mdassemble - assemble MD devices aka Linux Software Raid.
mdassemble is a tiny program that can be used to assemble MD devices inside an initial ramdisk (initrd) or initramfs, it is meant to replace the in-kernel automatic raid detection and activation. It can be built statically and linked against lightweight libc alternatives, like dietlibc, klibc or uClibc.
Invoking mdassemble has the same effect as invoking mdadm --assemble --scan.
There are no options to mdassemble.
The config file lists which devices may be scanned to see if they contain MD super block, and gives identifying information (e.g. UUID) about known MD arrays. See mdadm.conf(5) for more details.
mdassemble supports all configuration parameters defined in mdadm.conf with the exception of auto= which is supported only if mdadm was built with the -DMDASSEMBLE_AUTO define.
mdadm(8), mdadm.conf(5), md(4).