I'm trying to boot Linux in DDR with initfs on my customboard, based on SItara AM5728.
I,ve build busybox and create root file system as it described here. Kernel was configured as it describes here
Firstly, it gives me following error:
[ 2.351314] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -2
[ 2.358879] Please append a correct "root=" boot option; here are the available partitions:
Then I've add a symbolic link "/init" in the rootfs directory on sbin/int . And now, when I'm trying to boot my kernell, new error appears:
[ 2.404646] Failed to execute /init (error -2)
[ 2.409571] Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
What am I doing wrong?
I'm attaching my inittab, rcS files, and bootlog with last error:
::sysinit:/etc/init.d/rcS # /bin/ash # # Start an "askfirst" shell on the serial port console::askfirst:-/bin/ash # Stuff to do when restarting the init process ::restart:/sbin/init # Stuff to do before rebooting ::ctrlaltdel:/sbin/reboot ::shutdown:/bin/umount -a -r ::shutdown:/sbin/swapoff -a
Саша, [21.11.16 13:12] Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct [ 0.000000] Linux version 4.4.19-gdb0b54cdad (ilya@ubuntu) (gcc version 4.8.4 (Ubuntu/Linaro 4.8.4-2ubuntu1~14.04.1) ) #0 SMP PREEMPT Mon Nov 21 12:35:25 MSK 2016 [ 0.000000] CPU: ARMv7 Processor [412fc0f2] revision 2 (ARMv7), cr=30c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache [ 0.000000] Machine model: TI AM5728 EVM [ 0.000000] Reserved memory: created CMA memory pool at 0x0000000095800000, size 56 MiB [ 0.000000] Reserved memory: initialized node ipu2_cma@95800000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created CMA memory pool at 0x0000000099000000, size 64 MiB [ 0.000000] Reserved memory: initialized node dsp1_cma@99000000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created CMA memory pool at 0x000000009d000000, size 32 MiB [ 0.000000] Reserved memory: initialized node ipu1_cma@9d000000, compatible id shared-dma-pool [ 0.000000] Reserved memory: created CMA memory pool at 0x000000009f000000, size 8 MiB [ 0.000000] Reserved memory: initialized node dsp2_cma@9f000000, compatible id shared-dma-pool [ 0.000000] cma: Reserved 24 MiB at 0x00000000fe400000 [ 0.000000] Forcing write-allocate cache policy for SMP [ 0.000000] Memory policy: Data cache writealloc [ 0.000000] OMAP4: Map 0x00000000ffd00000 to fe600000 for dram barrier [ 0.000000] DRA752 ES2.0 [ 0.000000] PERCPU: Embedded 11 pages/cpu @eed31000 s14848 r8192 d22016 u45056 [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 472640 [ 0.000000] Kernel command line: console=ttyO2,115200n8 [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Memory: 1679644K/1897472K available (6471K kernel code, 358K rwdata, 2392K rodata, 1460K init, 289K bss, 29412K reserved, 188416K cma-reserved, 1283072K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB) [ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB) [ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc08b0054 (8865 kB) [ 0.000000] .init : 0xc08b1000 - 0xc0a1e000 (1460 kB) [ 0.000000] .data : 0xc0a1e000 - 0xc0a77be8 ( 359 kB) [ 0.000000] .bss : 0xc0a79000 - 0xc0ac1718 ( 290 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] Build-time adjustment of leaf fanout to 32. [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] OMAP clockevent source: timer1 at 32786 Hz [ 0.000000] Architected cp15 timer(s) running at 6.14MHz (virt). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x16af5adb9, max_idle_ns: 440795202250 ns [ 0.000004] sched_clock: 56 bits at 6MHz, resolution 162ns, wraps every 4398046511023ns [ 0.000015] Switching to timer-based delay loop, resolution 162ns [ 0.000334] clocksource: 32k_counter: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 58327039986419 ns [ 0.000342] OMAP clocksource: 32k_counter at 32768 Hz [ 0.000769] Console: colour dummy device 80x30 [ 0.000784] WARNING: Your 'console=ttyO2' has been replaced by 'ttyS2' [ 0.000790] This ensures that you still see kernel messages. Please [ 0.000796] update your kernel commandline. [ 0.000809] Calibrating delay loop (skipped), value calculated using timer frequency.. 