Make treat copy-kernel.o as intermediate and delete it when it's no
longer needed. This can fail when the same submake was triggered
multiple times for different devices.
arm-openwrt-linux-muslgnueabi-as -k -o copy-kernel.o copy-kernel.S
export MAKEFLAGS= ;make -w -C copy-kernel CROSS_COMPILE=arm-openwrt-linux-muslgnueabi-
arm-openwrt-linux-muslgnueabi-objcopy -O binary -S copy-kernel.o copy-kernel.bin
make[5]: Entering directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
arm-openwrt-linux-muslgnueabi-objcopy -O binary -S copy-kernel.o copy-kernel.bin
rm copy-kernel.o
make[5]: Leaving directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
# "App" partition is the rootfs
arm-openwrt-linux-muslgnueabi-objcopy: 'copy-kernel.o': No such file
Makefile:27: recipe for target 'copy-kernel.bin' failed
make[5]: Leaving directory '/builder/shared-workdir/build/target/linux/gemini/image/copy-kernel'
make[5]: *** [copy-kernel.bin] Error 1
Makefile:244: recipe for target '/builder/shared-workdir/build/build_dir/target-arm_fa526_musl_eabi/linux-gemini/tmp/openwrt-gemini-storlink_sl93512r-ext4-factory.bin' failed
make[4]: *** [/builder/shared-workdir/build/build_dir/target-arm_fa526_musl_eabi/linux-gemini/tmp/openwrt-gemini-storlink_sl93512r-ext4-factory.bin] Error 2
With this change, output files are directed to $(KDIR)
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
The flash layout on the Storlink reference design for Gemini
is using 2 MB flash for the kernel, and it also insists on
overwriting the partition table with default values on every
boot. The same is true for the SQ201. This poses a problem
on recent OpenWrt firmware as the base zImage is bigger
than 2 MB.
At the same time there is a ramdisk partition of 6 MB that we
don't really need. The partition table looks like this:
Creating 7 MTD partitions on "30000000.flash":
0x000000000000-0x000000016000 : "BOOT"
0x000000120000-0x000000320000 : "Kern"
0x000000320000-0x000000920000 : "Ramdisk"
0x000000920000-0x000000f20000 : "Application"
0x000000f20000-0x000000f40000 : "VCTL"
0x000000f40000-0x000000fe0000 : "CurConf"
0x000000fe0000-0x000001000000 : "FIS directory"
On boot the "Kern" partition is copied to RAM @0x01600000
and the "Ramdisk" partition is copied to RAM @0x00800000.
Then the kernel is executed.
The idea with this patch is to extend the "Kern" partition
with the "Ramdisk" partition to get a full 8 MB to use
for the kernel. Then we put the OpenWrt JFFS2 rootfs
inside the "Application" partition.
We create a small assembly loop that we prepend to the
"Kern" image that will copy the "Kern" from 0x0160000
and the "Ramdisk" from 0x00800000 and put them in
consecutive space at 0x00400000 and execute it from
there, using "Application" as rootfs.
We generate 3 main files:
- zImage - contains the assembly bootstrap loop and
the first part of the generated kernel image
- rd.gz - contains the second part of the generated
kernel image
- hddapp.tgz - contains the root filesystem
On the SQ201 I flash these manually using the native boot
loader PLATO, "Y" alternative for the zImage, "R" for
the rd.gz image and "A" for hddapp.tgz.
This works fine and I can now boot to prompt on the SQ201
with nothing but flash.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This package just contains a small Gemini-only assembler
bootstrap loop to copy the kernel from the two fragments
(previously zImage at 0x01600000 and initramdisk at 0x00800000)
into one big zImage of up to 8 MB at 0x00400000.
It will be built on demand from the Gemini image Makefile.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The SL93512r and the NAS4220B have Redboot partition
tables (rely on these) and need to boot from mtdblock3.
Add two patches from upstream to fix this.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This changes the offsets for the MAC address location in
mtd_get_mac_binary* and mtd_get_mac_text to hexadecimal notation.
This will be much clearer for the reader when numbers are big, and
will also match the style used for mtd-mac-address in DTS files.
