2011-07-10 00:02:10 +02:00
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.TH UPDATE-INITRAMFS 8 "2011/07/09" "Linux" "update\-initramfs manual"
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2009-10-09 03:11:09 +02:00
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.SH NAME
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update\-initramfs \- generate an initramfs image
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.SH SYNOPSIS
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.B update\-initramfs
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.RB \-c | \-d | \-u
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.RB [ \-k
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.IR version ]
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.RB [ \-t ]
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.RB [ \-v ]
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2010-02-25 04:07:57 +01:00
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.RB [ \-V ]
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2009-10-09 03:11:09 +02:00
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.RB [ \-b ]
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.RB [ \-h ]
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.SH DESCRIPTION
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The
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.B update\-initramfs
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script manages your initramfs images on your local box.
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It keeps track of the existing initramfs archives in /boot.
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There are three modes of operation create, update or delete.
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You must at least specify one of those modes.
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The initramfs is a gzipped cpio archive.
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At boot time, the kernel unpacks that archive into RAM disk, mounts and
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uses it as initial root file system. All finding of the root device
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happens in this early userspace.
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.SH OPTIONS
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.TP
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\fB \-k \fI version
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Set the specific kernel version for whom the initramfs will be generated.
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For example the output of uname \-r for your currently running kernel.
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This argument is optional for update. The default is the latest kernel version.
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The use of "all" for the
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.I version
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string specifies
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.B update\-initramfs
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to execute the chosen action for all kernel versions, that are already known
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to
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.B update\-initramfs.
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.TP
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\fB \-c
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This mode creates a new initramfs.
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.TP
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\fB \-u
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This mode updates an existing initramfs.
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.TP
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\fB \-d
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This mode removes an existing initramfs.
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.TP
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\fB \-t
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Allows to take over an custom initramfs with a newer one.
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.TP
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\fB \-v
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This option increases the amount of information you are given during
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the chosen action.
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2010-02-25 04:07:57 +01:00
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.TP
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\fB \-V
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Prints the current initramfs-tools version.
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2009-10-09 03:11:09 +02:00
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.TP
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\fB \-b
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Set an different bootdir for the image creation.
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.TP
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\fB \-h
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Print a short help page describing the available options in
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.B update\-initramfs.
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.SH EXAMPLES
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Update the initramfs of the newest kernel:
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.PP
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.B update\-initramfs -u
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Create the initramfs for a specific kernel:
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.PP
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.B update\-initramfs -c -k 2.6.18-1-686
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.SH FILES
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/etc/initramfs-tools/update-initramfs.conf
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.SH AUTHOR
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2011-07-17 01:19:36 +02:00
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The initramfs-tools from Void GNU/Linux are maintained by
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2010-02-25 04:07:57 +01:00
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Juan Romero Pardines <xtraeme@gmail.com>, they diverged substantially
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2011-07-10 00:02:10 +02:00
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from the original implementation coming from Debian.
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2010-02-25 04:07:57 +01:00
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The initramfs-tools from Debian are written by Maximilian Attems <maks@debian.org>,
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2009-10-09 03:11:09 +02:00
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Jeff Bailey <jbailey@raspberryginger.com> and numerous others.
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.SH SEE ALSO
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.BR
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.IR initramfs.conf (5),
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.IR initramfs-tools (8),
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.IR mkinitramfs (8).
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