summaryrefslogtreecommitdiffstats
path: root/update-initramfs.8
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--update-initramfs.895
1 files changed, 95 insertions, 0 deletions
diff --git a/update-initramfs.8 b/update-initramfs.8
new file mode 100644
index 0000000..b36fc57
--- /dev/null
+++ b/update-initramfs.8
@@ -0,0 +1,95 @@
+.TH UPDATE-INITRAMFS 8 "2014/10/16" "initramfs\-tools" "System Administration"
+
+.SH NAME
+update\-initramfs \- generate an initramfs image
+
+.SH SYNOPSIS
+.B update\-initramfs
+.RB { \-c | \-d | \-u }
+.RB [ \-k
+.IR version ]
+.RB [ \-v ]
+.RB [ \-b
+.IR directory ]
+.br
+.BR update\-initramfs " " \-h
+.SH DESCRIPTION
+The
+.B update\-initramfs
+script manages your initramfs images on your local box.
+It keeps track of the existing initramfs archives in /boot.
+There are three modes of operation create, update or delete.
+You must at least specify one of those modes.
+
+The initramfs is a gzipped cpio archive.
+At boot time, the kernel unpacks that archive into RAM disk, mounts and
+uses it as initial root file system. All finding of the root device
+happens in this early userspace.
+
+.SH OPTIONS
+.TP
+\fB\-k \fI version
+Set the specific kernel version for whom the initramfs will be generated.
+For example the output of uname \-r for your currently running kernel.
+This argument is optional for update. The default is the latest kernel version.
+
+The use of "all" for the
+.I version
+string specifies that
+.B update\-initramfs
+should operate on all installed kernel versions (with \fB\-c\fR), or
+on all installed kernel versions that already have an initramfs
+(with \fB\-d\fR or \fB\-u\fR).
+
+.TP
+\fB\-c
+This mode creates a new initramfs.
+
+.TP
+\fB\-u
+This mode updates an existing initramfs.
+
+.TP
+\fB\-d
+This mode deletes an existing initramfs.
+
+.TP
+\fB\-v
+This option increases the amount of information you are given during
+the chosen action.
+
+.TP
+\fB\-b \fI directory
+Set an different bootdir for the image creation.
+
+.TP
+\fB\-h\fR, \fB--help\fR
+Print a short help page describing the available options in
+.B update\-initramfs.
+
+.SH EXAMPLES
+
+Update the initramfs of the newest kernel:
+
+.PP
+.B update\-initramfs -u
+
+
+Create the initramfs for a specific kernel:
+
+.PP
+.B update\-initramfs -c -k 2.6.18-1-686
+
+.SH FILES
+/etc/initramfs-tools/update-initramfs.conf
+
+.SH AUTHOR
+The initramfs-tools are written by Maximilian Attems <maks@debian.org>,
+Jeff Bailey <jbailey@raspberryginger.com> and numerous others.
+
+.SH SEE ALSO
+.BR
+.IR initramfs.conf (5),
+.IR initramfs-tools (7),
+.IR mkinitramfs (8),
+.IR lsinitramfs (8).