(e.g. 0x1006 and 0x5006 are much more useful than 4102 and 20486)
Acked-by: Alexander Couzens <lynxis@fe80.eu>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
The command line enforced by the kernel is harmful, we want to
use the command line passed from the device tree. This is
especially important for the SQ201, Teltonika RUT and WBD111
which has a console set to 115200n8 and not 19200n8 like all
the others, so their consoles will be confusingly changing
baudrate between boot loader and kernel. The setting in the
device tree corresponds to what the boot loader is using.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Somehow I missed to add the magical image cooking file
for the SL93512r. Fix it.
Fixes: 18e2053bec ("gemini: Add StorLink SL93512r images")
Reported-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [added Fixes,
changed subject]
This has been reported by Chen Minqiang (@ptpt52).
Reported-by: Chen Minqiang <ptpt52@gmail.com>
Fixes: 18e2053bec ("gemini: Add StorLink SL93512r images")
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [Added tags]
This adds image generation for the StorLink reference design
SL93512r. This board is now supported upstream in kernel
v4.19.
As this image structure is identical to SQ201 and Raidsonic,
we simply refer to this as "storlink-reference" from now on.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The DIR-685 needs this module compiled in for safety
(it is facing the LAN ports) and it is now (as of
kernel v4.19) using the DSA switch architecture so
swconfig is not needed.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It's a simple typo in the DNS file, which was pretty serious.
No scripts were working properly. Fix it up.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[integrate upstream patch into openwrt target]
Lets bump kernel to 4.19 on targets which were run tested or got ACKed
so we've enough time to make it ready for next release:
armvirt/32 (runtested in qemu)
armvirt/64 (runtested in qemu)
ath79/generic (runtested on Carambola2)
gemini/generic (runtested on DIR-685, DNS-313, SQ201, SL93512R)
imx6/generic (runtested on Apalis)
ipq40xx/generic (runtested on nbg6617)
malta/be64 (runtested in qemu)
malta/be (runtested in qemu)
malta/le (runtested in qemu)
malta/le64 (runtested in qemu)
mpc85xx/generic (runtested on TL-WDR4900)
mpc85xx/p2020 (runtested on P2020RDB)
mvebu/cortexa53
mvebu/cortexa72
mvebu/cortexa10
octeon/generic (runtested on EdgeRouter Lite)
sunxi/cortexa53 (build tested only)
sunxi/cortexa7 (runtested on Lime2-K)
sunxi/cortexa8 (build tested only)
tegra/generic
x86/64 (runtested in qemu)
Acked-by: Zoltan HERPAI <wigyori@uid0.hu> [sunxi]
Tested-by: Linus Walleij <linus.walleij@linaro.org> [gemini]
Tested-by: Tomasz Maciej Nowak <tomek_n@o2.pl> [mvebu, tegra]
Tested-by: Daniel Engberg <daniel.engberg.lists@pyret.net> [octeon]
Tested-by: Pawel Dembicki <paweldembicki@gmail.com> [mpc85xx/generic mpc85xx/p2020]
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
The squashfs+jffs2 root filesystem only came up as read-only
and the config would not take:
[ 25.600237] mount_root: Could not open mtd device: /dev/mtd4
[ 25.634674] mount_root: reading rootfs_data failed
[ 25.665346] mount_root: Could not open mtd device: /dev/mtd3
[ 25.699802] mount_root: reading rootfs failed
[ 25.726426] mount_root: mounting /dev/root
Well that is not very strange since the whole firmware partition
is made read-only in the device tree. Let's fix that by augmenting
the OpenWrt patch.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The DIR-685 has the MAC addresses in the RedBoot code just like
DNS-313. Check some magic numbers to determine that the MAC
address is where we want it and extract it from RedBoot.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[replaced ifconfig with ip, ! -z = -n, added string quotes]
The DNS-313 isn't the only special board so let's bite the
bullet and create a case ladder in preparation for DIR-685.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> [refreshed]
This simplifies the ethernet address extraction script
by using standard library functions to locate the MTD
partitions and extract ethernet address from a binary
offset location in the flash. Furthermore, the aging
ifconfig is replaced by the ip tool, which will now
assign the MAC addresses.
Suggested-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[ifconfig replacement, use -n instead of ! -z,
-n requires string to be quoted within the test brackets,
drop prepended "x" in check, add quotes, make local
variables local, kill whitespaces]
CONFIG_PACKET is a important feature to have.
