projects / dragonfly.git / blame
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1 | .\" |
| 2 | .\" Copyright (c) 2010 The DragonFly Project. All rights reserved. | |
| 3 | .\" | |
| 4 | .\" Redistribution and use in source and binary forms, with or without | |
| 5 | .\" modification, are permitted provided that the following conditions | |
| 6 | .\" are met: | |
| 7 | .\" | |
| 8 | .\" 1. Redistributions of source code must retain the above copyright | |
| 9 | .\" notice, this list of conditions and the following disclaimer. | |
| 10 | .\" 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | .\" notice, this list of conditions and the following disclaimer in | |
| 12 | .\" the documentation and/or other materials provided with the | |
| 13 | .\" distribution. | |
| 14 | .\" 3. Neither the name of The DragonFly Project nor the names of its | |
| 15 | .\" contributors may be used to endorse or promote products derived | |
| 16 | .\" from this software without specific, prior written permission. | |
| 17 | .\" | |
| 18 | .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 | .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 | .\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| 21 | .\" FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| 22 | .\" COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 23 | .\" INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
| 24 | .\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
| 25 | .\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
| 26 | .\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 27 | .\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
| 28 | .\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 29 | .\" SUCH DAMAGE. | |
| 30 | .\" | |
| 31 | .Dd July 1, 2010 | |
| 32 | .Os | |
| 33 | .Dt MKINITRD 8 | |
| 34 | .Sh NAME | |
| 35 | .Nm mkinitrd | |
| 36 | .Nd build an initial ramdisk image for use as early userland | |
| 37 | .Sh SYNOPSIS | |
| 38 | .Nm | |
| 39 | .\".Op Ar options ... | |
| 40 | .\".Ar target ... | |
| 41 | .Sh DESCRIPTION | |
| 42 | The | |
| 43 | .Nm | |
| 44 | script builds a ramdisk (md) image based on the UFS filesystem containing | |
| 45 | only the most basic tools, such as a minimal | |
| 46 | .Xr init 8 , | |
| 8cb4cb97 | 47 | .Xr sh 1 |
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48 | as well as many |
| 49 | .Xr mount 8 | |
| 50 | utilities. | |
| 51 | .Pp | |
| 8cb4cb97 | 52 | It will also copy the contents of |
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53 | .Pa /usr/share/initrd |
| 54 | onto the ramdisk, maintaining the same hierarchy. | |
| 55 | .Pp | |
| 56 | On completion, the final image will be copied to | |
| 57 | .Pa /boot/initrd.img , | |
| 58 | ready to be used as an early userland. | |
| 59 | .Pp | |
| 60 | The | |
| 61 | .Nm | |
| 62 | script will check for | |
| 63 | .Pa /etc/defaults/mkinitrd.conf | |
| 64 | and | |
| 65 | .Pa /etc/mkinitrd.conf | |
| 66 | and include the configuration from these files in the given order, allowing | |
| 67 | the user to override or add to the following variables: | |
| 68 | .Bd -literal -offset indent | |
| 69 | BUILD_DIR | |
| 70 | INITRD_SIZE | |
| 71 | BIN_TOOLS | |
| 72 | SBIN_TOOLS | |
| 73 | INITRD_DIRS | |
| 74 | CONTENT_DIRS | |
| 75 | .Ed | |
| 76 | .Pp | |
| 77 | Adding the following lines to | |
| 78 | .Pa /boot/loader.conf | |
| 79 | will enable the use of the created initrd image: | |
| 80 | .Bd -literal -offset indent | |
| 81 | initrd.img_load="YES" | |
| 82 | initrd.img_type="md_image" | |
| 83 | vfs.root.mountfrom="ufs:md0s0" | |
| 84 | .Ed | |
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85 | .Sh SEE ALSO |
| 86 | .Xr md 4 , | |
| 87 | .Xr loader.conf 5 |