はじめまして、渡辺と申します。
NXP社製SoCのiMX6Soloとyoctoを用いてLinuxボードを開発しています。

yoctoでNXP社製のレシピを用いてLinuxの起動イメージを作成し、SDカードに書き込んでボードを起動させました。
その結果、ブートローダ、カーネルの起動は成功してSystemdでのデーモン起動まで行くのですが、途中で停止する状況です。
停止の原因の切り分けを行いたいため、yoctoでSystemdで起動するデーモンをカスタマイズしたいのですが、どのようにすればよいでしょうか?

よろしくお願いします。

■補足
・yoctoでのrootfsの生成とカーネル生成、SDカードイメージの作成、SDKの作成は成功しています。
・メモリチップをリファレンスボードから変更しているため、yoctoとは別のツリーでブートローダへメモリコントローラの設定を変更し、yoctoで生成したSDKを用いてビルドしています。
・U-bootでのメモリストレステストでエラーが出ない事は確認済みです。
・デバイスツリーはボードの実態に合わせてカスタマイズし、yoctoでカーネルと一緒にビルドしていますが正しい自信はありません
・yoctoでのイメージ作成に用いたコマンドは以下の通りです。
$ DISTRO=fsl-imx-wayland MACHINE=imx6solosabresd source fsl-setup-release.sh –b build-wayland_imx6
$ bitbake fsl-image-qt5-validation-imx

・以下に起動ログを添付します。

U-Boot 2017.03-00886-gb76bb1b (Oct 23 2020 - 13:47:36 +0900)

CPU: Freescale i.MX6SOLO rev1.3 996 MHz (running at 792 MHz)
CPU: Commercial temperature grade (0C to 95C) at 29C
Reset cause: POR
Model: Freescale i.MX6 DualLite SABRE Smart Device Board
Board: MX6-SabreSD
DRAM: 1 GiB
PMIC: PFUZE100! DEV_ID=0x10 REV_ID=0x21
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
No panel detected: default to Hannstar-XGA
Display: Hannstar-XGA (1024x768)
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc1 is current device
Net: No ethernet found.
Normal Boot
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc1 is current device
reading boot.scr
** Unable to read file boot.scr **
reading zImage
6051656 bytes read in 297 ms (19.4 MiB/s)
Booting from mmc ...
reading imx6dl-sabresd.dtb
49619 bytes read in 27 ms (1.8 MiB/s)
Kernel image @ 0x12000000 [ 0x000000 - 0x5c5748 ]
## Flattened Device Tree blob at 18000000
Booting using the fdt blob at 0x18000000
Using Device Tree in place at 18000000, end 1800f1d2
switch to ldo_bypass mode!