12.29 BogoMIPS (lpj=61475) [ 0.000822] pid_max: default: 32768 minimum: 301 [ 0.000915] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000926] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.001500] Initializing cgroup subsys io [ 0.001517] Initializing cgroup subsys memory [ 0.001541] Initializing cgroup subsys devices [ 0.001554] Initializing cgroup subsys freezer [ 0.001564] Initializing cgroup subsys perf_event [ 0.001575] Initializing cgroup subsys pids [ 0.001600] CPU: Testing write buffer coherency: ok [ 0.001802] /cpus/cpu@0 missing clock-frequency property [ 0.001817] /cpus/cpu@1 missing clock-frequency property [ 0.001828] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 [ 0.001864] Setting up static identity map for 0x800082c0 - 0x80008318 [ 0.080044] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001 [ 0.080112] Brought up 2 CPUs [ 0.080125] SMP: Total of 2 processors activated (24.59 BogoMIPS). [ 0.080132] CPU: All CPU(s) started in SVC mode. [ 0.080461] devtmpfs: initialized [ 0.107641] VFP support v0.3: implementor 41 architecture 4 part 30 variant f rev 0 [ 0.108538] omap_hwmod: l3_main_2 using broken dt data from ocp [ 0.306611] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.310682] pinctrl core: initialized pinctrl subsystem [ 0.311512] NET: Registered protocol family 16 [ 0.312398] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.340216] cpuidle: using governor ladder [ 0.370241] cpuidle: using governor menu [ 0.378500] OMAP GPIO hardware version 0.1 [ 0.384838] irq: no irq domain found for /ocp/l4@4a000000/scm@2000/pinmux@1400 ! [ 0.409067] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers. [ 0.409077] hw-breakpoint: maximum watchpoint size is 8 bytes. [ 0.409535] omap4_sram_init:Unable to allocate sram needed to handle errata I688 [ 0.409544] omap4_sram_init:Unable to get sram pool needed to handle errata I688 [ 0.410117] OMAP DMA hardware revision 0.0 [ 0.444404] omap-dma-engine 4a056000.dma-controller: OMAP DMA engine driver [ 0.445516] edma 43300000.edma: memcpy is disabled [ 0.450184] edma 43300000.edma: TI EDMA DMA engine driver [ 0.454097] omap-iommu 40d01000.mmu: 40d01000.mmu registered [ 0.454273] omap-iommu 40d02000.mmu: 40d02000.mmu registered [ 0.454424] omap-iommu 58882000.mmu: 58882000.mmu registered [ 0.454573] omap-iommu 55082000.mmu: 55082000.mmu registered [ 0.454839] omap-iommu 41501000.mmu: 41501000.mmu registered [ 0.455023] omap-iommu 41502000.mmu: 41502000.mmu registered [ 0.457964] palmas 0-0058: Irq flag is 0x00000008 [ 0.472571] palmas 0-0058: Muxing GPIO 2f, PWM 0, LED 0 [ 0.553957] omap_i2c 48070000.i2c: bus 0 rev0.12 at 400 kHz [ 0.554446] omap_i2c 48060000.i2c: bus 2 rev0.12 at 400 kHz [ 0.555002] omap_i2c 4807c000.i2c: bus 4 rev0.12 at 400 kHz [ 0.555211] media: Linux media interface: v0.10 [ 0.555264] Linux video capture interface: v2.00 [ 0.555303] pps_core: LinuxPPS API ver. 1 registered [ 0.555310] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.555335] PTP clock support registered [ 0.555385] EDAC MC: Ver: 3.0.0 [ 0.556119] omap-mailbox 4883c000.mailbox: omap mailbox rev 0x400 [ 0.556401] omap-mailbox 4883e000.mailbox: omap mailbox rev 0x400 [ 0.556678] omap-mailbox 48840000.mailbox: omap mailbox rev 0x400 [ 0.556958] omap-mailbox 48842000.mailbox: omap mailbox rev 0x400 [ 0.557278] Advanced Linux Sound Architecture Driver Initialized. [ 0.558034] clocksource: Switched to clocksource arch_sys_counter [ 0.568901] NET: Registered protocol family 2 [ 0.569398] TCP established hash table entries: 8192 (order: 3, 32768 bytes) [ 0.569461] TCP bind hash table entries: 8192 (order: 4, 65536 bytes) [ 0.569587] TCP: Hash tables configured (established 8192 bind 8192) [ 