Thankyou for the feedback Symm, some updates are warranted I think!
- I am installing onto a 4Gb USB pen , "FAT" filesystem (Fat16) with the default chunk size. A friend of mine who uses OpenE from a USB pen uses a 2Gb drive, and when you do an openE install to a HDD it creates a 2Gb partition. I wondered if this was significant.
- Initially, I powered down the machine, then removed the disk. It was not a "hot" removal. OpenE then failed to boot up, when you would _expect_ it to boot up, but to indicate that the affected array was now in degraded mode. However, it crashed on boot with an Unknown Operand error. Had that been a real scenario, with a disk losing power or plain old dying outright, I would have been locked out of my storage server and in a right mess! Lucky for me that I discovered this in testing, not in deployment.
- Installing to a HDD has been so far successful, with the system booting up with 1 disk removed from a 4-disk array. This leads me toward there being a problem with either the USB pen in use, the machine's USB bus, or the fact that I'm using a 4Gb partition on the USB pen instead of 2.
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