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raspberrypi / Raspberry-Pi-OS-64bit

Repository for containing issues on the 64 bit operating system (as distinct from the 32 bit one)
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request_module modprobe binfmt-464c cannot be processed #112

Closed SargonofAssyria closed 2 years ago

SargonofAssyria commented 4 years ago

I installed in on a SD-card and it works fine. I have several Raspberry Pi's running from a LUN on my Synology. I want to do the same with the 64 bit OS. In the SD-card boot environment I can mount the LUN without a problem. When I try to boot via the SD-card from the LUN is gets into a loop with the above message, which after a view tries fails and then it tries to start /sbin/init but that fails too. Eventually the Raspberry Pi crashes.

pelwell commented 4 years ago

From https://www.cyber-mage.com/2016/05/06/linux-request_module-runaway-loop-modprobe-binfmt-464c/:

Reason: This usually means you are trying to boot using a 32bit kernel but your installation is 64bit or viceversa.

If you boot a 32-bit kernel with a 64-bit OS, when the kernel tries to start /sbin/init (a 64-bit binary), it won’t recognize the binary format, and it’ll try to load the binfmt-464c kernel module, which is ELF support. (ELF support is generally compiled into the kernel, not built as a module, by the way.)

SargonofAssyria commented 4 years ago

I did put the official beta image from raspbian on the SD-card. Nothing more, nothing less. So where is the 32-bit kernel with a 64-bit OS of visa versa come from? I only create a initrd.img from the system on the SD-card. Should I do something extra to include or exclude something from the initrd.img? B.t.w. I already did read the info from the link (4 years old) but that info did not provide a solution.

lzto commented 2 years ago

I think this might be related to endianness -- the endianness might be messed up when using LUN if incoming network data is big endianness but kernel is expecting little endianness, this might happen.

This is one possibility but I cannot say for sure this is your case.

Can you provide more information on your setup including boot command etc?

Thanks!

SargonofAssyria commented 2 years ago

In the meantime I have it running. Forgot to close the issue. It is more then 1,5 years ago. Don't know anymore what the solution was.