0.569634] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.569666] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.569804] NET: Registered protocol family 1 [ 0.570057] RPC: Registered named UNIX socket transport module. [ 0.570065] RPC: Registered udp transport module. [ 0.570072] RPC: Registered tcp transport module. [ 0.570078] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.650447] hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available [ 0.652907] futex hash table entries: 512 (order: 3, 32768 bytes) [ 0.660845] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.661471] NFS: Registering the id_resolver key type [ 0.661499] Key type id_resolver registered [ 0.661506] Key type id_legacy registered [ 0.661563] ntfs: driver 2.1.32 [Flags: R/O]. [ 0.663481] bounce: pool size: 64 pages [ 0.663639] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 248) [ 0.663654] io scheduler noop registered [ 0.663666] io scheduler deadline registered [ 0.663697] io scheduler cfq registered (default) [ 0.668651] pinctrl-single 4a003400.pinmux: 282 pins at pa fc003400 size 1128 [ 0.672277] PCI host bridge /ocp/axi@0/pcie@51000000 ranges: [ 0.672287] No bus range found for /ocp/axi@0/pcie@51000000, using [bus 00-ff] [ 0.672319] IO 0x20003000..0x20012fff -> 0x00000000 [ 0.672340] MEM 0x20013000..0x2fffffff -> 0x20013000 [ 0.703065] dra7-pcie 51000000.pcie: link is not up [ 0.703242] dra7-pcie 51000000.pcie: PCI host bridge to bus 0000:00 [ 0.703255] pci_bus 0000:00: root bus resource [bus 00-ff] [ 0.703265] pci_bus 0000:00: root bus resource [io 0x0000-0xffff] [ 0.703275] pci_bus 0000:00: root bus resource [mem 0x20013000-0x2fffffff] [ 0.703669] PCI: bus0: Fast back to back transfers disabled [ 0.703794] PCI: bus1: Fast back to back transfers enabled [ 0.703840] irq: no irq domain found for /ocp/axi@0/pcie@51000000/interrupt-controller ! [ 0.703872] pci 0000:00:00.0: BAR 0: assigned [mem 0x20100000-0x201fffff] [ 0.703886] pci 0000:00:00.0: BAR 1: assigned [mem 0x20020000-0x2002ffff] [ 0.703899] pci 0000:00:00.0: PCI bridge to [bus 01] [ 0.704113] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt [ 0.705421] backlight supply power not found, using dummy regulator [ 0.764384] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled [ 0.767676] 48020000.serial: ttyS2 at MMIO 0x48020000 (irq = 301, base_baud = 3000000) is a 8250 [ 1.715051] console [ttyS2] enabled [ 1.719379] 48422000.serial: ttyS7 at MMIO 0x48422000 (irq = 302, base_baud = 3000000) is a 8250 [ 1.729451] [drm] Initialized drm 1.1.0 20060810 [ 1.736020] OMAP DSS rev 6.1 [ 1.739869] omapdss_dss 58000000.dss: bound 58001000.dispc (ops dispc_component_ops) [ 1.748317] omapdss_dss 58000000.dss: bound 58040000.encoder (ops hdmi5_component_ops) [ 1.768430] brd: module loaded [ 1.776413] loop: module loaded [ 1.782403] libphy: Fixed MDIO Bus: probed [ 1.838059] davinci_mdio 48485000.mdio: davinci mdio revision 1.6 [ 1.844185] davinci_mdio 48485000.mdio: detected phy mask fffffff9 [ 1.855147] libphy: 48485000.mdio: probed [ 1.859237] davinci_mdio 48485000.mdio: phy[1]: device 48485000.mdio:01, driver Micrel KSZ9031 Gigabit PHY [ 1.868973] davinci_mdio 48485000.mdio: phy[2]: device 48485000.mdio:02, driver Micrel KSZ9031 Gigabit PHY [ 1.879382] cpsw 48484000.ethernet: Detected MACID = 5c:f8:21:0e:96:3a [ 1.886647] cpsw 48484000.ethernet: cpsw: Detected MACID = 5c:f8:21:0e:96:3b [ 1.895200] mousedev: PS/2 mouse device common for all mice [ 1.901294] i2c /dev entries driver [ 1.907577] gpio-fan gpio_fan: GPIO fan initialized [ 1.913507] tmp102 0-0048: initialized [ 1.920102] omap_hsmmc 4809c000.mmc: Got CD GPIO [ 1.968514] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr25 mode Саша, [21.11.16 13:12] [ 1.974897] omap_hsmmc 480b4000.mmc: no pinctrl state for sdr12 mode [ 1.998164] vdd_3v3: supplied by regen1 [ 2.079373] ledtrig-cpu: registered to indicate activity on CPUs [ 2.090465] NET: Registered protocol family 10 [ 2.105780] sit: IPv6 over IPv4 