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Instead of simply creating partitions large enough to contain the
contents of a --source partition (and adding a pre-specified amount of
padding), use the --size used in the partition .wks statement.
If --size isn't used, or is smaller than the actual --source size,
retain the current behavior.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Hook up the existing --debug option to toggle the wic debug loglevel,
which is indispensible when things go wrong, and make it easy to use
from the command-line.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Remove all the Wic_PartData and DirectImageCreator code now
implemented by the BootimgEFIPlugin and BootimgPcbiosPlugin plugins,
as well as all the special-cased boot_type code, significantly
cleaning up the code.
Replace the calling code with general-purpose plugin invocations, in
essence calling the appropriate implementations at run-time based on
the --source value in effect.
Change the directdisk.wks and mkefidisk.wks scripts to make use of the
new plugins.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Implement the BootimgPcbiosPlugin and BootimgEFIPlugin SourcePlugin
classes. The configure/prepare_partition() methods are implemented
using code derived from similar code in the Wic_PartData class.
These classes have the corresponding names 'bootimg-pcbios' and
'bootimg-efi', which are the names that should be used in the --source
parameters of the .wks partition commands.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Define the SourcePlugin class, which is the class that should be
subclassed to create a 'source' plugin.
'Source' plugins provide a mechanism to customize various aspects of
the image generation process in wic, mainly the contents of
partitions.
The initial version of wic defined a --source param for partitions,
which was in the first revision hard-coded to two possible values:
rootfs and bootimg.
This patch essentially removes the hard-coded --bootimg param and
replaces it with a plugin system that maps the value specified as
--source to a particular 'source' plugin instead.
A 'source' plugin is created as a subclass of SourcePlugin and the
plugin file containing it is added to scriptsl/lib/mic/plugins/source/
to make the plugin implementation available to the wic implementation.
When the wic implementation needs to invoke a partition-specific
implementation, it looks for the plugin that has the same name as the
--source param given to that partition. For example, if the partition
is set up like this:
part /boot --source bootimg-pcbios ...
then the methods defined as class members of the plugin having the
matching .name class member would be used.
To be more concrete, here's the plugin definition that would match a
'--source bootimg-pcbios' usage, along with an example method that
would be called by the wic implementation when it needed to invoke an
implementation-specific partition-preparation function:
class BootimgPcbiosPlugin(SourcePlugin):
name = 'bootimg-pcbios'
@classmethod
def do_prepare_partition(self, part, ...)
If the subclass itself doesn't implement a function, a 'default'
version in a superclass will be located and used, which is why all
plugins must be derived from SourcePlugin.
This scheme is extensible - adding more hooks is a simple matter of
adding more plugin methods to SourcePlugin and derived classes. The
code that then needs to call the plugin methods the uses
plugin.get_source_plugin_methods() to find the method(s) needed by the
call; this is done by filling up a dict with keys containing the
methon names of interest - on success, these will be filled in with
the actual methods. fPlease see the implementation for examples and
details.
Note that a source plugin need not restrict itself to methods that
apply directly to partitions - methods can also be defined for higher
level processing such as at the 'disk' level. The
get_default_source_plugin() of DirectImageCreator allows the default
source plugin to be retrieved; by default this is set to be the same
plugin used for the /boot partition, but that can be overridden by
specifying a different --source and therefore different plugin on the
'bootloader' line. This isn't ideal, but it avoids forcing a new
high-level object to be defined for that purpose.
Note that the '--source rootfs' param remains as its current
hard-coded value, which is just the rootfs to be used to populate the
partition - by default, that's just the value of the bitbake
ROOTFS_DIR variable (or whatever was passed in using the -r param).
Note that this also could also be overridden by creating a source
plugin using a different name; at this point, unlike with bootimg,
there's been no need to do so.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Add a new wic-specific bootloader subclass so we can add a --source
param to hang non-partition plugin off of.
By default, the bootloader gets the /boot partition source plugin, but
this can be overridden by the --source bootloader param if needed.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Add get_bitbake_var() and bitbake_env_lines() functions for use by
plugins, which will need access to them for customization.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Move a couple items into a more common location since they're going to
need to be accessible from source plugins.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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This seems to be an obsolete check - we don't have any problems with
image creation under selinux, so remove it.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
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Remove unnecessary pseudo exports i.e. PSEUDO_DISABLED and move the
setup to the top-level prepare_rootfs().
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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find_binary_path() is useful, but if the binary isn't found, it prints
a stacktrace and a less-than-useful message. Users complain when they
get stacktraces for things they can act on, so remove the stacktrace
and tell the user what the problem is.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Current functionality doesn't make use of kpartx, mount, or unmount,
and we use native mkswap, so remove the binary checks for those.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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We don't currently use LiveCDImageCreator, but it makes calls when
initialized via the plugin interface to rpmmisc module functions,
which we don't want the dependency on.
