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-rw-r--r--documentation/ref-manual/ref-variables.xml46
1 files changed, 26 insertions, 20 deletions
diff --git a/documentation/ref-manual/ref-variables.xml b/documentation/ref-manual/ref-variables.xml
index 45fb55eaf4..ff8f4e73d0 100644
--- a/documentation/ref-manual/ref-variables.xml
+++ b/documentation/ref-manual/ref-variables.xml
@@ -6479,24 +6479,30 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
6479 <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link> 6479 <link linkend='var-PROVIDES'><filename>PROVIDES</filename></link>
6480 name of an image recipe that is used to build an initial 6480 name of an image recipe that is used to build an initial
6481 RAM filesystem (initramfs) image. 6481 RAM filesystem (initramfs) image.
6482 An initramfs provides a temporary root filesystem used for 6482 In other words, the <filename>INITRAMFS_IMAGE</filename>
6483 early system initialization (e.g. loading of modules 6483 variable causes an additional recipe to be built as
6484 needed to locate and mount the "real" root filesystem). 6484 a dependency to whatever root filesystem recipe you
6485 The specified recipe is added as a dependency of the root 6485 might be using (e.g. <filename>core-image-sato</filename>).
6486 filesystem recipe (e.g. 6486 The initramfs image recipe you provide should set
6487 <filename>core-image-sato</filename>). 6487 <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link>
6488 See the <filename>meta/recipes-core/images/core-image-minimal-initramfs.bb</filename> 6488 to
6489 recipe in the 6489 <link linkend='var-INITRAMFS_FSTYPES'><filename>INITRAMFS_FSTYPES</filename></link>.
6490 <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink> 6490 </para>
6491 for an example initramfs recipe. 6491
6492 To select this recipe to provide the initramfs, 6492 <para>
6493 set <filename>INITRAMFS_IMAGE</filename> to 6493 An initramfs image provides a temporary root filesystem
6494 "core-image-minimal-initramfs". 6494 used for early system initialization (e.g. loading of
6495 modules needed to locate and mount the "real" root
6496 filesystem).
6495 <note> 6497 <note>
6496 The initramfs image recipe should set 6498 See the <filename>meta/recipes-core/images/core-image-minimal-initramfs.bb</filename>
6497 <link linkend='var-IMAGE_FSTYPES'><filename>IMAGE_FSTYPES</filename></link> 6499 recipe in the
6498 to 6500 <ulink url='&YOCTO_DOCS_DEV_URL;#source-directory'>Source Directory</ulink>
6499 <link linkend='var-INITRAMFS_FSTYPES'><filename>INITRAMFS_FSTYPES</filename></link>. 6501 for an example initramfs recipe.
6502 To select this sample recipe as the one bulit
6503 to provide the initramfs image,
6504 set <filename>INITRAMFS_IMAGE</filename> to
6505 "core-image-minimal-initramfs".
6500 </note> 6506 </note>
6501 </para> 6507 </para>
6502 6508
@@ -6515,7 +6521,7 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
6515 6521
6516 <para> 6522 <para>
6517 If <filename>INITRAMFS_IMAGE</filename> is empty, which is 6523 If <filename>INITRAMFS_IMAGE</filename> is empty, which is
6518 the default, then no initramfs is built. 6524 the default, then no initramfs image is built.
6519 </para> 6525 </para>
6520 6526
6521 <para> 6527 <para>
@@ -6523,8 +6529,8 @@ recipes-graphics/xorg-font/font-alias_1.0.3.bb:PR = "${INC_PR}.3"
6523 <link linkend='var-INITRAMFS_IMAGE_BUNDLE'><filename>INITRAMFS_IMAGE_BUNDLE</filename></link> 6529 <link linkend='var-INITRAMFS_IMAGE_BUNDLE'><filename>INITRAMFS_IMAGE_BUNDLE</filename></link>
6524 variable, which allows the generated image to be bundled 6530 variable, which allows the generated image to be bundled
6525 inside the kernel image. 6531 inside the kernel image.
6526 Additionally, for information on creating an initramfs, see 6532 Additionally, for information on creating an initramfs
6527 the 6533 image, see the
6528 "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>" 6534 "<ulink url='&YOCTO_DOCS_DEV_URL;#building-an-initramfs-image'>Building an Initial RAM Filesystem (initramfs) Image</ulink>"
6529 section in the Yocto Project Development Manual. 6535 section in the Yocto Project Development Manual.
6530 </para> 6536 </para>