tunneling driver [ 2.110984] NET: Registered protocol family 17 [ 2.115663] Key type dns_resolver registered [ 2.120034] omap_voltage_late_init: Voltage driver support not added [ 2.126887] Adding alias for supply vdd,cpu0 -> vdd,4a003b20.oppdm [ 2.133113] Adding alias for supply vbb,cpu0 -> vbb,4a003b20.oppdm [ 2.139797] Adding alias for supply vdd,cpu0 -> vdd,4a003b20.oppdm [ 2.146007] Adding alias for supply vbb,cpu0 -> vbb,4a003b20.oppdm [ 2.154170] Power Management for TI OMAP4+ devices. [ 2.159285] Registering SWP/SWPB emulation handler [ 2.166145] dmm 4e000000.dmm: initialized all PAT entries [ 2.190826] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). [ 2.197466] [drm] No driver support for vblank timestamp query. [ 2.205359] [drm] Enabling DMM ywrap scrolling [ 2.225117] mmc0: host does not support reading read-only switch, assuming write-enable [ 2.227019] mmc0: new high speed SDHC card at address 59b4 [ 2.237344] mmcblk0: mmc0:59b4 USD00 14.7 GiB [ 2.238111] mmcblk0: p1 p2 [ 2.250016] Console: switching to colour frame buffer device 100x30 [ 2.278983] omapdrm omapdrm.0: fb0: omapdrm frame buffer device [ 2.302709] mmc1: MAN_BKOPS_EN bit is not set [ 2.308251] [drm] Initialized omapdrm 1.0.0 20110917 on minor 0 [ 2.316119] mmc1: new DDR MMC card at address 0001 [ 2.321246] mmcblk1: mmc1:0001 S10004 3.56 GiB [ 2.335436] input: gpio_keys as /devices/platform/gpio_keys/input/input0 [ 2.335984] mmcblk1boot0: mmc1:0001 S10004 partition 1 4.00 MiB [ 2.346180] mmcblk1boot1: mmc1:0001 S10004 partition 2 4.00 MiB [ 2.354296] hctosys: unable to open rtc device (rtc0) [ 2.359412] mmcblk1: p1 p2 p3 [ 2.368540] aic_dvdd_fixed: disabling [ 2.372220] vmmcwl_fixed: disabling [ 2.375895] ldousb: disabling [ 2.379279] ALSA device list: [ 2.382255] No soundcards found. [ 2.385715] Warning: unable to open an initial console. [ 2.391557] Freeing unused kernel memory: 1460K (c08b1000 - c0a1e000) [ 2.398032] This architecture does not have kernel memory protection. [ 2.404646] Failed to execute /init (error -2) [ 2.409571] Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance. [ 2.422752] CPU1: stopping [ 2.425469] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.19-gdb0b54cdad #0 [ 2.432456] Hardware name: Generic DRA74X (Flattened Device Tree) [ 2.438570] Backtrace: [ 2.441040] [<c0012e88>] (dump_backtrace) from [<c0013078>] (show_stack+0x18/0x1c) [ 2.448636] r6:00000000 r5:20000193 r4:c0a4ae0c r3:00000000 [ 2.454348] [<c0013060>] (show_stack) from [<c02aa7ec>] (dump_stack+0x98/0xac) [ 2.461600] [<c02aa754>] (dump_stack) from [<c0016138>] (handle_IPI+0x184/0x198) [ 2.469022] r6:00000000 r5:c0a1a424 r4:00000001 r3:ee8b8000 [ 2.474730] [<c0015fb4>] (handle_IPI) from [<c00094a8>] (gic_handle_irq+0x78/0x7c) [ 2.482326] r7:fa212000 r6:ee8b9f48 r5:fa21200c r4:c0a208e0 [ 2.488030] [<c0009430>] (gic_handle_irq) from [<c0013b80>] (__irq_svc+0x40/0x74) [ 2.495541] Exception stack(0xee8b9f48 to 0xee8b9f90) [ 2.500611] 9f40: 00000001 00000000 fe600000 00000000 c0a204ac 00000000 [ 2.508821] 9f60: c0a2050c 00000000 c0a1b598 ee8b8000 c0a20514 ee8b9fa4 ee8b9f84 ee8b9f98 [ 2.517029] 9f80: c0027638 c00103b4 60000013 ffffffff [ 2.522096] r8:c0a1b598 r7:ee8b9f7c r6:ffffffff r5:60000013 r4:c00103b4 r3:c0027638 [ 2.529906] [<c001038c>] (arch_cpu_idle) from [<c006dff0>] (default_idle_call+0x28/0x34) [ 2.538029] [<c006dfc8>] (default_idle_call) from [<c006e248>] (cpu_startup_entry+0x1f8/0x26c) [ 2.546675] [<c006e050>] (cpu_startup_entry) from [<c0015d54>] (secondary_start_kernel+0x14c/0x158) Саша, [21.11.16 13:12] [ 2.555753] r7:c0a792b0 [ 2.558300] [<c0015c08>] (secondary_start_kernel) from [<8000954c>] (0x8000954c) [ 2.565721] r5:00000000 r4:ae843d80 [ 2.569324] —-[ end Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
#!bin/sh mount -t proc none /proc mount -t sysfs none /sys echo /sbin/mdev > /proc/sys/kernel/hotplug /sbin/mdev -s #Set PATH export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin
