Hi Christopher,
Progress!!! giving the full path for FDT_SRC give make(1) success I obtained a linux-system-foundation.axf
Note that I build linux-system-foundation.axf this way.
make CROSS_COMPILE=aarch64-linux-gnu- BOOTARGS='"root=/dev/vda2 consolelog=9 rw console=ttyAMA0"' FDT_SRC=../linux/arch/arm64/boot/dts/foundation-v8.dts IMAGE=linux-system-foundation.axf
Now booting it gives ./Foundation_v8pkg/models/Linux64_GCC-4.1/Foundation_v8 --image ./kbuild/boot-wrapper-aarch64/linux-system-foundation.axf --block-device ./rootfs.img --network=nat
Linux version 3.11.0-rc6+ (phi@hpfrcu82) (gcc version 4.8.2 20130624 (prerelease) (crosstool-NG linaro-1.13.1-4.8-2013.07-1 - Linaro GCC 2013.07) ) #1 SMP Wed Aug 21 19:05:06 CEST 2013 CPU: AArch64 Processor [410fd000] revision 0 Machine: Foundation-v8A PERCPU: Embedded 10 pages/cpu @ffffffc87ffaa000 s11392 r8192 d21376 u40960 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 1034240 Kernel command line: root=/dev/vda2 consolelog=9 rw console=ttyAMA0 PID hash table entries: 4096 (order: 3, 32768 bytes)
. . . TCP: cubic registered NET: Registered protocol family 17 VFS: Cannot open root device "vda2" or unknown-block(0,0): error -6 Please append a correct "root=" boot option; here are the available partitions: Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.11.0-rc6+ #1 Call trace: [<ffffffc000087098>] dump_backtrace+0x0/0x12c [<ffffffc0000871d8>] show_stack+0x14/0x1c [<ffffffc0003618b0>] dump_stack+0x70/0x90 [<ffffffc00035efc8>] panic+0xe8/0x208 [<ffffffc00047bd04>] mount_block_root+0x1d8/0x278 [<ffffffc00047bebc>] mount_root+0x118/0x134 [<ffffffc00047c018>] prepare_namespace+0x140/0x188 [<ffffffc00047b958>] kernel_init_freeable+0x1b4/0x1d4 [<ffffffc00035d8b8>] kernel_init+0x18/0x148
So its not an illegal instruction anymore be really a wrong FS, The rootfs.img I used in the runstring is a gunzip of vexpress64-openembedded_lamp-armv8_20130719-403.img.gz
Dunno why it can't open /dev/vda2, the --block-device ./rootfs.img seems ok The message Please append a correct "root=" boot option seems strange since the top console log gives Kernel command line: root=/dev/vda2 consolelog=9 rw console=ttyAMA0
Well looks like we are getting closer to boot a newly build OS.
Cheers, Phi
On Wed, Aug 21, 2013 at 9:51 PM, Christopher Covington cov@codeaurora.org wrote:
On 08/21/2013 03:04 PM, Phi Debian wrote:
It is still a non trivial operation.
I can built linus kernel, but I can't build the boot loader, the
vexpress-foundation-v8.dts is missing, them
make CROSS_COMPILE=aarch64-linux-gnu- BOOTARGS='"root=/dev/vda2 consolelog=9 rw console=ttyAMA0"' FDT_SRC=vexpress-foundation-v8.dts IMAGE=linux-system-foundation.axf
then the FDT_SRC doesn't work
And I can't find what to link symlink with...
You should be able to give the full path with FDT_SRC and not worry about symlinking.
arch/arm64/boot/dts/foundation-v8.dts was added in commit 90556ca1.
Christopher
-- Employee of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by the Linux Foundation.