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Thank you for info! I have got it for 100 bucks :)

This is the missing BMC board. I do not believe it is proprietary.

There is a flash chip for "dual boot" (according to the datasheet) on BMC board. I suppose it stores bootloader.

This switch runs onie + netvisor one OS by default. So it has built in onie. I think it is stored on the BMC board i am trying to identify

I have seen an image for Seastone2 on official website. See 40: https://github.com/sonic-net/SONiC/blob/sonic_image_md_update/supported_devices_platforms.md

Do you mean R1156-B0004-02?

Thank you! This is the information i was looking for. So, now I need to identify and get this missing bmc board, does it have any id, labels or references?

You are both awesome! Thanks a lot! ) I found out that this switch uses ONIE + Netvisor ONE operating system developed by Pluribus (now Arista). Since it is an Ericsson-branded Selestica I am sure it is a bare metal switch which can run ONIE + SONIC. As i mentioned before, the switch came...

I have got a switch with no id labels & logos. It had no RAM and boot disk. I would like to get some information about this box and try to restore it with ONIE and SONIC I installed 8GB DDR4 2133 SODIMM and was able to get into the BIOS which says the system runs on Xeon D-1557 CPU. There is...

There is a 4-pin port RS232 port on many late HP drives. Watched on youtube a guy saying they do a lot of job using serial connection

I have heard that it is possible to program VPD and change drive's personality. I have found a lot of reference manuals for big IBM libraries which have some CE Engr Use Only and OEM Use Only Menus.... but seems it as all not really applicable to the drives used in TS3100/3200

Yes. You need a connector, eusb disk and some soldering experience. It is up and running with 7.3.9 fw and n55-m16p module :)

Nexus firmware names disk as" bootflash:", where Ucs firmware - "workspace:"

I expect to get the connector in a few days. Will solder it and test again

You can remove ssd from switch and hook it up to any desktop with linuх, copy anything. I guess nexus image looks for a disk in another slot which is empty. I have successfully converted 6120 to 5010 but 6120 is factory shipped with eusb disk, not ssd.

The problem is that, once booted from Nexus's kickstart it does not initialize ssd disk correctly. If you have an empty disk after installation it means that installation obviously failed at some point.

I replaced original ssd with a clean kingston ssd, booted from kickstart-5.0.3.1.1.1c.1c.bin and got an error saying it can not initialize disk. I suppose that 5548's firmware looking for a eUSB disk the real 5538 have in another slot. 6248 does have that place on motherboard, but without...

Nexus Kickstarter image booted from tftp-server can not format or initialize system disk (32 gb sata ssd is used instead of compact-flash). I tried n5000 4.2.5, 5.0.3, 5.1.3, 5.2.1 kistrater images. And it never worked. Seems like nexus kickstart-environment is looking for different variables...

I have got 6248, replaced internal ssd with new 64gb one as recommended here and never got it running. Given instructions are wrong or incomplete.

No. It doesn't work. The 6248up uses a 32GB SATA flash module, which does not get properly detected by the N5k kickstart environment.