PI Strange behaviour

[beatsal]

My PI was working fine and then started acting funny - first the mouse was unresponsive, then I turned off power when I turned on power, got a dark screen which said HDMI and then started scrolling saying:
1653741 Task Dump for CPU3
2186511 kworker/U8:2 D 0 92 0 0x00000000.
(The numbers on the left keep changing - maybe time). This scrolling carries on non-stop)

[DougieLawson]

Get a new, factory fresh, SDCard and a USB SDCard reader.

Build a copy of Raspbian on the new SDCard. Boot your RPi from that. Mount your unbootable SDCard in the USB reader, mount the reader in your RPi.

You can then look at /var/log on the "broken" SDCard to see if you can determine what's gone wrong. You can rescue valuable data from that card, if necessary. You should then have a reasonable clue what's gone wrong.

[beatsal]

Thanks Dougie.
Today Sunday all closed; but do not want to wait till tomorrow (MAY HAVE TO EVENTUALLY).
I get the msg "Fixing recursive fault but reboot is needed!"
Not sure how to reboot. Would like to reboot and see.

[beatsal]

Not done this before so do not understand:
``Get a new, factory fresh, SDCard and a USB SDCard reader.

Build a copy of Raspbian on the new SDCard. Boot your RPi from that. Mount your unbootable SDCard in the USB reader, mount the reader in your RPi.``

Since there are different types of SD card, which card should I get. I think a micro SD card but may be there are other factors i.e. speed, capacity etc. Put the SD card in my laptop and program or in the PI and program. What is the link to d`load from.
Thanks for your patience

[B.Goode]

See the section Get Started on this page on the Raspberry Pi Foundation documentation website: https://www.raspberrypi.org/help/

[beatsal]

Thanks. Tried it. Does not give specs of SD card req`d. Also tried extracting the raspbian-stretch.img file but it does not say where it is extracted - tried to find extracted file for an hour hour but still stuck

[gkaiseril]

Look at using etcher. You do not need to unzip the download.

[beatsal]

I d`load the zip file 2017-09-07-raspbian-stretch.img and when I extract and open, it says file corrupted.
Is there any link I can d`load from without these problems. What is etcher and how would it help

[rpdom]

Etcher is the recommended software to write the Raspbian image file to an SD card. It works on Windows, Mac and Linux on a PC. https://etcher.io
It will decompress and write the image in one operation and verify that it is written correctly.

Did you check the md5 checksum of the zipped file after you downloaded it?

[steveb4pi]

These days, a corrupted SD card is actually quite rare .. unless your app. is performing millions of write operations on the SD card that is

SD cards have a 'write lifetime limit' yes, that's millions of writes, but with 'modern' Pi system software using the Windows trick of 'virtual memory' it's amazing how fast a SD card can be 'worn out' ...

NB. On a PC, Etcher (32bit) only works on Win 7 and above, which is why many of us still use Win32 Disk Imager
(what's the point of building a 32bit app. when it's limited to Win 7 ??? = you might as well make it 64bit only)

Since there are still more XP users (5.69%) than any flavour of Mac (OS X, 3.84%) or Linux (3.04%) I'm guessing the developers have 'bought into' the Microsoft story ...
( see https://www.netmarketshare.com/operatin ... pcustomd=0 )

[rpdom]

On a PC, Etcher (32bit) only works on Win 7 and above (whats the point of a 32bit app. when it's limited to Win 7 ???),. which is why many of use still use Win32 Disk Imager.

Time to upgrade to a modern OS?

[DougieLawson]

Did you check the md5 sha256 checksum of the zipped file after you downloaded it?

FTFY

[rpdom]

Did you check the md5 sha256 checksum of the zipped file after you downloaded it?

FTFY

Yeah, that one. I couldn't be bothered to check.

[beatsal]

Thanks, your suggestions worked. Got a micro SD and d'loaded using Etcher, now the PI starts up and I get the 2 white lines. Now, cannot connect from the desktop with VNC. My desktop IP is 192.168.0.11. I tried 192.168.0.12-----.16 no luck! How to get the IP address of PI so I can connect to it?

[B.Goode]

I get the 2 white lines. Now, cannot connect from the desktop with VNC. My desktop IP is 192.168.0.11. I tried 192.168.0.12-----.16 no luck! How to get the IP address of PI so I can connect to it?

You mean the default Raspbian Desktop background image of a road going off into the distance?



From a shell (command-line) prompt, eg by using the Terminal [ >_ ] icon on the top menu bar, use

Code: Select all

ip addr
Or
ifconfig

If you don't have access to the Raspbian Desktop, examine the pool of addresses assigned by your router.

Or scan your network with a tool such as Fing on a pc or tablet on the same network.

[beatsal]

Thanks. Tried, when i type ip addr, i getsyntax error near unexpected token 'ip'
when i type ipconfig, i get bash: ipconfig: command not found
i did get the ip address as 192.168.0.10 from typing 192.168.0.1but when i type it in vnc, it does not connect

[rpdom]

Thanks. Tried, when i type ip addr, i getsyntax error near unexpected token 'ip'
when i type ipconfig, i get bash: ipconfig: command not found
i did get the ip address as 192.168.0.10 from typing 192.168.0.1but when i type it in vnc, it does not connect

That's ifconfig not ipconfig. ipconfig is a Windows command.

[beatsal]

yes, it did give me 192.168.0.10 as the ip for my PI BUT WHEN i TYPE it in VNC, no luck does not connect, get error 'connection was refused by the computer'

[B.Goode]

What steps have you taken to configure and enable vnc on your RPi?

Raspberry Pi Foundation documentation here: https://www.raspberrypi.org/documentati ... /README.md

[jahboater]

yes, it did give me 192.168.0.10 as the ip for my PI BUT WHEN i TYPE it in VNC, no luck does not connect, get error 'connection was refused by the computer'

Have you enabled VNC ?

sudo raspi-config

then "Interfacing Options"

[beatsal]

Thanks a lot - works now!

[beatsal]

Look at using etcher. You do not need to unzip the download.

You had mentioned the above i.e. no need to unzip.
The getting started section says to unzip. So not sure.

[jahboater]

Look at using etcher. You do not need to unzip the download.

You had mentioned the above i.e. no need to unzip.
The getting started section says to unzip. So not sure.

Please follow the instructions here
https://www.raspberrypi.org/documentati ... /README.md
They do not say to unzip ...

Etcher is a graphical SD card writing tool that works on Mac OS, Linux and Windows, and is the easiest option for most users. Etcher also supports writing images directly from the zip file, without any unzipping required. To write your image with Etcher:

[beatsal]

Thanks. Sorry for my misunderstanding.

[beatsal]

Mount your unbootable SDCard in the USB reader, mount the reader in your RPi.

Not sure about USB reader as to where it is.