The Packet protocol is used by applications which
communicate directly with network devices without
an intermediate network protocol implemented in
the kernel, e.g. tcpdump and ip.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This makes sysupgrade work on the D-Link DIR-685 after
initial factory install.
We create the platform.sh script to support sysupgrade
on more targets as we move on with sysupgrade support.
Cc: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
[cleanup in platform.sh, removed superfluous SUPPORTED_DEVICES]
Using the same method as the D-Link DAP-2695 A1 we use
the "mtd" tool to augment the firmware checkum in flash
on first boot of a new firmware on the D-Link DIR-685.
We need to augment the Makefile for "mtd" to build in
the special WRGG fixup support for Gemini as well.
This works around the problem of the machine not booting
after factory install unless the sysupgrade is applied
immediately.
Based on commit e3875350f3
"ar71xx: add support for D-Link DAP-2695 rev. A1"
Cc: Stijn Tintel <stijn@linux-ipv6.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This moves some new configuration options to the generic kernel
configuration instead of configuring them for each target on our own.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
CONFIG_BINFMT_MISC allows it to add support for new executable formats
to the kernel from user space, the kernel will then detect for example a
java binary and call the java execution program automatically. I am not
aware that this feature is used in OpenWrt and this could be used to
exploit something. Deactivate it for all targets for now.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Some targets deactivated CONFIG_SYN_COOKIES, for unknown reasons, use
the default setting from the generic configuration which activates
CONFIG_SYN_COOKIES.
This should prevent SYN flooding.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
If the target supports a newer kernel version that is not used by default
yet, it can be enabled with this option
Signed-off-by: Felix Fietkau <nbd@nbd.name>
We currently generate a kernel that boots from the harddrive
in the DIR-685. That's not how we usually do things, so
let's augment it to boot from flash and mount the rootfs
using squashfs and JFFS2 like everyone else.
Partition splitting only work when the partitions are
inside of a "partitions" node which is why we have a patch
like this (submitted upstream).
Another patch drops the rootfs arguments and renames the
firmware partition while adding the compatible "wrg"
to it so the WRGG parser will kick in.
Factory image was tested by bravely reflashing the DIR-685
from stock firmware using the web UI and the serial console
boot loader.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This makes OpenWrt build an Ext2+Ext4 partitioned image
for the D-Link DNS-313 with two blank partitions, a boot
partition on /dev/sda3 and a rootfs partition on
/dev/sda4.
This uses the methods already used in apm821xx including
the tricks to convert the generated Ext2 filesystem
partition to version 1 so that the firmware bootloader
will properly recognize it.
We patch a bit around the build files to make sure we
get the rootfs size set and that genext2fs is properly
built.
Tested on the D-Link DNS-313.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
[Fixing and tricksing]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This factory binary i supposed to actually be unzipped and
untarred by the user as part of the installation process
(this NAS boots from harddisk), so name it "bootpart.tar.gz"
and not "factory.bin" so it is helpful for users.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This is the remainder of kernel patches for the v4.19
kernel. A whole slew of the previous patch stack is now
upstream, so this mainly contains the stuff that was
added upstream between v4.19 and v5.0-rc1, and then
the USB FOTG201 patches from Hans.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
With 6409b159e8 ("gemini: switch to 4.14") the EOF marker were dropped
from the rootfs images. Without the marker the rootfs_data partition
can't be created and it isn't possible to permanently store any
configuration changes.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Replace the data placerholder in ImageInfo-itian_sq201 in a reproducible
way.
The code for the replace was accidentality dropped in 5bac623895
("gemini: unify and fix ib-nas4220b and sq201 image creation")
Signed-off-by: Mathias Kresin <dev@kresin.me>
Support for the Teltonika RUT1xx was added with the switch to kernel
4.4. Hidding such changes in a kernel switch commit is the wrong way and
the support for the Teltonika RUT1xx is pretty much incomplete.
Signed-off-by: Mathias Kresin <dev@kresin.me>
They were dropped with 6409b159e8 ("gemini: switch to 4.14") without
any explaination.