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 4.9.88-imx_4.9.88_2.0.0_ga+g5e23f9d (oe-user@oe-host) (gcc version 7.3.0 (GCC) ) #1 SMP PREEMPT Thu Oct 22 11:00:46 JST 2020
CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c53c7d
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt:Machine model: TechnoLink TL0365 iMX6S HDMI Viewer Board
Reserved memory: created CMA memory pool at 0x3c000000, size 320 MiB
OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
Memory policy: Data cache writeback
CPU: All CPU(s) started in SVC mode.
percpu: Embedded 13 pages/cpu @ab71a000 s21900 r8192 d23156 u53248
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 260096
Kernel command line: console=ttymxc0,115200 nosmp root=/dev/mmcblk2p2 rootwait rw
PID hash table entries: 4096 (order: 2, 16384 bytes)
Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
Memory: 697864K/1048576K available (8192K kernel code, 339K rwdata, 2576K rodata, 1024K init, 442K bss, 23032K reserved, 327680K cma-reserved, 0K highmem)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0xc0800000 - 0xff800000 (1008 MB)
lowmem : 0x80000000 - 0xc0000000 (1024 MB)
pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
.text : 0x80008000 - 0x80900000 (9184 kB)
.init : 0x80c00000 - 0x80d00000 (1024 kB)
.data : 0x80d00000 - 0x80d54fa0 ( 340 kB)
.bss : 0x80d56000 - 0x80dc48c4 ( 443 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
Preemptible hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 32.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=2.
RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=2
NR_IRQS:16 nr_irqs:16 16
L2C-310 erratum 769419 enabled
L2C-310 enabling early BRESP for Cortex-A9
L2C-310 full line of zeros enabled for Cortex-A9
L2C-310 ID prefetch enabled, offset 16 lines
L2C-310 dynamic clock gating enabled, standby mode enabled
L2C-310 cache controller enabled, 16 ways, 512 kB
L2C-310: CACHE_ID 0x410000c8, AUX_CTRL 0x76450001
Switching to timer-based delay loop, resolution 333ns
sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 715827882841ns
clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 2048 (order: 1, 8192 bytes)
Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes)
CPU: Testing write buffer coherency: ok
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x10100000 - 0x10100058
Brought up 1 CPUs
SMP: Total of 1 processors activated (6.00 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 3 part 30 variant 9 rev 4
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 512 (order: 3, 32768 bytes)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
CPU identified as i.MX6DL, silicon rev 1.3
vddarm: bypassed regulator has no supply!
vddarm: failed to get the current voltage(-517)
vddsoc: bypassed regulator has no supply!
vddsoc: failed to get the current voltage(-517)
hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 4 bytes.
imx6dl-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
imx-gpc 20dc000.gpc: pu regulator not ready, retry
mxs-dma 110000.dma-apbh: initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
2000000.aips-bus:usbphy_nop1 supply vcc not found, using dummy regulator
2000000.aips-bus:usbphy_nop2 supply vcc not found, using dummy regulator
i2c i2c-0: IMX I2C adapter registered
i2c i2c-0: can't use DMA, using PIO instead.
i2c i2c-1: IMX I2C adapter registered
i2c i2c-1: can't use DMA, using PIO instead.
i2c i2c-2: IMX I2C adapter registered
i2c i2c-2: can't use DMA, using PIO instead.
Linux video capture interface: v2.00
imx-ipuv3 2400000.ipu: IPU DMFC NORMAL mode: 1(0~1), 5B(4,5), 5F(6,7)
MIPI CSI2 driver module loaded
imx rpmsg driver is registered.
Advanced Linux Sound Architecture Driver Initialized.
clocksource: Switched to clocksource mxc_timer1
VFS: Disk quotas dquot_6.6.0
VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
NET: Registered protocol family 2
TCP established hash table entries: 8192 (order: 3, 32768 bytes)
TCP bind hash table entries: 8192 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
UDP hash table entries: 512 (order: 2, 16384 bytes)
UDP-Lite hash table entries: 512 (order: 2, 16384 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
hw perfevents: enabled with armv7_cortex_a9 PMU driver, 7 counters available
Bus freq driver module loaded
workingset: timestamp_bits=30 max_order=18 bucket_order=0
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
jffs2: version 2.2. (NAND) c 2001-2006 Red Hat, Inc.
fuse init (API version 7.26)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
imx-weim 21b8000.weim: Driver registered.
backlight supply power not found, using dummy regulator
mxc_sdc_fb fb@0: registered mxc display driver ldb
imx-ipuv3 2400000.ipu: IPU DMFC DP HIGH RESOLUTION: 1(0,1), 5B(2~5), 5F(6,7)
Console: switching to colour frame buffer device 128x48
mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0x1a:0xa0:0xc1
fbcvt: 1920x1080@60: CVT Name - 2.073M9
mxc_sdc_fb fb@1: registered mxc display driver hdmi
mxc_sdc_fb fb@3: registered mxc display driver ldb
mxc_sdc_fb fb@3: ipu0-di0 already in use
mxc_sdc_fb: probe of fb@3 failed with error -16
