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.\" -*- nroff -*-

.TH MDASSEMBLE 8 "" v3.3

.SH NAME

mdassemble \- assemble MD devices

.I aka

Linux Software RAID

.SH SYNOPSIS

.BI mdassemble

.SH DESCRIPTION

.B 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

.B dietlibc,

.B klibc

.B uClibc.

.SH USAGE

Invoking

.B mdassemble

has the same effect as invoking

.B mdadm \-\-assemble \-\-scan.

.PP

Invoking

.B mdassemble

a second time will make all defined arrays readwrite, this is useful if

using the

.B start_ro

module parameter.

.SH OPTIONS

There are no options to

.B mdassemble.

.SH FILES

.SS /etc/mdadm.conf

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

.BR mdadm.conf (5)

for more details.

.B mdassemble

supports all configuration parameters defined in

.B mdadm.conf

with the exception of

.B auto=

which is supported only if mdadm was built with the

.B \-DMDASSEMBLE_AUTO

define.

.SH SEE ALSO

.PP

.BR mdadm (8),

.BR mdadm.conf (5),

.BR md (4),

.BR diet (1).

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