You may check these cards:
https://www.techwalla.com/articles/how-to-check-an-sd-card-for-errors
Even new cards can be faulty
nothing untoward found!!
I believe I have now installed octopi on the Pi 4 and it is showing on the router but I cannot log on to it in the web browser.
The IP info is 192.168.0.17 /24
Any ideas?
Are you able to log in via ssh?
No, I am unable to log in from my Mac using the SSH commands shown in many you tube videos and google searches!
I guess there is also no output on hdmi?
We should try another flash tool.
Try it with the raspberry pi imager
Hi there,
I'm a Windows user and had similiar problems with setting up Octoprint on a 64gb and higher SD card, so here's my experience
- I used an alternate imaging software (Windows: Win32 Disk Imager download | SourceForge.net, unfortunately no MAC version, trythe raspberry pi imager suggested)
- after imaging, the SD card will split into 2 partitions, one called BOOT (small capacity), and the rest is on another parition (which on Windows i cannot access).
- as i imaged several SD cards to test, i had a few cards stuck at #2. then i used this formatter SD Memory Card Formatter | SD Association to revert the card to the original state.
not sure if the above helps, but good luck!
I had problems with the balenaEtcher
Hi Victaru,
I have also tried Atom and Notepad++ instead of BalenaEtcher but with same results!
I am stuck with the MAC at the moment but looking to get a Windows run installation soon to see if that works.
Cheers
Kev
Hi PW
I am following your instructions and will update you asap.
thanks
Kev
Sorry, but Atom and Notepad++ are text editors, BalenaEtcher is a flash program.
Sorry my bad, got a bit confused their for a minute. 
I have tried BalenaEtcher and also the Raspberry Pi Imager to flash the cards and the other programs mentioned to edit the supplicant text part.
cheers
Kev
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do you have an ssh.txt file in the root? If no, it won't enable ssh.
OctoPi usually comes with that file.
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Yes I believe that file was in the root
Here is where you went wrong... The file 'ssh', NOT 'ssh.txt', should be in the BOOT partition, NOT the ROOT!
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If you have Raspbian running and want to install OctoPi on your already running Pi, I have a script that works flawlessly on a Pi3, you could try that on your Pi4.
Wow, thanks a lot piadam, I would have been continually struggling with that if you had not told me!
I have not seen any mention of that difference in any YouTube videos or guides on google!!
I will make sure that it is in the boot partition.
What is the extension on this file and how is it created?
Thanks
Kev
I dont have Rasbian running, I just installed it once to confirm the Pi 4 was not at fault. I don't have any other reason to run it really.
Cheers for the help
kev
Hi piadam
I have now checked that the SSH file is in the BOOT partition and it is showing Zero bytes
I have edited the Suplicant file to enable the wifi access.
Saved it and in theory when I install it into the Pi 4 it should expand automatically. However looking on the downside what do I need to do if I cannot log in with SSH from my MacBook Pro or it does not auto expand?
Thanks for your help
Kev
I never worked with a pre-configured supplicant-file, will try that in a moment, will get back on that...
I'm a Mac and Terminal guy that has about 15 Raspberries running, all configured using SSH (YET,... over wired ethernet), so I expect I will be able to get you going soon (as soon as I have figured out how to get it working over WiFi)...
First this:
AFTER you wrote the SD-card on your Mac, reïnsert the SD-card in the Mac. If your Finder-Preferences allow the Finder to show you external-disks then it should show a disk called 'boot', which is the boot-volume of the Pi. You won't see the 2nd partition on the SD-card, which is going to be the Pi's root-partition.
You could also start the Terminal program and do what I did below (the character between the k and the P in the first command is a LOWERCASE L):
~ % df -klP
Filesystem 1024-blocks Used Available Capacity Mounted on
/dev/disk1s5s1 244272536 16318200 74791872 18% /
/dev/disk1s4 244272536 1049644 74791872 2% /System/Volumes/VM
/dev/disk1s2 244272536 1238336 74791872 2% /System/Volumes/Preboot
/dev/disk1s6 244272536 7396 74791872 1% /System/Volumes/Update
/dev/disk1s1 244272536 149614012 74791872 67% /System/Volumes/Data
/dev/disk3 65536 1588 63948 3% /Volumes/RAMDisk
/dev/disk2s2 3906754560 1719757392 2186997168 45% /Volumes/4TP2
/dev/disk4s1 258095 49983 208112 20% /Volumes/boot
~ % ls -la /Volumes/boot/ssh
-rwxrwxrwx 1 adam staff 0 Jun 8 13:53 /Volumes/boot/ssh
[adam@mbookpro 10:58:40] ~ %
Focus on the lines above, that contain the word 'boot'.
Do these line appear on your Mac too? If so: fine, if not: you made a mistake somewhere...
You said the filesystem did not expand, how did you see that when you have no access to your Pi?
The boot-volume will never get expanded on the Pi, it is the root-volumes (/) that will get expanded to the size of your SD-card.
Let me know and meanwhile I will find out about how to preconfigure the WiFi-password stuff.