Similar to the other compressors. Notice that we use the -l (legacy format)
for Linux kernel initrd compatibility.
Lz4 decompression is supported by the Linux kernel since 3.11.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, to register a filesystem, one has to call:
$(eval $(call ROOTFS_TARGET,blabla))
This is very unlike the package infrastructure, where the name of the
package is automatically guessed by the infra.
It turns out that we can now do that for the filesystem infra too.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, the ubifs-in-ubi-image ("UBI image" thereafter) filesystem
is half an option of the ubifs filesystem, half a filesystem on its
own: the config options are options of the ubifs filesystem, but the
.mk code is in a separate .mk and registers a real filesystem.
Make it a full filesystem on its own, in its own directory tree.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
It needs mkzftree from zisofs-tools, so we add a dependency to it, and
we call that one explicitly (to avoid using the one from the host in
PATH).
It also needs the the uncompressed kernel image, but because it is
already in target/ so it gets compressed by mkzftree. We have two
options:
- compress everything but the kernel image,
- compress everything, kernel included, and recopy it later.
We choose the latter, because it is the simplest solution. So, we always
define the kernel-copy hook, but only register it when needed.
Finally, it needs a kernel with support for transparent
(de)compression, so we update the existing test config.
Reported-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
[Thomas: rename option to BR2_TARGET_ROOTFS_ISO9660_TRANSPARENT_COMPRESSION.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This line has been sitting there unchanged for years now, but it does
not follow current best pratices, that is:
- do not use imediate assignment,
- split lines longer than ~80 chars.
Fix that.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Some filesystems have PRE_GEN hooks that create a directory structure
under the temporary directory.
For example, iso9660 will create a sub-directory where it stores the
kernel (in case of initramfs or initrd).
So, we must run the PRE_GEN hooks after we cleanup/create the temporary
directory.
Fixes:
https://gitlab.com/buildroot.org/buildroot/-/jobs/42835965https://gitlab.com/buildroot.org/buildroot/-/jobs/42835967
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Now that they are in their own directory and no longer pollute the build
dir, there is no point in removing them.
Furthermore, a follow-up patch will require that those files survive
when more than one filesystem image is generated.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Use the newly-introdued $(FS_DIR) location to store temporary files.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Currently, we create a bunch of temporary files in $(BUILD_DIR), while
assembling the filesystem images.
Move those files to their own sub-directory.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Remove it just before generating the filesystem image.
This way, removing-and-recreating the file encloses the actual
image generation as tightly as possible.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The only users of post-target rules were ext2, cpio and initramfs.
Of those, ext2 and cpio were changed to use post-gen hooks, while
initramfs was not even using the generic rootfs infra and was fixed
to no longer reference post-target rules.
Besides, the comment in the infra was really misleading: it referenced
initramfs implying it was the sole user of that feature, even though
initramfs was not using the fs infra.
Furthermore, using post-target rules was inherently broken for top-level
parallel builds, because filesystems had to ensure the ordering by
themselves. Of the two real users of post-target rules (cpio and ext2),
one did enforce rules ordering (apparently correctly), while the other
forgot to do so.
We can get rid of post-target rules altogether, now.
Add a legacy check, to catch out-of-tree (e.g. br2-external) users of
post-target rules, and instruct them to switch to post-gen hooks instead.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
We already have a mechanism for running stuff after the filesystem is
generated, and that's called post-gen hooks.
Use those hooks.
Note: for cpio (and unlike ext2 previously), the dependency chain was
correct, in that the post-target rule correctly depended on the image
rule. Nonetheless, we still want to fix it for consistency.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
post-target rules are probably not resilient to parallel builds, given
that they do not depend on the image being generated first.
Beside, we already have a mechanism for running stuff after the
filesystem is generated, and that's called post-gen hooks.
Use those hooks.
Note: this basically reverts 75b6303 (rootfs-ext2: make the symlink as a
_POST_TARGET) since we've now re-introduced post-gen hooks.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Romain Naour <romain.naour@openwide.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
When multiple hooks are registred, both pre-a and post-command hooks'
foreach loops need to have a separator at the end in order for the
code to work as intended. Without the separator all hooks end up as a
one single line command thus making all but the first hook into
no-ops.
Fixes: 4628b6f3b4 ("fs: add pre- and post-command hooks")
Cc: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
In case we're using an initrd, we create an empty "root" directory that
will contain only the bootloader stuff, not the actual root filesystem,
because it is in an initrd (standalone or initramfs).