The image generation is disabled for now as it would break the build for
the target. The mkfwimage2 call need to be adjusted to reflect the real
size of kernel and rootfs. Nevertheless, add the required code to give
interested parties a chance to fix the remaining issues.
The dts would need to use the ecoscentric,redboot-fis-partitions
partition parser to get the correct partition offsets and size. It's
expected that the OEM firmware adjusts the on flash partition table with
the values defined in the image header.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Use an output image filename based on the compatible string from the dts
files. This way it is way easier to get for which board an image is
intended.
Signed-off-by: Mathias Kresin <dev@kresin.me>
The root filesystem is already part of the factory image and most likely
not required at all.
The same applies to the kernel images.
Signed-off-by: Mathias Kresin <dev@kresin.me>
There is no support for sysupgrade in gemini, hence all images are only
suitable for an installation via bootloader or oem firmware.
Signed-off-by: Mathias Kresin <dev@kresin.me>
For temporary directories <imagename>.tmp is a common pattern in image
build code across the tree. Use it for the nas4220b/sq201 recipe as
well.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Create files in temporary directories within the build directory
instead manipulating files in the (final) output directory.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Due to the missing PROFILES all images are build, regardless of the
selected (or currently processed in case of a multi profile build).
Because of the race condition builds with eight parallel jobs fail,
which can be seen on the build bots as well.
Add the PROFILES variable for now, till the root cause is identified.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Both Build/sq201-images and Build/nas4220b-images scripts
are very similar. This patch unifies both methods at the
cost of renaming the produced sysupgrade file names, but
with the benifit of creating better reproducible files.
The patch also fixes a race in parallel builds in which case
the ImageInfo of one device could end up in both sysupgrade
files.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Currently, IMAGE_NAME is expanded at declaration time
and this causes strange filename in the builder's logs:
|cp: cannot stat '[...]/openwrt-gemini-dlink-dns-313-.': No such file or directory
|cp: cannot stat '[...]/openwrt-gemini-nas4220b-.': No such file or directory
|[...]
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
CONFIG_COMPAT_BRK disables the heap randomization which is only needed
for very old and ancient user space applications, I am not aware that we
run any of these, just deactivate this option for these targets to allow
heap randomization.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This activates the CONFIG_USB_SUPPORT option in the in the gemini kernel
again which will provide the core USB support and makes it possible to
compile the rest of the USB parts into modules. Without this change USB
will not be available in the gemini target and some modules fail to
compile because the feature list indicates USB support.
Fixes: 10ec966f7b ("gemini: Break out USB to packages")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
I noticed that the image generator for the Gemini generates
some 10+ MB files for the second (application) partition.
This is just wrong. The first 6144K partition named initramfs
easily fits OpenWRTs squashfs,jffs2 overlayed partitions
with nice headroom for storing configuration files.
Generate a blank partition for the hddapp.tgz file and delete
it after generating the firmware image - when performing
updates manually you just want the "rd.z" file around
anyways.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This creates a new kernel package for the fotg210 host
controller and uses that with the gemini to shrink the
kernel. The SQ201 needs the USB2 PCI package as well.
The build system required me to make kernel_oldconfig
beofore it would build without errors so some minor
unrelated Kconfig entries are changed.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
These options are handled by generic configuration
Targets that need these options should select KERNEL_DEVMEM
and/or KERNEL_DEVKMEM options on OpenWRT's config
Signed-off-by: Luis Araneda <luaraneda@gmail.com>
This generates the "rd.gz" and "hddapp.tgz" that doesn't contain
anything of the sort but rather the OpenWRT rootfs. It works the
same way as how we generate the same layout for the NAS4220b.
For some reason the ImageInfo file is different for the SQ201.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The D-Link DIR-685 has a RealTek RT2880 mini-PCI card in a
slot. Activate the appropriate kernel module.
The Square One SQ201 has a Ralink RT61-based mini-PCI card.
