The iso9660.mk modifies the menu.lst file from Grub to set the correct
initrd/kernel image locations. However, with the upcoming support of
other bootloaders for iso9660 filesystems, we need to modify a bit
this logic.
Instead of relying on the specific details of the grub menu.lst
syntax, we introduce the __KERNEL_PATH__ and __INITRD_PATH__ magic
keywords, which iso9660.mk will replace by the appropriate
values. They can therefore be used where needed in grub menu.lst, and
in similar configuration files of other bootloaders, as will be
supported in the following commits.
Also, in order to be consistent with the soon to be introduced support
for having the root filesystem itself as iso9660, this commit changes
the installation location of the initrd and kernel. Instead of being
/initrd and /kernel, they become /boot/initrd and
/boot/$(LINUX_IMAGE_NAME).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Instead of using directly the splash image from the Buildroot source
directory boot/grub, this commit changes the iso9660 logic to use the
splash image installed in $(TARGET_DIR)/boot/grub.
This effectively allows a user to use a custom splash image by
installing it to $(TARGET_DIR) through a rootfs overlay or using a
post-build script.
Suggested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
In order to simplify the introduction of the support for using ISO9660
as the real root filesystem, this commit changes the location of the
grub splash image. This makes it match where the splash image is
located in $(TARGET_DIR), so that regardless of whether the
initrd/initramfs solution or the real iso9660 filesystem solution are
used, the splash image is installed at the same location.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
For consistency reasons, this commit renames all internal variables of
iso9660.mk to use the ROOTFS_ISO9660 prefix.
While we're at it, replace a useless ':=' by '='.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
We already enable the Rockridge extension by default when building
ISO9660, so let's also enable the Joliet extension which allows to
support Unicode file names and long file names.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit converts the iso9660 logic to the common rootfs
infrastructure. What previously prevented it from being converted is
that the iso9660 logic needed to remove a temporary folder after the
image has been created.
However, since Buildroot typically keeps build artefacts around, this
commit changes the logic to keep this temporary folder around. Thanks
to this change, converting to the common rootfs infrastructure becomes
possible.
In addition, the temporary folder is renamed from $(BUILD_DIR)/iso9660
to the more descriptive $(BUILD_DIR)/rootfs-iso9660.tmp.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
In preparation to the addition of numerous additional options to the
iso9660 filesystem logic, use a if ... endif block instead of a
depends on for the only option that currently exists.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This commit improves the filesystem handling code to declare its
various targets as PHONY when appropriate.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This way we don't depend on the permissions of files under boot/ or fs/,
which aren't tracked.
While we're at it, change all 'cp' usages into 'install' with the
correct mode for each file.
Signed-off-by: Guido Martínez <guido@vanguardiasur.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The "iso image" rootfs target is a special one, as it does not use the
ROOTFS_TARGET infrastructure. The absence of ROOTFS_*_DEPENDENCIES
variable makes "make source" to skip this target's dependencies
(namely host-cdrkit and it's children) obstructing an offline build.
[Thomas: add the rootfs-iso9660-show-depends target, so that 'make
graph-depends' doesn't break when iso9660 is selected.]
Signed-off-by: Karoly Kasza <kaszak@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, the symlinks in the generated filesystems will have the
UID of the user running the build, because 'chown' does not change
the ownership of symlinks, by default.
Although the implications are limited, some may not want that UID
to leak in the generated filesystems.
So, use 'chown -h' so even symlinks get properly chowned.
Reported-by: Angelo Dureghello <angelo@barix.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Similar to the "fs/initramfs: fix initramfs support" commit the same
problem applies to iso9660 in a different way. By adding iso9660 to
TARGETS it gets called before target-finalize with obvious consequences.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
When Grub is built with splashscreen support, copy the splashscreen
image to the ISO9660 filesystem. Otherwise, disable the splashscreen
in the grub menu.lst file.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
When using initramfs built into the kernel, it is useless to put an
initrd in the iso image. This patch makes the image to only contain
the kernel image, and also removes the initrd line from menu.lst
Signed-off-by: Thierry Bultel <thierry.bultel@wanadoo.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The fs/iso9660 logic assumes that the Grub bootloader is
used. Therefore, it should make sure that Grub is configured with the
support for the ISO9660 filesystem.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
The ISO9660-specific Grub menu.lst contains two entries: one entry to
chainload the bootloader available in the first hard drive, and
another entry to boot the Buildroot system.
However, it defaults to booting the first entry, i.e chainloading
what's on the first hard drive. For a Buildroot generated system, this
is quite odd: we're not even booting the system built by Buildroot.
So, switch the two entries, and put the Buildroot boot entry first.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
This patch lines up the comments of packages that need a Linux kernel to be
built by buildroot, to the format:
foo needs a Linux kernel to be built
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This makes the compression extension available in a variable, so it
can be used by the fs-specific commands. In this patch, it is used
by iso9660. Following patches show more use cases.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
When a package A depends on config option B and toolchain option C, then
the comment that is given when C is not fulfilled should also depend on B.
For example:
config BR2_PACKAGE_A
depends on BR2_B
depends on BR2_LARGEFILE
depends on BR2_WCHAR
comment "A needs a toolchain w/ largefile, wchar"
depends on !BR2_LARGEFILE || !BR2_WCHAR
This comment should actually be:
comment "A needs a toolchain w/ largefile, wchar"
depends on BR2_B
depends on !BR2_LARGEFILE || !BR2_WCHAR
or if possible (typically when B is a package config option declared in that
same Config.in file):
if BR2_B
comment "A needs a toolchain w/ largefile, wchar"
depends on !BR2_LARGEFILE || !BR2_WCHAR
[other config options depending on B]
endif
Otherwise, the comment would be visible even though the other dependencies
are not met.
This patch adds such missing dependencies, and changes existing such
dependencies from
depends on BR2_BASE_DEP && !BR2_TOOLCHAIN_USES_GLIBC
to
depends on BR2_BASE_DEP
depends on !BR2_TOOLCHAIN_USES_GLIBC
so that (positive) base dependencies are separate from the (negative)
toolchain dependencies. This strategy makes it easier to write such comments
(because one can simply copy the base dependency from the actual package
config option), but also avoids complex and long boolean expressions.
Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(untested)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
The ext2 initrd is pretty broken, because it requires an additional
root=/dev/ram0 command line parameter, and a /init to mount
devtmps that isn't there in out ext2 rootfs. So just use a cpio
instead.
Note that there is no check if the kernel supports initramfs or the
selected compression method.
Also removed a bit of dead code in iso9660.mk.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
There used to be a mechanism using which packages could leave a
.fakeroot.<something> file which could contain commands to be executed
within the fakeroot environment. Since this mechanism is no longer
used by any package, remove it from the common infrastructure.
The latest user was nfs-utils, which used this mechanism to do the
"make install" as root, since doing otherwise was not supported. But
since 16e7b8255c, nfs-utils has been
upgraded and converted to the package infrastructure, and this hack is
no longer necessary. Another past user was the ltp-testsuite package,
for the same reason, and since
a72a670489, the fakeroot hack is no
longer needed.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
iso9660 used LINUX26_IMAGE_PATH, which got renamed. Adjust to match
the new name.
Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Use rootfs-* rather than *-root, to match the convention used under
package/ and which fits with the ROOTFS_*_ variables.
This will also help with the host dependencies.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
