buildroot/fs/initramfs/initramfs.mk, branch 2018.02

fs/initramfs: cleanups, enhance comments

2017-11-30T10:50:42+00:00

rootfs-initramfs is not using the generic fs infrastructure, because there is virtually nothing to do to build the initramfs image: there is no actual image to be built to begin with. The only purpose of rootfs-initramfs is to ensure the rootfs.cpio image is built and then that the Linux kernel is rebuilt with that rootfs.cpio as initramfs source. Using variables of the fs infra like if it were used is misleading. It looked nice as long as there was the possibility that rootfs-initramfs would one day use the fs infra. But there's no way that will happen any time soon. Furthermore, the linux' rule linux-rebuild-with-initramfs now already depends on rootfs-cpio by itself, so we need not duplicate this dependency in rootfs-initramfs. Still, we want to advertise that the dependency is on rootfs-cpio, so we get nice dependency graphs (and not expose the internal linux-rebuild-with-initramfs rule to the users). So, remove the variables and directly define the rules. Signed-off-by: "Yann E. MORIN" Cc: Thomas Petazzoni Cc: Romain Naour Reviewed-by: Romain Naour Signed-off-by: Thomas Petazzoni

fs: declare phony targets as such

2015-04-14T08:12:32+00:00

This commit improves the filesystem handling code to declare its various targets as PHONY when appropriate. Signed-off-by: Thomas Petazzoni Reviewed-by: "Yann E. MORIN"

linux: remove support of linux26-* targets

2014-07-29T21:47:03+00:00

The linux-* mirror targets of linux26-* have been added a very long time ago (2010) and linux 2.6 is now considered 'old' anyway. It no longer makes sense to support these linux26-* targets, so this patch removes them. This is a simplification introduced in preparation of the kconfig-package infrastructure. Signed-off-by: Thomas De Schampheleire Signed-off-by: Thomas Petazzoni

fs/initramfs: fix initramfs support

2014-03-06T22:01:33+00:00

On commit a24877586a566e052897e50e6a0c2f53cfb029f TARGETS_ROOTFS was introduced, however fs/initramfs/initramfs.mk was never updated, hence a show-targets would be rootfs-initramfs with rootfs-cpio afterwards hence never rebuilding the kernel with a proper cpio archive since TARGETS is always before rootfs-* as stated in the commit description. Signed-off-by: Gustavo Zacarias Signed-off-by: Thomas Petazzoni

package: remove the empty trailing lines

2013-09-13T09:10:23+00:00

Signed-off-by: Jerzy Grzegorek Signed-off-by: Peter Korsgaard

Normalize separator size to 80

2013-06-07T08:54:54+00:00

Signed-off-by: Jerzy Grzegorek Signed-off-by: Peter Korsgaard

fs/initramfs: refactor with fs/cpio

2011-09-27T20:46:00+00:00

An initramfs is in fact the same as a cpio archive, but embedded in the kernel. So instead of duplicating the cpio infrastructure, we can simply build images/rootfs.cpio and link that into the kernel. Signed-off-by: Arnout Vandecappelle (Essensium/Mind) Signed-off-by: Peter Korsgaard

initramfs: fix boot with dynamic /dev

2011-07-20T14:30:14+00:00

Devtmpfs (which is used by devtmpfs/mdev/udev options) doesn't get automounted by the kernel when an initramfs is used, causing boot failures when a dynamic /dev is used. Fix it by adding a pre-init script to mount devtmpfs before running init. Reported-by: Arnout Vandecappelle Signed-off-by: Peter Korsgaard

initramfs: fix init symlink creation

2010-11-17T20:20:45+00:00

The -e test will dereference the symlink, so if there is no /bin/init, we will constantly try to create the symlink. So rather than error on subsequent runs when the link exists, use the force flag to ln. Signed-off-by: Mike Frysinger Acked-by: Thomas Petazzoni Signed-off-by: Peter Korsgaard

Remove INITRAMFS_TARGET variable

2010-11-04T18:26:27+00:00

This used to be needed when the filesystem code was rewritten, but not the Linux compilation code. Now that the Linux compilation code has been rewritten, the mechanism to ensure that initramfs gets built *before* the kernel so that it can be integrated is different, and this INITRAMFS_TARGET variable is no longer used. See f507921d391bb2578261a9e45c003e72302dc67a for details. Signed-off-by: Thomas Petazzoni Signed-off-by: Peter Korsgaard