Activate the appropriate kernel modules. This fixes the
previous error just activating the firmware: the kernel
module will bring in the firmware it needs.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This makes the Gemini build a WRGG-type firmware update
image for the DIR-685. This should hopefully install the
kernel from the web firmware upgrade API on the product
switching it permanently to use OpenWRT.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
THIN_ARCHIVES option is enabled by default in the kernel configuration
and no one target config disables it. So enable it by default and remove
this symbol from target specific configs to keep them light.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
New FUTEX_PI configuration symbol enabled if FUTEX and RT_MUTEX symbols
are enabled. Both of these symbols are enabled by default in the
generic config, so enable FUTEX_PI by default too to keep platform
specific configs minimal.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
OVERLAY_FS config symbol selects EXPORTFS since 4.12 kernel, we have
OVERLAY_FS enabled by default, so enable EXPORTFS in the generic config
of 4.14 and remove this option from platform specific configs.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
DRM_LIB_RANDOM config symbol selected only by DRM_DEBUG_MM_SELFTEST
which is disable by default, so disable DRM_LIB_RANDOM by default too.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
These options do not used by any supported arch, so disable them by
default to make arch configs a bit more clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Only one arch (x86_64) enables this option. So disable
ARCH_WANTS_THP_SWAP by default and remove referencies to it from all
configs (except x86_64) to make them clean.
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
This adds an interrim patch for v4.14 based on an
upstream commit to get ethernet working on D-Link DNS-313
(probably also on the Wiliboards)
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Since the D-Link devices boot from hard disk we need to
add the following changes to Gemini:
- Supply a bootarg in the device tree so we can boot from
the right partition (/dev/sda4 on DNS-313)
- Disable forced command line in config so the kernel picks
up the right bootargs from the device tree
- Enable EXT4 in the config as this is used for rootfs else
we get nowhere, we cannot load this as a module because,
well, it is supposed to be loaded from the root partition
(chicken and egg problem).
- Enable jbd2 and mbcache (needed by ext4)
Also clean out the premature attempts to dynamically
modify the command line in the Image makefile: we should
pass this with the device tree bootargs instead, it works
much better.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
Disable video and input drivers - they are needed only for one
board and can be enabled via modules if/when UI will be available.
Use LED drivers from packages.
Cleanup other things unnecessarily overriding defaults.
Signed-off-by: Roman Yeryomin <roman@advem.lv>
This adds the patches to get fairly complete Gemini support
using kernel v4.14. It is mainly a backport of patches from
kernel v4.16 with omissions of things like graphics that require
substantial changes and will be better handled once we move
to the v4.16 kernel proper.
On top of this are some WIP patches for USB support.
Tested on Raidsonic NAS4220B and D-link DNS-313.
ChangeLog v4->v5:
- Fix ethernet single gmac usecase
- Fix USB reset (patch from Hans)
- Fix Raidsonic ethernet skew delay
- Fix kernel config (bridge, squashfs, jffs2, usb)
- Disable second usb port on Raidsonic board until fotg210_hcd is fixed
ChangeLog v3->v4:
- Make sure to use tabs rather than spaces in base-files.
- Use the dns313 image tool from the firmware-utils.
- Break out the addition of the v4.14 patches and the removal
of the v4.4 patches to separate (big) patches.
ChangeLog v2->v3:
- Update the kernel config as indicated by Hauke Martens:
- Regenerate again after rebasing using kernel_oldconfig
dropping a few optimization settings that are now generic
- Drop CFG80211 stuff (module)
- Drop CIFS stuff (module)
- Drop MAC80211 (module)
- Drop wireless drivers (module)
- Enabled OverlayFS
- Added proper DNS-313 boot image generation with the special
file header tool.
- Disable CMA in the kernel
- Enable LZMA compression of the kernel
- Consequently name the nas4220b images nas4220b
- Update preinit MAC detection script to handle also DNS-313
- Add board.d/03_hdparm to set the disk to spin down after
1 minute by default, if we have the hdparm tool installed
ChangeLog v1->v2:
- Processed config through kernel_oldconfig
- Processed patches through make target/linux/{clean,refresh} V=99
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>
IMG_PREFIX can be modified in ImageBuilder by passing EXTRA_IMAGE_NAME
on command line, but Image/Prepare is not run in ImageBuilder. This
causes missing files when IMG_PREFIX is used for target file names in
Image/Prepare, then as source file names in Image/BuildKernel or
Image/Build.
Fix this by using a fixed output file name in Image/Prepare, and copy to
the expected file name in Image/BuildKernel instead, which is run by
ImageBuilder.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>