High level summary: I have a given physical set-up that works fine using a Zero W. I swap out the Zero W and swap in a Zero 2 W, but using the micro SD card from the Zero W. The Zero2W doesn't boot, although the green light comes on, and it doesn't post anything to the screen (although my monitor seems to know something's connected - it's not dead black.)
More detail: this is a 320GB Hitachi hard drive in a WDLabs blue/purple vertical case (the last one discussed in this video: https://www.youtube.com/watch?v=jO5trraak7I, and shown in my pictures below. The pi 's boot and root are on the SD card, the hard drive appears in /etc/fstab and just holds data. I'm using an official pi4 power supply, with a micro-usb to usb-c adapter. This is Bookworm 32-bit Lite on the card from the Zero W, fully and recently upgraded. Both of these pi's were newly re-imaged last fall for bookworm, and kept fully upgraded.
Side note: when using the ZeroW, I can plug the power into the usual power socket, or into the micro-usb lead that feeds out from the squid that's plugged into the usual data socket; both work. When using the Zero2W, it doesn't work either way.
One thought was that the kernel or firmware on that micro SD card from the ZeroW is somehow not right or sufficient for the Zero2W, but I think it actually should be OK. That card from the ZeroW has the only the V6 and V8 kernels and their associated files; I've deleted the rest so upgrades go faster, but I deliberately left the V8 because i habitually move my SD cards to a pi4 to do backups faster there, and this card from the ZeroW works fine there; I think if a card works fine in a pi4, it should work in a Zero2W?? . (For what it's worth, the card from the Zero2W, which isn't in play here, just has the V8 kernel, and also gets backed up when running in a pi4.)
Another thought: that somehow that particular cable bundle and the ZeroW feeds enough power to the HD, but with the Zero2W the sockets or limits are different, and it doesn't??
I would appreciate any suggestions on how to debug this...
More detail: this is a 320GB Hitachi hard drive in a WDLabs blue/purple vertical case (the last one discussed in this video: https://www.youtube.com/watch?v=jO5trraak7I, and shown in my pictures below.
Side note: when using the ZeroW, I can plug the power into the usual power socket, or into the micro-usb lead that feeds out from the squid that's plugged into the usual data socket; both work. When using the Zero2W, it doesn't work either way.
One thought was that the kernel or firmware on that micro SD card from the ZeroW is somehow not right or sufficient for the Zero2W, but I think it actually should be OK. That card from the ZeroW has the only the V6 and V8 kernels and their associated files; I've deleted the rest so upgrades go faster, but I deliberately left the V8 because i habitually move my SD cards to a pi4 to do backups faster there, and this card from the ZeroW works fine there; I think if a card works fine in a pi4, it should work in a Zero2W?? . (For what it's worth, the card from the Zero2W, which isn't in play here, just has the V8 kernel, and also gets backed up when running in a pi4.)
Another thought: that somehow that particular cable bundle and the ZeroW feeds enough power to the HD, but with the Zero2W the sockets or limits are different, and it doesn't??
I would appreciate any suggestions on how to debug this...
Statistics: Posted by tinker2much — Fri Mar 01, 2024 7:35 pm — Replies 7 — Views 98