OK, I changed the cmdline.txt to specify the USB UUID instead of
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the SD
card inserted, and the root filesystem will not expand?
There is something very flaky about all this USB boot.
On Wed, 18 Oct 2023 19:48:32 +0100, The Natural Philosopher <tnp@invalid.invalid> wrote:
OK, I changed the cmdline.txt to specify the USB UUID instead of
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the SD
card inserted, and the root filesystem will not expand?
There is something very flaky about all this USB boot.
Maybe you have one of the old Raspberry 4 models? https://www.pragmaticlinux.com/2021/12/directly-boot-your-raspberry-pi-4-from-a-usb-drive/
OK, I changed the cmdline.txt to specify the USB UUID instead of
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the SD
card inserted, and the root filesystem will not expand?
There is something very flaky about all this USB boot.
On 18/10/2023 7:48 pm, The Natural Philosopher wrote:All SATA /SSD adapters are not created equal
OK, I changed the cmdline.txt to specify the USB UUID instead ofProbably not relevant but I've just spent the best part of an afternoon trying to get a 2Gb Pi4 to boot from an SSD via a USB3 (allegedly) to
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the SD
card inserted, and the root filesystem will not expand?
There is something very flaky about all this USB boot.
SSD adaptor.
To save time I decided to use Raspberry Pi Imager (on a Mint desktop) to
burn the image. It didn't work (write failure). I moved the SSD adaptor
to a USB-2 port and it worked.
If I plug the resulting combination into a USB-3 slot on the Pi 4 it
boots perfectly.
I think the adaptor works on the Pi USB-3 because the Pi 4 doesn't have
true USB-3 data rates. I haven't got a Pi 5 but I suspect the same
approach will not work.
Another Dave
On 18/10/2023 7:48 pm, The Natural Philosopher wrote:
OK, I changed the cmdline.txt to specify the USB UUID instead of
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the SD
card inserted, and the root filesystem will not expand?
There is something very flaky about all this USB boot.
Probably not relevant but I've just spent the best part of an afternoon trying to get a 2Gb Pi4 to boot from an SSD via a USB3 (allegedly) to SSD adaptor.
To save time I decided to use Raspberry Pi Imager (on a Mint desktop) to
burn the image. It didn't work (write failure). I moved the SSD adaptor to
a USB-2 port and it worked.
If I plug the resulting combination into a USB-3 slot on the Pi 4 it boots perfectly.
I think the adaptor works on the Pi USB-3 because the Pi 4 doesn't have
true USB-3 data rates. I haven't got a Pi 5 but I suspect the same
approach will not work.
In message <uh04p7$1ln8m$1@dont-email.me>
Another Dave <dmarsden@nospam.com> wrote:
On 18/10/2023 7:48 pm, The Natural Philosopher wrote:
OK, I changed the cmdline.txt to specify the USB UUID instead ofProbably not relevant but I've just spent the best part of an afternoon
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the SD
card inserted, and the root filesystem will not expand?
There is something very flaky about all this USB boot.
trying to get a 2Gb Pi4 to boot from an SSD via a USB3 (allegedly) to SSD >> adaptor.
To save time I decided to use Raspberry Pi Imager (on a Mint desktop) to
burn the image. It didn't work (write failure). I moved the SSD adaptor to >> a USB-2 port and it worked.
If I plug the resulting combination into a USB-3 slot on the Pi 4 it boots >> perfectly.
I think the adaptor works on the Pi USB-3 because the Pi 4 doesn't have
true USB-3 data rates. I haven't got a Pi 5 but I suspect the same
approach will not work.
The symptoms you describe would also fit perfectly with a power supply
issue. Because of power limiting at USB ports, voltages at the USB
devices can be marginal. This shows up most often with relatively
high consumers of power, like storage drives.
David
On 21/10/2023 10:14, Another Dave wrote:
On 18/10/2023 7:48 pm, The Natural Philosopher wrote:
OK, I changed the cmdline.txt to specify the USB UUID instead of
PARTUUID and it seems to have partially booted correctly in that the
right partitions end up mounted, but it STILL wont boot without the
SD card inserted, and the root filesystem will not expand?
What does lsusb show about the adapter?
PS Id I had known that a Pi4B would boot USB *by default* (if no SD card
is installed) I wouldn't have faffed around with the SD card..
Sysop: | Weed Hopper |
---|---|
Location: | Clearwater, FL |
Users: | 14 |
Nodes: | 6 (0 / 6) |
Uptime: | 231:45:47 |
Calls: | 55 |
Calls today: | 1 |
Files: | 50,127 |
D/L today: |
34 files (4,425K bytes) |
Messages: | 275,362 |