imx-sdma 20ec000.sdma: no iram assigned, using external mem
imx-sdma 20ec000.sdma: loaded firmware 3.3
pfuze100-regulator 1-0008: Full layer: 2, Metal layer: 1
pfuze100-regulator 1-0008: FAB: 0, FIN: 0
pfuze100-regulator 1-0008: pfuze100 found.
vddpu: supplied by SW1C
usb_otg_vbus: supplied by SWBST
usb_h1_vbus: supplied by SWBST
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 26, base_baud = 5000000) is a IMX
console [ttymxc0] enabled
21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 71, base_baud = 5000000) is a IMX
imx sema4 driver is registered.
[drm] Initialized
[drm] Initialized vivante 1.0.0 20120216 on minor 0
brd: module loaded
loop: module loaded
m25p80 spi0.0: unrecognized JEDEC id bytes: 00, 00, 00
spi_imx 2008000.ecspi: probed
HSI/SSI char device loaded
libphy: Fixed MDIO Bus: probed
usbcore: registered new interface driver kaweth
pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver
usbcore: registered new interface driver pegasus
usbcore: registered new interface driver rtl8150
usbcore: registered new interface driver r8152
usbcore: registered new interface driver asix
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver cdc_eem
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_ncm
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-mxc: Freescale On-Chip EHCI Host driver
usbcore: registered new interface driver usb_ehset_test
2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
ci_hdrc ci_hdrc.1: EHCI Host Controller
ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 1
ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
mousedev: PS/2 mouse device common for all mice
snvs_rtc 20cc000.snvs:snvs-rtc-lp: rtc core: registered 20cc000.snvs:snvs-r as rtc0
i2c /dev entries driver
mxc_v4l2_output v4l2_out: V4L2 device registered as video16
mxc_v4l2_output v4l2_out: V4L2 device registered as video17
mxc_v4l2_output v4l2_out: V4L2 device registered as video18
imx2-wdt 20c0000.wdog: timeout 60 sec (nowayout=0)
sdhci: Secure Digital Host Controller Interface driver
sdhci: Copyright(c) Pierre Ossman
sdhci-pltfm: SDHCI platform and OF driver helper
sdhci-esdhc-imx 2194000.usdhc: Got CD GPIO
sdhci-esdhc-imx 2194000.usdhc: Got WP GPIO
mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA
sdhci-esdhc-imx 2198000.usdhc: Got CD GPIO
sdhci-esdhc-imx 2198000.usdhc: Got WP GPIO
mmc2: SDHCI controller on 2198000.usdhc [2198000.usdhc] using ADMA
mmc2: new high speed SDHC card at address 5048
mmc3: SDHCI controller on 219c000.usdhc [219c000.usdhc] using ADMA
mxc_vdoa 21e4000.vdoa: i.MX Video Data Order Adapter(VDOA) driver probed
mmcblk2: mmc2:5048 Y016L 14.5 GiB
mxc_hdmi_cec soc:hdmi_cec@00120000: HDMI CEC initialized
caam 2100000.caam: ERA source: CAAMVID.
caam 2100000.caam: AXI pipeline throttling enabled.
mmcblk2: p1 p2
caam 2100000.caam: device ID = 0x0a16010000000100 (Era 4)
job rings = 2, qi = 0
caam_jr 2101000.jr0: Entropy delay = 3200
caam_jr 2101000.jr0: Instantiated RNG4 SH0.
caam_jr 2101000.jr0: Instantiated RNG4 SH1.
mmc3: new DDR MMC card at address 0001
caam algorithms registered in /proc/crypto
mmcblk3: mmc3:0001 008GB0 7.28 GiB
caam_jr 2101000.jr0: registering rng-caam
platform caam_sm: blkkey_ex: 4 keystore units available
mmcblk3boot0: mmc3:0001 008GB0 partition 1 8.00 MiB
～中略～
caam-snvs 20cc000.caam-snvs: can't get snvs clock
caam-snvs 20cc000.caam-snvs: violation handlers armed - non-secure state
usbcore: registered new interface driver usbhid
usbhid: USB HID core driver
fsl-ssi-dai 202c000.ssi: No cache defaults, reading back from HW
imx-audio-hdmi sound-hdmi: hdmi-hifi.0 <-> soc:hdmi_audio@00120000 mapping ok
NET: Registered protocol family 26
NET: Registered protocol family 10
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
8021q: 802.1Q VLAN Support v1.8
Key type dns_resolver registered
cpu cpu0: regulators not ready, retry
vddarm: supplied by SW1AB
vddsoc: supplied by SW1C
imx-gpc 20dc000.gpc: Registered imx-gpc
mmcblk3boot1: mmc3:0001 008GB0 partition 2 8.00 MiB
mxc_vpu 2040000.vpu_fsl: VPU initialized
cpu cpu0: Registered imx6q-cpufreq
imx_thermal 2000000.aips-bus:tempmon: Commercial CPU temperature grade - max:95C critical:90C passive:85C
input: gpio-keys as /devices/soc0/gpio-keys/input/input0
snvs_rtc 20cc000.snvs:snvs-rtc-lp: setting system clock to 1970-01-01 00:00:01 UTC (1)
usb_otg_vbus: disabling
wm8962-supply: disabling
sensor-supply: disabling
mipi_dsi_pwr_on: disabling
VGEN2: disabling
VGEN3: disabling
ALSA device list:
#0: imx-hdmi-soc
mmcblk3rpmb: mmc3:0001 008GB0 partition 3 4.00 MiB
EXT4-fs (mmcblk2p2): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (mmcblk2p2): mounted filesystem with ordered data mode. Opts: (null)
VFS: Mounted root (ext4 filesystem) on device 179:2.
random: fast init done
devtmpfs: mounted
Freeing unused kernel memory: 1024K
systemd[1]: System time before build time, advancing clock.
systemd[1]: systemd 234 running in system mode. (+PAM -AUDIT -SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP -LIBCRYPTSETUP -GCRYPT -GNUTLS +ACL +XZ -LZ4 -SECCOMP +BLKID -ELFUTILS +KMOD -IDN2 -IDN default-hierarchy=hybrid)
systemd[1]: Detected architecture arm.