We have to ensure that the directory is empty before assembling the
filesystem (to avoid any file lingering from a previous run, like the
sequence "make; make"). So we first remove it before we create it, so
that on each build (especially not-from-scratch builds) we get the exact
expected content without any leftover.
However, the macro responsible for that, although defined since 7080eef9,
was never called.
Fix that by registering it as a pre-gen hook.
Note: the directory need not be created, as there are quite a few
"install -D" commands that ensure it is created. Yet, we prefer to
create it explicitly to avoid any confusion.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
By default, mksquashfs uses all the CPUs available, like us with
BR2_JLEVEL=0.
However, by setting BR21_JLEVEL to non-zero, a user volutarily limits
the number of jobbs allowed to run concurrently (for various reasons,
like this is not a priority task on the machine; or like the
autobuilders, to spread the load accross multiple runs without
overloading the machine).
So, propagate tthe parallelisn settings down to mksquashfs, to repect
the user's will.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Clayton Shotwell <clayton.shotwell@rockwellcollins.com>
Tested-by: Clayton Shotwell <clayton.shotwell@rockwellcollins.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
In some cases, the directory structure we want in the filesystem is not
exactly what we have in target/
For example, when systemd is used on a read-only rootfs, /var must be a
tmpfs. However, we may have packages that install stuff in there, and
set important rights (via the permission-table). So, at build time, we
need /var to be a symlink to the remanent location (/usr/share/factory)
while at runtime we need /var to be a directory.
One option would have been to have /var as a real directory even during
build time, and in a target-finalize hook, move everything out of there
and into the "factory" location. However, that's not possible because
it's too early: some packages may want to set ownership and/or acces
rights on directories or files in /var, and this is only done in the
fakeroot script, which is called only later during the assembling of the
filesystem images.
Also, there would have been no way to undo the tweak (i.e. we need to
restore the /var symlink so that subsequent builds continue to work) if
it were done as a target-finalize hook.
The only solution is to allow packages to register pre- and post-hooks
that are called right before and right after the rootfs commands are
executed, and inside in the fakeroot script.
We can however not re-use the BR2_ROOTFS_POST_FAKEROOT_SCRIPT feature
either because it is done before the filesystem command, but there is
nothing that is done after. Also, we don't want to add to, and modify a
user-supplied variable.
So, we introduce two new variables that packages can set to add the
commands they need to run to tweak the filesystem right at the last
moment.
Those hooks are not documented on-purpose; they are probably going to
only ever be used by systemd.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since we now request that the user sets the exact size of the ext2/3/4
filesystem, we've had quite a few users wondering what was going on when
they enable too much and the default 60M are no longer enough.
When mkfs.ext2 fails, print a hint that the user should check the size
setting.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
[Arnout: Add *** and redirect to stderr]
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
And add myself to the DEVELOPPERS for squashfs.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This change deprecates the ext2/3/4 rootfs size in blocks symbol in
favor of one that mimic the fs-size argument behavior of mkfs (i.e.
size in a human readable format accepting k, m, g or t suffix or their
upper-case variants).
This change also updates the defconfigs that used to set
BR2_TARGET_ROOTFS_EXT2_BLOCKS symbol.
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since things are no longer installed in $(HOST_DIR)/usr, the callers
should also not refer to it.
This is a mechanical change with
git grep -l '$(HOST_DIR)/usr/share' | xargs sed -i 's%$(HOST_DIR)/usr/share%$(HOST_DIR)/share%g'
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since things are no longer installed in $(HOST_DIR)/usr, the callers
should also not refer to it.
This is a mechanical change with
git grep -l '$(HOST_DIR)/usr/sbin' | xargs sed -i 's%$(HOST_DIR)/usr/sbin%$(HOST_DIR)/sbin%g'
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since things are no longer installed in $(HOST_DIR)/usr, the callers
should also not refer to it.
This is a mechanical change with
git grep -l '$(HOST_DIR)/usr/bin' | xargs sed -i 's%$(HOST_DIR)/usr/bin%$(HOST_DIR)/bin%g'
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
mkfs is now capable of generating rootfs images. Use mkfs instead of
genext2fs.
If not set, we now let mkfs calculate the block size and the number of
inodes needed.
This change also adjusts the options to meet those of mkfs.
Notes:
* Passing a null inode number to mkfs triggers its automatic calculation.
* Passing a fs-size with no unit suffix to mkfs is interpreted as using
1K block size.
