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by john_alan
Fri Jul 31, 2020 7:16 am
Forum: General discussion
Topic: RPi4 BCM2711 and ARMv8 Crypto Extensions?
Replies: 61
Views: 12530

Re: RPi4 BCM2711 and ARMv8 Crypto Extensions?

W. H. Heydt wrote:
Thu Jul 30, 2020 11:51 pm
john_alan wrote:
Thu Jul 30, 2020 7:56 am
If the next Pi doesn't exhibit them, it will fail.
"Prediction is hard to do, especially about the future" --Neils Bohr.
Cool quote you seem pretty smart.

Not sure if you’ve noticed how important and fundamental cryptography is.
by john_alan
Fri Jul 31, 2020 7:15 am
Forum: General discussion
Topic: RPi4 BCM2711 and ARMv8 Crypto Extensions?
Replies: 61
Views: 12530

Re: RPi4 BCM2711 and ARMv8 Crypto Extensions?

a few other users have found that the gigabit ethernet is heavily crippled by software TLS not being able to keep up but i only see it as being a problem for the small number of people with gigabit internet speeds, anything on lan likely wont have as much crypto on it The stuff I work on is cripple...
by john_alan
Fri Jul 31, 2020 7:14 am
Forum: General discussion
Topic: RPi4 BCM2711 and ARMv8 Crypto Extensions?
Replies: 61
Views: 12530

Re: RPi4 BCM2711 and ARMv8 Crypto Extensions?

These crypto extensions are essential in this day and age. If the next Pi doesn't exhibit them, it will fail. [citation needed] That’s fair. I guess I won’t buy one and neither will anyone else I know that understands the significance of hardware cryptographic instructions. I’m not sure your level ...
by john_alan
Thu Jul 30, 2020 7:56 am
Forum: General discussion
Topic: RPi4 BCM2711 and ARMv8 Crypto Extensions?
Replies: 61
Views: 12530

Re: RPi4 BCM2711 and ARMv8 Crypto Extensions?

These crypto extensions are essential in this day and age.

If the next Pi doesn't exhibit them, it will fail.
by john_alan
Sat Feb 29, 2020 7:52 am
Forum: Troubleshooting
Topic: rpi-eeprom-update on the Pi4 - unusual output?
Replies: 9
Views: 1017

Re: rpi-eeprom-update on the Pi4 - unusual output?

thanks @timg236 - what can I do to get this board to the right version?
by john_alan
Thu Feb 27, 2020 7:06 pm
Forum: Troubleshooting
Topic: rpi-eeprom-update on the Pi4 - unusual output?
Replies: 9
Views: 1017

rpi-eeprom-update on the Pi4 - unusual output?

BCM2711 detected BOOTLOADER: up-to-date CURRENT: Thu Jan 9 18:25:54 UTC 2020 (1578594354) LATEST: Tue Sep 10 10:41:50 UTC 2019 (1568112110) VL805: up-to-date CURRENT: 000137ad LATEST: 000137ad I see the above, running sudo rpi-eeprom-update on my Pi4, why would current be greater than latest? Do I ...
by john_alan
Sat Jan 11, 2020 9:57 am
Forum: Troubleshooting
Topic: Entropy of headless setup
Replies: 6
Views: 655

Re: Entropy of headless setup

Thanks folks sounds good.
by john_alan
Fri Jan 10, 2020 11:27 am
Forum: Troubleshooting
Topic: Entropy of headless setup
Replies: 6
Views: 655

Entropy of headless setup

Is the entropy of a headless raspberry pi setup considered OK despite having no keyboard/mouse, given that the pi boasts a Hardware TRNG?
by john_alan
Fri Jan 03, 2020 12:09 pm
Forum: Troubleshooting
Topic: correct sources.list
Replies: 4
Views: 9890

Re: correct sources.list

Great thanks, so sounds like my Raspbian setup is correct and so is my Debian one...
by john_alan
Fri Jan 03, 2020 11:48 am
Forum: Troubleshooting
Topic: correct sources.list
Replies: 4
Views: 9890

Re: correct sources.list

Thanks, do you know why Debian includes those extra lines?
by john_alan
Fri Jan 03, 2020 11:21 am
Forum: Troubleshooting
Topic: correct sources.list
Replies: 4
Views: 9890

correct sources.list

Hello, on my raspbian installs my src list for apt looks like this: deb http://raspbian.raspberrypi.org/raspbian/ buster main contrib non-free rpi However on my Debian box, it looks like this: ###### Debian Main Repos deb http://deb.debian.org/debian/ stable main contrib non-free deb-src http://deb....
by john_alan
Thu Dec 12, 2019 12:43 pm
Forum: Troubleshooting
Topic: Changing Wifi details without Ethernet
Replies: 1
Views: 184

Re: Changing Wifi details without Ethernet

Got it to work with a new wpa_supplicant in /boot.

Still I wonder why the Pi sucks with 5ghz networks...
by john_alan
Thu Dec 12, 2019 12:28 pm
Forum: Troubleshooting
Topic: Changing Wifi details without Ethernet
Replies: 1
Views: 184

Changing Wifi details without Ethernet

Hi, I have a perfectly good 5ghz network that everything connects to except my Pis. Most of them I have on ethernet, however a new 3a+ I bought is wifi only. Today I made the mistake of specifying two wifi networks like this: network={ ssid = "wifi_5ghz" psk = "passwordOfA" prior...
by john_alan
Mon Dec 09, 2019 2:12 pm
Forum: Beginners
Topic: SSHD config advice
Replies: 1
Views: 438

SSHD config advice

I'm using ssh on my linux box, I want to secure it to be as watertight as possible, only allowing ssh via `ed25519` elliptic curve crypto sigs. I thought I had it setup correctly, disabling password, no PAM, etc. It seemed to be working properly but today I noticed I didn't have an `authorised_keys`...
by john_alan
Mon Dec 09, 2019 1:24 pm
Forum: Troubleshooting
Topic: Weird slow download of rpi-update on a particular Pi
Replies: 1
Views: 231

Weird slow download of rpi-update on a particular Pi

Hi, I have 3 Pi boxes, they all show great download speeds on the browser/in general web use. However, one of them, the Pi4, sees a strange 'dwindling' speed when downloading rpi-update: *** Downloading specific firmware revision (this will take a few minutes) % Total % Received % Xferd Average Spee...
by john_alan
Sun Dec 08, 2019 8:32 am
Forum: Troubleshooting
Topic: Pi4 firmware and teething issues
Replies: 6
Views: 814

Re: Pi4 firmware and teething issues

Not made it to apt yet, but always worthwhile doing sudo apt update sudo apt full-upgrade to get the latest release which gets a lot of stuff, then you can do an rpi-update if you want to try the latest bleeding edge stuff which has the DVFS stuff. Thanks James, So to be on absolute latest, I need ...
by john_alan
Fri Dec 06, 2019 2:35 pm
Forum: Troubleshooting
Topic: rpi-update on 3A+ vs 3B, 4
Replies: 4
Views: 451

Re: rpi-update on 3A+ vs 3B, 4

rpi-update gets the absolute latest and greatest, and has a small risk of regressions. It is only recommended if you know what you need to do to recover the system, or if specifically advised to for some particular issue. Normally you should use "apt update" and "apt full-upgrade&quo...
by john_alan
Fri Dec 06, 2019 2:20 pm
Forum: Troubleshooting
Topic: Pi4 firmware and teething issues
Replies: 6
Views: 814

Pi4 firmware and teething issues

I was reading this : https://www.raspberrypi.org/blog/thermal-testing-raspberry-pi-4/ And I can see the progress being made. Do I still need to manually update the EEPROM and run rpi-update to have these fixes (Raspberry Pi 4 VLI, SDRAM, Clocking, and Load-Step Firmware), or are they inside Apt-get ...
by john_alan
Fri Dec 06, 2019 2:13 pm
Forum: Troubleshooting
Topic: rpi-update on 3A+ vs 3B, 4
Replies: 4
Views: 451

rpi-update on 3A+ vs 3B, 4

Hello, I'm playing with the latest Kernel and noticed that on my 3B and 4, the rpi-update tool updates to: 4.19.86-v7l+ However, on my 3A+ (also running latest Raspbian Buster) it states: *** Your firmware is already up to date However, the 3A+ is only running `4.19.75-v7+' Any ideas? I could have s...
by john_alan
Tue Dec 03, 2019 12:21 pm
Forum: Beginners
Topic: Is there an elegant way to move from a 16GB SD card to a 200GB card?
Replies: 10
Views: 891

Re: Is there an elegant way to move from a 16GB SD card to a 200GB card?

I bought a new SD card on Black Friday. Currently I'm working on a 16GB card, if I use DD can I simply clone this 16GB image onto the 200GB card and simply swap them out? Will latest Raspbian resize the partition automatically? Thanks! Raspbian Buster with Desktop has SD Card Copier for just this s...
by john_alan
Tue Dec 03, 2019 12:20 pm
Forum: Beginners
Topic: Is there an elegant way to move from a 16GB SD card to a 200GB card?
Replies: 10
Views: 891

Re: Is there an elegant way to move from a 16GB SD card to a 200GB card?

@procount,

I think this looks real, what you rec?

It's showing 200GB exFat, looks real physically and these are test speeds:

Image
by john_alan
Tue Dec 03, 2019 12:05 pm
Forum: Beginners
Topic: Is there an elegant way to move from a 16GB SD card to a 200GB card?
Replies: 10
Views: 891

Re: Is there an elegant way to move from a 16GB SD card to a 200GB card?

Step 1 is to check your 200GB SD card is not a fake using h2testw or various other SD card testing tools before you go any further. Hopefully it's a good one, but it will save you a lot of grief to confirm this first. Once confirmed, the easiest way to copy your 16GB card is to use the SD Card Copi...
by john_alan
Tue Dec 03, 2019 10:55 am
Forum: Beginners
Topic: Is there an elegant way to move from a 16GB SD card to a 200GB card?
Replies: 10
Views: 891

Is there an elegant way to move from a 16GB SD card to a 200GB card?

I bought a new SD card on Black Friday.

Currently I'm working on a 16GB card, if I use DD can I simply clone this 16GB image onto the 200GB card and simply swap them out?

Will latest Raspbian resize the partition automatically?

Thanks!
by john_alan
Tue Dec 03, 2019 10:18 am
Forum: Troubleshooting
Topic: Pi keeps falling over and I don't know why
Replies: 10
Views: 1421

Re: Pi keeps falling over and I don't know why

I already had a 2.4ghz and 5ghz network each, with unique SSIDs, however... In the end this issue was caused by my Virgin Media "SuperHub 3.0" router with it's dynamic wifi channel switching. I disabled it about 11 days ago and not a blip of an issue since. This also explains why it occurr...
by john_alan
Wed Nov 20, 2019 11:59 am
Forum: Troubleshooting
Topic: Pi keeps falling over and I don't know why
Replies: 10
Views: 1421

Re: Pi keeps falling over and I don't know why

The 3 just keeps losing it's network connection. I might try moving it to be wired. Check your router, my router from time to time disables the 2.4Ghz band for no reason. Make sure the 2.4Ghz band has a different name to the 5Ghz band good idea, I just had a thought, could this issue be caused by a...

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