Welcome to NXP i.MX Release Distro 4.9.88-2.0.0 (rocko)!

systemd[1]: Set hostname to <imx6solosabresd>.
systemd[1]: Created slice User and Session Slice.
[ OK ] Created slice User and Session Slice.
systemd[1]: Listening on Journal Socket (/dev/log).
[ OK ] Listening on Journal Socket (/dev/log).
systemd[1]: Listening on Journal Socket.
[ OK ] Listening on Journal Socket.
systemd[1]: Listening on /dev/initctl Compatibility Named Pipe.
[ OK ] Listening on /dev/initctl Compatibility Named Pipe.
systemd[1]: Started Dispatch Password Requests to Console Directory Watch.
[ OK ] Started Dispatch Password Requests to Console Directory Watch.
systemd[1]: Reached target Remote File Systems.
[ OK ] Reached target Remote File Systems.
systemd[1]: Listening on udev Kernel Socket.
[ OK ] Listening on udev Kernel Socket.
[ OK ] Listening on Syslog Socket.
[ OK ] Reached target Host and Network Name Lookups.
[ OK ] Created slice System Slice.
Mounting Kernel Debug File System...
Starting Journal Service...
[ OK ] Created slice system-getty.slice.
[ OK ] Created slice system-serial\x2dgetty.slice.
Starting Load Kernel Modules...
Starting Setup Virtual Console...
[ OK ] Started Forward Password Requests to Wall Directory Watch.
galcore: loading out-of-tree module taints kernel.
galcore: clk_get vg clock failed, disable vg!
Galcore version 6.2.4.150331
[ OK ] Reached target Paths.
Starting Remount Root and Kernel File Systems...
[ OK ] Reached target Swap.
EXT4-fs (mmcblk2p2): re-mounted. Opts: (null)
Mounting Temporary Directory (/tmp)...
[ OK ] Reached target Slices.
[ OK ] Listening on Network Service Netlink Socket.
[ OK ] Listening on udev Control Socket.
[ OK ] Mounted Kernel Debug File System.
[ OK ] Mounted Temporary Directory (/tmp).
[ OK ] Started Setup Virtual Console.
[ OK ] Started Remount Root and Kernel File Systems.
[ OK ] Started Journal Service.
Starting Create System Users...
Starting Rebuild Hardware Database...
Starting Flush Journal to Persistent Storage...
[ OK ] Started Create System Users.
systemd-journald[190]: Received request to flush runtime journal from PID 1
Starting Create Static Device Nodes in /dev...
[ OK ] Started Flush Journal to Persistent Storage.
[ OK ] Started Create Static Device Nodes in /dev.
Starting udev Kernel Device Manager...
[ OK ] Reached target Local File Systems (Pre).
Mounting /var/volatile...
[ OK ] Started Load Kernel Modules.
[ OK ] Mounted /var/volatile.
[ OK ] Reached target Local File Systems.
Starting Rebuild Dynamic Linker Cache...
Starting Rebuild Journal Catalog...
Starting Create Volatile Files and Directories...
Starting Load/Save Random Seed...
Mounting FUSE Control File System...
Mounting Kernel Configuration File System...
Starting Apply Kernel Variables...
[ OK ] Mounted Kernel Configuration File System.
[ OK ] Mounted FUSE Control File System.
[ OK ] Started udev Kernel Device Manager.
[ OK ] Started Rebuild Journal Catalog.
[ OK ] Started Create Volatile Files and Directories.
[ OK ] Started Load/Save Random Seed.
Starting Network Time Synchronization...
Starting Update UTMP about System Boot/Shutdown...
[ OK ] Started Apply Kernel Variables.
[ OK ] Started Network Time Synchronization.
[ OK ] Started Update UTMP about System Boot/Shutdown.
[ OK ] Reached target System Time Synchronized.
[ OK ] Started Rebuild Hardware Database.
Starting udev Coldplug all Devices...
[ OK ] Started udev Coldplug all Devices.
[ OK ] Found device /dev/ttymxc0.
(ここで停止)