To make it (and LiveUSBImageCreator) happy, we give it the dummy
"i386" value for now.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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BaseImageCreator is a base class for DirectImageCreator and others,
and imports rpm and grabber (which imports rpm).
The various plugins e.g. DirectPlugin import the creators and
therefore these dependencies, which manifest at run-time as e.g.:
Warning: Failed to load plugin imager/direct_plugin: No module named
rpm
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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We don't currently use rpm functionality, so we don't need to silence
rpm warnings.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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mylrlgrab is in grabber, which imports rpm. For current
functionality, we don't need to grab urls or import rpm, so remove the
dependency.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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rpmmisc imports rpm and contains misc rpm utilities related to
packaging and determining arches based on the packaging. We should
never run across this in the initial version of wic, so remove the
dependency.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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rt_util contains bootstrap_mic(), which imports rpm and other things
we don't need because we don't do bootstrap i.e. runtime (set in
wic.conf) is always set to 'native', which means use what's on the
local host.
bootstrap mode is for downloading and installing rpms that wic needs,
which we may want to implement later; for now, we just want to use
what's local.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Without this, files in the generated filesystem pick up the wrong
ownership.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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If one of these isn't found, it won't be initialized and will throw an
UnboundLocalError.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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If fat16 is specified to the mkpart parted command, parted will
default to setting the lba flag which causes certain EFI firmware
to fail to detect the filesystem. lba shouldn't be necessary for
FAT16 filesystems anyway, explicitly disable it.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Cc: Tom Zanussi <tom.zanussi@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Reuses the mic/livecd infrastructure but heavily subclasses and
modifies it to adapt to the special needs of building images from
existing OpenEmbedded build artifacts.
In addition to the OE-specific mic objects and modifications to the
underlying infrastructure, this adds a mechanism to allow OE kickstart
files to be 'canned' and made available to users via the 'wic list
images' command.
Two initial OE kickstart files have been added as canned .wks files:
directdisk, which implements the same thing as the images created by
directdisk.bbclass, and mkefidisk, which can essentially be used as a
replacement for mkefidisk.sh. Of course, since creation of these
images are now driven by .wks files rather than being hard-coded into
class files or scripts, they can be easily modified to generate
different variations on those images. They also don't require root
priveleges, since they don't use mount to create the images. They
don't however write to media like mkefidisk.sh does, but rather create
images that can be written onto media.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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This is the starting point for the implemention described in [YOCTO
3847] which came to the conclusion that it would make sense to use
kickstart syntax to implement image creation in OpenEmbedded. I
subsequently realized that there was an existing tool that already
implemented image creation using kickstart syntax, the Tizen/Meego mic
tool. As such, it made sense to use that as a starting point - this
commit essentially just copies the relevant Python code from the MIC
tool to the scripts/lib dir, where it can be accessed by the
previously created wic tool.
Most of this will be removed or renamed by later commits, since we're
initially focusing on partitioning only. Care should be taken so that
we can easily add back any additional functionality should we decide
later to expand the tool, though (we may also want to contribute our
local changes to the mic tool to the Tizen project if it makes sense,
and therefore should avoid gratuitous changes to the original code if
possible).
Added the /mic subdir from Tizen mic repo as a starting point:
git clone git://review.tizen.org/tools/mic.git
For reference, the top commit:
commit 20164175ddc234a17b8a12c33d04b012347b1530
Author: Gui Chen <gui.chen@intel.com>
Date: Sun Jun 30 22:32:16 2013 -0400
bump up to 0.19.2
Also added the /plugins subdir, moved to under the /mic subdir (to
match the default plugin_dir location in mic.conf.in, which was
renamed to yocto-image.conf (moved and renamed by later patches) and
put into /scripts.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Initial implementation of the 'wic' command.
The 'wic' command generates partitioned images from existing
OpenEmbedded build artifacts. Image generation is driven by
partitioning commands contained in an 'Openembedded kickstart' (.wks)
file specified either directly on the command-line or as one of a
selection of canned .wks files (see 'wic list images'). When applied
to a given set of build artifacts, the result is an image or set of
images that can be directly written onto media and used on a
particular system.
'wic' is based loosely on the 'mic' (Meego Image Creator) framework,
but heavily modified to make direct use of OpenEmbedded build
artifacts instead of package installation and configuration, things
already incorporated int the OE artifacts.
The name 'wic' comes from 'oeic' with the 'oe' diphthong promoted to
the letter 'w', because 'oeic' is impossible to remember or pronounce.
This covers the mechanics of invoking and providing help for the
command and sub-commands; it contains hooks for future commits to
connect with the actual functionality, once implemented.
Help is integrated into the 'wic' command - see that for details on
usage.
Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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