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: don't pass PATH when calling mkfs.ext, just call it directly
from $(HOST_DIR)/usr/sbin, as suggested by Arnout.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Soon, the ext{2,3,4} rootfs image will no longer be generated with
genext2fs, but using mke2fs instead which has no support for the extra
inode number option.
So, deprecate the BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES option and
recommend, in lieu, to set the total inode number, taking account of
the extra ones if needed.
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Cc: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Cc: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
ext filesystems can use a block size of 1024, 2048, or 4096 bytes, the
former being interesting to store small files, while the latter being
more intersting to store bigger files.
So far, we were using the default, which was to use a 1024-byte block.
Continue doing so (for now...).
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
No option is conditional anymore, so just collate them into a single
assignment.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The previous default, zero, just meant "use the default value of the
filesystem generator", which happened to be 5% (the traditional value
for all ext-creating tools we've ever seen).
So, change the new default accordingly to 5%.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
... since passing an empty string is equivalent to not setting a label.
And fix the syntax highlighting in some editors...
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
... since zero also means auto for the mke2img script, now.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Auto-calculation of the rootfs size cannot be done in a reliable way
as it depends on the host filesystem and is broken on non ext4 host
(see bugs [1] [2]). So let the user specify the size he wants for his
rootfs.
[1] https://bugs.busybox.net/show_bug.cgi?id=8831
[2] https://bugs.busybox.net/show_bug.cgi?id=9496
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas: as suggested by Arnout, use 60 MB as the default size instead
of 64 MB.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The iso9660 generation for grub2 assumes that grub-eltorito.img is
available. However, this image is only available for the i386-pc target
(i.e. legacy BIOS). An EFI-bootable iso9660 requires a different layout.
Since we currently can't generate the EFI-bootable iso9660 layout,
require the i386-pc target to be selected in grub.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reported-by: arnaud.miche@orange.com
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The tar --no-recursion option is position sensitive. It only affects following
file listing options. Move --no-recursion before the -T option to make it
effective. This fixes duplication of entries in the generated rootfs.tar
archive.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Currently, when there is no syztem device table (permissions or static
devices) defined, then package permissions are not applied, because they
are guarded by the check on the system device tables being non empty.
Fix that by narrowing the guarding condition.
Note that the dependency on host-makedevs was not conditional; we always
build it even if we don't need it. Making it conditional is not
possible, because we don't know all the packages permissions by the time
the fs infra is parsed (packages from br2-external are parsed after it).
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Peter Korsgaard <peter@korsgaard.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Rev0 is very old (E.G. from before Linux was maintained in git), the kernel
prints a scary warning when used:
EXT4-fs warning (device sda): ext4_update_dynamic_rev:746: updating to rev 1
because of new feature flag, running e2fsck is recommended
And rev0 support is broken in u-boot 2016.11:
http://lists.denx.de/pipermail/u-boot/2016-December/275916.html
So default to rev1 instead.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This reverts commit 8035ceb56c.
Moving to pseudo brought a number of issues (and longer compilation time),
so lets stick with fakeroot now that the reported ubi issue has been worked
around.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Fixes#9386
GNU sed -i misbehaves on systems with SELinux enabled, as it tries to copy
to the SELinux security context (xattr) from the source file to to the new
destination file, which fails under fakeroot and leaves the file with 000
permissions, causing ubinize to fail when it cannot read to configuration
file.
So as a workaround, combine the install and tweak steps in a single
sed with a redirect to the destination file instead.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Make sure all files in $TARGET_DIR have a defined modification time
before to generate filesystems.
This work was sponsored by `BA Robotic Systems'.
Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
In order to make tar images reproducible, force files order in tarball.
This work was sponsored by `BA Robotic Systems'.
Signed-off-by: Jérôme Pouiller <jezz@sysmic.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Since the commit 6dd7bbb591, the label does
not need anymore to be quoted. Even worse it *must* not be simple-quoted,
unless the label will contain the double-quotes from the config variable
BR2_TARGET_ROOTFS_EXT2_LABEL.
The commit mentionned above has replaced echo by printf:
- echo "$$(ROOTFS_$(2)_CMD)" >> $$(FAKEROOT_SCRIPT)
+ $$(call PRINTF,$$(ROOTFS_$(2)_CMD)) >> $$(FAKEROOT_SCRIPT)
Since this commit the rootfs label contains extra double-quotes.
$ blkid
/dev/mmcblk0: LABEL=""BR 2016.08"" UUID="xxx"
^ ^
With this fix, the extra double-quotes have disappeared:
/dev/mmcblk0: LABEL="BR 2016.11-rc2" UUID="yyy"
Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
