Install new SSD in switch.
prepare usb with rufus using onie-recovery-x86_64-mlnx_x86-r0.iso (BIOS)
boot switch and load bios with ctrl b  (PW admin) 
boot usb from far right menu (BIOS, not UEFI)
from Grub, load "ONIE: Embed ONIE"
Switch will reboot. When prompted proceed with "ONIE: Install OS"

When this is done, the switch will continue to try and network / ONIE boot.
this will be trying over and over to automate install.
stop this with "onie-stop"

Place the USB containing "X86_64-3.9.3202-installer.bin" in front usb (w/Mini USB OTG Cable)
locate the /dev/sdX info for usb with blkid
create mount point path with "mkdir /mnt/media"
Mount USB with "mount -t vfat /dev/sdX /mnt/media"
copy bin off of USB to memory with "cp /mnt/media/X86_64-3.9.3202-installer.bin /tmp/"
install the operating system with "onie-nos-install /tmp/X86_64-3.9.3202-installer.bin"
This will take about 10 minutes and have lots of scrolling text. When switch reboots, unplug USB.

Switch will reboot and start initial config.
when prompted "waiting for zero-touch start"
press enter and login with admin/admin
proceed with setup wizard.
Proceed with this assigning an IP address.
You can now update the software package as normal to most current version.

Upgrade version steps:
3.9.3202 --> 3.10.2102
3.10.2102 --> 3.10.4504

(rumor is there will not be any newer versions.)

2025-04-28