicated Linux News 0 10-30-2013 01:41 AM
Kernel Testing using LTP on Beagle board (ARM based Embedded Dev Board) Rajender.G Linux - Newbie 0 07-27-2011 05:19 AM
LXer: “I’d suggest Linux - but..” - I’d suggest you get a clue, but.. LXer Syndicated Linux News 0 12-10-2007 01:50 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware > Linux - Embedded & Single-board computer

All times are GMT -5. The time now is 01:53 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration