*Hi*
*Now my boot time, [from the power up to console message display] is around 
40 sec.*
*I want to reduce it further till 25 sec. below are the existing dmesg log 
of my beaglebone board.*

ubuntu@beaglebone:~$ dmesg 
[    0.000000] Booting Linux on physical CPU 0x0
[    0.000000] Linux version 4.19.94-ti-r36 (voodoo@w1-imx6q-wandboard-2gb) 
(gcc version 7.4.0 (Ubuntu/Linaro 7.4.0-1ubuntu1~18.04.1)) #1bionic SMP 
PREEMPT Mon Mar 2 15:55:39 UTC 2020
[    0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), 
cr=10c5387d
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing 
instruction cache
[    0.000000] OF: fdt: Machine model: TI AM335x BeagleBone Green Wireless
[    0.000000] Memory policy: Data cache writeback
[    0.000000] efi: Getting EFI parameters from FDT:
[    0.000000] efi: UEFI not found.
[    0.000000] cma: Reserved 48 MiB at 0x9c800000
[    0.000000] On node 0 totalpages: 130560
[    0.000000]   Normal zone: 1148 pages used for memmap
[    0.000000]   Normal zone: 0 pages reserved
[    0.000000]   Normal zone: 130560 pages, LIFO batch:31
[    0.000000] CPU: All CPU(s) started in SVC mode.
[    0.000000] AM335X ES2.1 (sgx neon)
[    0.000000] random: get_random_bytes called from start_kernel+0xa0/0x508 
with crng_init=0
[    0.000000] percpu: Embedded 17 pages/cpu s39628 r8192 d21812 u69632
[    0.000000] pcpu-alloc: s39628 r8192 d21812 u69632 alloc=17*4096
[    0.000000] pcpu-alloc: [0] 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 129412
[    0.000000] Kernel command line: console=ttyO0,115200n8 
bone_capemgr.enable_partno=BB-UART2 bone_capemgr.uboot_capemgr_enabled=1 
root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M 
net.ifnames=0 rng_core.default_quality=100 quiet
[    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 
bytes)
[    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 
bytes)
[    0.000000] Memory: 445240K/522240K available (13312K kernel code, 1156K 
rwdata, 4444K rodata, 1024K init, 355K bss, 27848K reserved, 49152K 
cma-reserved, 0K highmem)
[    0.000000] Virtual kernel memory layout:
                   vector  : 0xffff0000 - 0xffff1000   (   4 kB)
                   fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
                   vmalloc : 0xe0000000 - 0xff800000   ( 504 MB)
                   lowmem  : 0xc0000000 - 0xdfe00000   ( 510 MB)
                   pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
                   modules : 0xbf000000 - 0xbfe00000   (  14 MB)
                     .text : 0x(ptrval) - 0x(ptrval)   (14304 kB)
                     .init : 0x(ptrval) - 0x(ptrval)   (1024 kB)
                     .data : 0x(ptrval) - 0x(ptrval)   (1157 kB)
                      .bss : 0x(ptrval) - 0x(ptrval)   ( 356 kB)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] ftrace: allocating 42638 entries in 126 pages
[    0.000000] rcu: Preemptible hierarchical RCU implementation.
[    0.000000] rcu: RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
[    0.000000] Tasks RCU enabled.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128 
interrupts
[    0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[    0.000015] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 
89478484971ns
[    0.000032] clocksource: timer1: mask: 0xffffffff max_cycles: 
0xffffffff, max_idle_ns: 79635851949 ns
[    0.000041] OMAP clocksource: timer1 at 24000000 Hz
[    0.000776] timer_probe: no matching timers found
[    0.001015] Console: colour dummy device 80x30
[    0.001045] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[    0.001049] This ensures that you still see kernel messages. Please
[    0.001053] update your kernel commandline.
[    0.001113] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
[    0.046823] pid_max: default: 32768 minimum: 301
[    0.047115] Security Framework initialized
[    0.047128] Yama: becoming mindful.
[    0.047277] AppArmor: AppArmor initialized
[    0.047390] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[    0.047401] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 
bytes)
[    0.048512] CPU: Testing write buffer coherency: ok
[    0.048574] CPU0: Spectre v2: using BPIALL workaround
[    0.049060] CPU0: thread -1, cpu 0, socket -1, mpidr 0
[    0.070931] Setting up static identity map for 0x80100000 - 0x80100060
[    0.078845] rcu: Hierarchical SRCU implementation.
[    0.090150] EFI services will not be available.
[    0.094854] smp: Bringing up secondary CPUs ...
[    0.094868] smp: Brought up 1 node, 1 CPU
[    0.094878] SMP: Total of 1 processors activated (995.32 BogoMIPS).
[    0.094885] CPU: All CPU(s) started in SVC mode.
[    0.096625] devtmpfs: initialized
[    0.111301] VFP support v0.3: implementor 41 architecture 3 part 30 
variant c rev 3
[    0.111957] clocksource: jiffies: mask: 0xffffffff max_cycles: 
0xffffffff, max_idle_ns: 7645041785100000 ns
[    0.111980] futex hash table entries: 256 (order: 2, 16384 bytes)
[    0.115993] xor: measuring software checksum speed
[    0.154830]    arm4regs  :  1217.000 MB/sec
[    0.194819]    8regs     :  1091.000 MB/sec
[    0.234817]    32regs    :  1166.000 MB/sec
[    0.274817]    neon      :  1674.000 MB/sec
[    0.274823] xor: using function: neon (1674.000 MB/sec)
[    0.274842] pinctrl core: initialized pinctrl subsystem
[    0.276224] NET: Registered protocol family 16
[    0.282409] DMA: preallocated 1024 KiB pool for atomic coherent 
allocations
[    0.320970] l4_wkup_cm:clk:0010:0: failed to disable
[    0.361185] audit: initializing netlink subsys (disabled)
[    0.362484] cpuidle: using governor menu
[    0.366950] audit: type=2000 audit(0.352:1): state=initialized 
audit_enabled=0 res=1
[    0.371356] OMAP GPIO hardware version 0.1
[    0.372222] GPIO line 61 (LS_BUF_EN) hogged as output/high
[    0.374382] GPIO line 112 (MCASP0_AHCLKR) hogged as output/low
[    0.385181] No ATAGs?
[    0.385193] hw-breakpoint: debug architecture 0x4 unsupported.
[    0.410995] raid6: using algorithm neonx8 gen() 0 MB/s
[    0.411007] raid6: .... xor() 0 MB/s, rmw enabled
[    0.411014] raid6: using neon recovery algorithm
[    0.418374] edma 49000000.edma: TI EDMA DMA engine driver
[    0.422470] SCSI subsystem initialized
[    0.426957] libata version 3.00 loaded.
[    0.427279] usbcore: registered new interface driver usbfs
[    0.427340] usbcore: registered new interface driver hub
[    0.427468] usbcore: registered new device driver usb
[    0.429713] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
[    0.429985] media: Linux media interface: v0.10
[    0.430038] videodev: Linux video capture interface: v2.00
[    0.430181] pps_core: LinuxPPS API ver. 1 registered
[    0.430188] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo 
Giometti <giome...@linux.it>
[    0.430209] PTP clock support registered
[    0.430982] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[    0.435207] Advanced Linux Sound Architecture Driver Initialized.
[    0.436017] NetLabel: Initializing
[    0.436028] NetLabel:  domain hash size = 128
[    0.436032] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.436135] NetLabel:  unlabeled traffic allowed by default
[    0.437305] clocksource: Switched to clocksource timer1
[    0.602117] VFS: Disk quotas dquot_6.6.0
[    0.602222] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 
bytes)
[    0.603114] AppArmor: AppArmor Filesystem Enabled
[    0.615534] NET: Registered protocol family 2
[    0.616616] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 
6144 bytes)
[    0.616650] TCP established hash table entries: 4096 (order: 2, 16384 
bytes)
[    0.616692] TCP bind hash table entries: 4096 (order: 3, 32768 bytes)
[    0.616749] TCP: Hash tables configured (established 4096 bind 4096)
[    0.616880] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.616904] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.617128] NET: Registered protocol family 1
[    0.630527] RPC: Registered named UNIX socket transport module.
[    0.630537] RPC: Registered udp transport module.
[    0.630542] RPC: Registered tcp transport module.
[    0.630547] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    0.632068] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 
counters available
[    0.634849] Initialise system trusted keyrings
[    0.635238] workingset: timestamp_bits=14 max_order=17 bucket_order=3
[    0.642604] zbud: loaded
[    0.650066] NFS: Registering the id_resolver key type
[    0.650131] Key type id_resolver registered
[    0.650137] Key type id_legacy registered
[    0.650154] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[    0.650522] fuse init (API version 7.27)
[    0.661042] Key type asymmetric registered
[    0.661056] Asymmetric key parser 'x509' registered
[    0.661158] Block layer SCSI generic (bsg) driver version 0.4 loaded 
(major 244)
[    0.665770] io scheduler noop registered
[    0.665782] io scheduler deadline registered
[    0.666104] io scheduler cfq registered (default)
[    0.666115] io scheduler mq-deadline registered
[    0.668661] pinctrl-single 44e10800.pinmux: 142 pins, size 568
[    0.670251] gpio-of-helper ocp:cape-universal: ready
[    0.672937] wkup_m3_ipc 44e11324.wkup_m3_ipc: could not get rproc handle
[    0.675145] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
[    0.678923] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 38, 
base_baud = 3000000) is a 8250
[    0.695842] console [ttyS0] enabled
[    0.697066] 48024000.serial: ttyS2 at MMIO 0x48024000 (irq = 39, 
base_baud = 3000000) is a 8250
[    0.698356] 481a6000.serial: ttyS3 at MMIO 0x481a6000 (irq = 40, 
base_baud = 3000000) is a 8250
[    0.701031] omap_rng 48310000.rng: Random Number Generator ver. 20
[    0.705490] random: fast init done
[    0.705828] random: crng init done
[    0.825090] libphy: Fixed MDIO Bus: probed
[    0.827046] usbcore: registered new interface driver smsc95xx
[    0.827927] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    0.827976] ehci-platform: EHCI generic platform driver
[    0.828185] ehci-omap: OMAP-EHCI Host Controller driver
[    0.828728] usbcore: registered new interface driver usb-storage
[    0.831465] am335x-phy-driver 47401300.usb-phy: 47401300.usb-phy supply 
vcc not found, using dummy regulator
[    0.831640] am335x-phy-driver 47401300.usb-phy: Linked as a consumer to 
regulator.0
[    0.834523] am335x-phy-driver 47401b00.usb-phy: 47401b00.usb-phy supply 
vcc not found, using dummy regulator
[    0.834700] am335x-phy-driver 47401b00.usb-phy: Linked as a consumer to 
regulator.0
[    0.838043] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[    0.838084] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus 
number 1
[    0.838448] usb usb1: New USB device found, idVendor=1d6b, 
idProduct=0002, bcdDevice= 4.19
[    0.838459] usb usb1: New USB device strings: Mfr=3, Product=2, 
SerialNumber=1
[    0.838467] usb usb1: Product: MUSB HDRC host driver
[    0.838474] usb usb1: Manufacturer: Linux 4.19.94-ti-r36 musb-hcd
[    0.838481] usb usb1: SerialNumber: musb-hdrc.1
[    0.839293] hub 1-0:1.0: USB hub found
[    0.839355] hub 1-0:1.0: 1 port detected
[    0.850608] omap_rtc 44e3e000.rtc: already running
[    0.851292] omap_rtc 44e3e000.rtc: registered as rtc0
[    0.852580] i2c /dev entries driver
[    0.853253] Driver for 1-wire Dallas network protocol.
[    0.855645] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60 
sec
[    0.856124] softdog: initialized. soft_noboot=0 soft_margin=60 sec 
soft_panic=0 (nowayout=0)
[    0.857655] cpuidle: enable-method property 'ti,am3352' found operations
[    0.858255] sdhci: Secure Digital Host Controller Interface driver
[    0.858262] sdhci: Copyright(c) Pierre Ossman
[    0.858792] omap_gpio 44e07000.gpio: Could not set line 6 debounce to 
200000 microseconds (-22)
[    0.858803] omap_hsmmc 48060000.mmc: Got CD GPIO
[    0.859422] omap_hsmmc 48060000.mmc: Linked as a consumer to regulator.2
[    0.886849] omap_hsmmc 481d8000.mmc: Linked as a consumer to regulator.2
[    0.910663] omap_hsmmc 47810000.mmc: Linked as a consumer to regulator.1
[    0.951112] mmc1: new high speed MMC card at address 0001
[    0.956478] mmcblk1: mmc1:0001 Q2J54A 3.64 GiB 
[    0.957105] mmcblk1boot0: mmc1:0001 Q2J54A partition 1 2.00 MiB
[    0.957836] mmcblk1boot1: mmc1:0001 Q2J54A partition 2 2.00 MiB
[    0.958197] mmcblk1rpmb: mmc1:0001 Q2J54A partition 3 512 KiB, chardev 
(242:0)
[    0.964213]  mmcblk1: p1
[    1.013738] sdhci-pltfm: SDHCI platform and OF driver helper
[    1.015773] ledtrig-cpu: registered to indicate activity on CPUs
[    1.016492] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
[    1.016740] omap-aes 53500000.aes: will run requests pump with realtime 
priority
[    1.019406] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
[    1.023051] hidraw: raw HID events driver (C) Jiri Kosina
[    1.023419] omap_hsmmc 47810000.mmc: card claims to support voltages 
below defined range
[    1.024017] usbcore: registered new interface driver usbhid
[    1.024024] usbhid: USB HID core driver
[    1.025008] remoteproc remoteproc0: wkup_m3 is available
[    1.030746] gnss: GNSS driver registered with major 239
[    1.037253] mmc2: new high speed SDIO card at address 0001
[    1.038327] wireguard: WireGuard 0.0.20191219 loaded. See 
www.wireguard.com for information.
[    1.038337] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld 
<ja...@zx2c4.com>. All Rights Reserved.
[    1.039586] NET: Registered protocol family 10
[    1.047812] Segment Routing with IPv6
[    1.047947] mip6: Mobile IPv6
[    1.047966] NET: Registered protocol family 17
[    1.048080] Key type dns_resolver registered
[    1.048087] mpls_gso: MPLS GSO support
[    1.048462] ThumbEE CPU extension supported.
[    1.048477] Registering SWP/SWPB emulation handler
[    1.048487] omap_voltage_late_init: Voltage driver support not added
[    1.055664] PM: Cannot get wkup_m3_ipc handle
[    1.061757] registered taskstats version 1
[    1.061767] Loading compiled-in X.509 certificates
[    1.061905] zswap: loaded using pool lzo/zbud
[    1.064948] Btrfs loaded, crc32c=crc32c-generic
[    1.065057] AppArmor: AppArmor sha1 policy hashing enabled
[    1.118881] tps6521x_pwrbutton tps65217-pwrbutton: DMA mask not set
[    1.119706] input: tps65217_pwr_but as 
/devices/platform/ocp/44e0b000.i2c/i2c-0/0-0024/tps65217-pwrbutton/input/input0
[    1.120303] tps65217 0-0024: TPS65217 ID 0xe version 1.2
[    1.121169] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1 
bytes/write
[    1.121373] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[    1.123168] remoteproc remoteproc0: powering up wkup_m3
[    1.123288] remoteproc remoteproc0: Booting fw image 
am335x-pm-firmware.elf, size 217168
[    1.126686] remoteproc remoteproc0: remote processor wkup_m3 is now up
[    1.126705] wkup_m3_ipc 44e11324.wkup_m3_ipc: CM3 Firmware Version = 
0x193
[    1.127064] cpu cpu0: Linked as a consumer to regulator.4
[    1.127169] cpu cpu0: Dropping the link to regulator.4
[    1.127736] cpu cpu0: Linked as a consumer to regulator.4
[    1.129507] PM: bootloader does not support rtc-only!
[    1.130607] omap_rtc 44e3e000.rtc: setting system clock to 2000-01-01 
00:46:28 UTC (946687588)
[    1.131393] ALSA device list:
[    1.131400]   No soundcards found.
[    1.147174] EXT4-fs (mmcblk1p1): mounted filesystem with ordered data 
mode. Opts: (null)
[    1.147281] VFS: Mounted root (ext4 filesystem) readonly on device 179:1.
[    1.148279] devtmpfs: mounted
[    1.154451] Freeing unused kernel memory: 1024K
[    1.155183] Run /sbin/init as init process
[    1.245447] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[    1.395341] usb 1-1: New USB device found, idVendor=05e3, 
idProduct=0610, bcdDevice=32.98
[    1.395358] usb 1-1: New USB device strings: Mfr=0, Product=1, 
SerialNumber=0
[    1.395366] usb 1-1: Product: USB2.0 Hub
[    1.396911] hub 1-1:1.0: USB hub found
[    1.397267] hub 1-1:1.0: 4 ports detected
[    1.506647] systemd[1]: System time before build time, advancing clock.
[    1.628501] systemd[1]: systemd 237 running in system mode. (+PAM +AUDIT 
+SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT 
+GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 
default-hierarchy=hybrid)
[    1.629230] systemd[1]: Detected architecture arm.
[    1.653820] systemd[1]: Set hostname to <beaglebone>.
[    1.689472] usb 1-1.1: new low-speed USB device number 3 using musb-hdrc
[    1.796466] usb 1-1.1: New USB device found, idVendor=413c, 
idProduct=2113, bcdDevice= 1.08
[    1.796483] usb 1-1.1: New USB device strings: Mfr=0, Product=2, 
SerialNumber=0
[    1.796491] usb 1-1.1: Product: Dell KB216 Wired Keyboard
[    1.803948] input: Dell KB216 Wired Keyboard as 
/devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1:1.0/0003:413C:2113.0001/input/input1
[    1.862305] hid-generic 0003:413C:2113.0001: input,hidraw0: USB HID 
v1.11 Keyboard [Dell KB216 Wired Keyboard] on usb-musb-hdrc.1-1.1/input0
[    1.869513] input: Dell KB216 Wired Keyboard System Control as 
/devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1:1.1/0003:413C:2113.0002/input/input2
[    1.929785] input: Dell KB216 Wired Keyboard Consumer Control as 
/devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.1/1-1.1:1.1/0003:413C:2113.0002/input/input3
[    1.930333] hid-generic 0003:413C:2113.0002: input,hidraw1: USB HID 
v1.11 Device [Dell KB216 Wired Keyboard] on usb-musb-hdrc.1-1.1/input1
[    2.009546] usb 1-1.4: new low-speed USB device number 4 using musb-hdrc
[    2.089551] usb 1-1.4: device descriptor read/64, error -32
[    2.285481] usb 1-1.4: device descriptor read/64, error -32
[    2.481472] usb 1-1.4: new low-speed USB device number 5 using musb-hdrc
[    2.561452] usb 1-1.4: device descriptor read/64, error -32
[    2.753470] usb 1-1.4: device descriptor read/64, error -32
[    2.828438] systemd[1]: Created slice User and Session Slice.
[    2.828974] systemd[1]: Reached target Swap.
[    2.829845] systemd[1]: Started Dispatch Password Requests to Console 
Directory Watch.
[    2.831934] systemd[1]: Set up automount Arbitrary Executable File 
Formats File System Automount Point.
[    2.832168] systemd[1]: Reached target Remote File Systems.
[    2.834084] systemd[1]: Created slice System Slice.
[    2.834903] systemd[1]: Listening on /dev/initctl Compatibility Named 
Pipe.
[    2.865868] usb 1-1-port4: attempt power cycle
[    3.469468] usb 1-1.4: new low-speed USB device number 6 using musb-hdrc
[    3.885496] usb 1-1.4: device not accepting address 6, error -32
[    3.989483] usb 1-1.4: new low-speed USB device number 7 using musb-hdrc
[    4.289533] EXT4-fs (mmcblk1p1): re-mounted. Opts: errors=remount-ro
[    4.405419] usb 1-1.4: device not accepting address 7, error -32
[    4.435153] usb 1-1-port4: unable to enumerate USB device
[    4.615016] systemd-journald[144]: Received request to flush runtime 
journal from PID 1
[   13.060804] Bluetooth: Core ver 2.22
[   13.060968] NET: Registered protocol family 31
[   13.060978] Bluetooth: HCI device and connection manager initialized
[   13.061006] Bluetooth: HCI socket layer initialized
[   13.061020] Bluetooth: L2CAP socket layer initialized
[   13.061076] Bluetooth: SCO socket layer initialized
[   14.352453] input: BRLTTY 5.4 Linux Screen Driver Keyboard as 
/devices/virtual/input/input4
[   31.721632] wlan-en-regulator: disabling
[   46.898563] cfg80211: Loading compiled-in X.509 certificates for 
regulatory database
[   46.908629] cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
[   48.838829] wlcore: wl18xx HW: 183x or 180x, PG 2.2 (ROM 0x11)
[   48.872572] wlcore: loaded
[   49.474429] wlcore: PHY firmware version: Rev 8.2.0.0.240
[   49.518365] wlcore: firmware booted (Rev 8.9.0.0.76)
[   49.534132] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   51.541997] wlan0: authenticate with 50:2b:73:2f:60:81
[   51.548875] wlan0: send auth to 50:2b:73:2f:60:81 (try 1/3)
[   51.586392] wlan0: authenticated
[   51.589980] wlan0: associate with 50:2b:73:2f:60:81 (try 1/3)
[   51.599824] wlan0: RX AssocResp from 50:2b:73:2f:60:81 (capab=0xc11 
status=0 aid=9)
[   51.610042] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   51.615269] wlan0: associated
[   51.697657] cryptd: max_cpu_qlen set to 1000
[   51.773890] wlcore: Association completed.
[   62.719318] using random self ethernet address
[   62.719336] using random host ethernet address
[   63.027125] using random self ethernet address
[   63.027142] using random host ethernet address
[   63.193779] usb0: HOST MAC e4:15:f6:f5:8a:0d
[   63.197119] usb0: MAC e4:15:f6:f5:8a:0c
[   63.207435] usb1: HOST MAC e4:15:f6:f5:8a:0f
[   63.208192] usb1: MAC e4:15:f6:f5:8a:10
[   63.359203] IPv6: ADDRCONF(NETDEV_UP): usb0: link is not ready
[   63.649893] configfs-gadget gadget: high-speed config #1: c
[   63.651463] IPv6: ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
[   65.017957] Bluetooth: HCI UART driver ver 2.3
[   65.017977] Bluetooth: HCI UART protocol H4 registered
[   65.019448] Bluetooth: HCI UART protocol LL registered
[   65.019458] Bluetooth: HCI UART protocol ATH3K registered
[   65.019595] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   65.883284] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   65.883300] Bluetooth: BNEP filters: protocol multicast
[   65.884153] Bluetooth: BNEP socket layer initialized
[   66.276579] Bluetooth: RFCOMM TTY layer initialized
[   66.276624] Bluetooth: RFCOMM socket layer initialized
[   66.276682] Bluetooth: RFCOMM ver 1.11
 




Can I further reduce the bootup time with few more second?
At-least console message should get display withing 25 sec.?
Can I change any initialization sequence so that I can get the booting 
message more early ?

Thanks
Karishma Jaiswal  
On Tuesday, May 25, 2021 at 10:30:42 PM UTC+5:30 Dennis Bieber wrote:

> On Mon, 24 May 2021 20:47:42 -0700 (PDT), in
> gmane.comp.hardware.beagleboard.user Karishma Jaiswal
> <karry.jaiswal-re5j...@public.gmane.org> wrote:
>
>
> > not getting the exact reason why * 51.048s dev-mmcblk1p1.device *this is 
> >taking too much time and is there any way that we can reduce it?
> >
>
> Part of that may be tied to the flash memory device itself. Booting
> from eMMC, my BBB came up with:
>
> debian@beaglebone:~$ systemd-analyze blame
> 48.972s generic-board-startup.service
> 48.587s dev-mmcblk1p1.device
> 3.739s nginx.service
>
> But booting from a uSD card (my normal mode to avoid "wearout" of the eMMC)
> showed:
>
> debian@beaglebone:~$ systemd-analyze blame
> 49.889s generic-board-startup.service
> 39.657s dev-mmcblk0p1.device
> 4.126s nginx.service
>
> ... The uSD was 10 seconds faster, even though that is an 8GB uSD card vs
> the 4GB eMMC.
>
> I couldn't find anything confirming if there is some sort of boot time
> fsck being run.
>
> debian@beaglebone:~$ sudo tune2fs -l /dev/mmcblk0p1
> tune2fs 1.44.5 (15-Dec-2018)
> Filesystem volume name: rootfs
> Last mounted on: /
> <SNIP>
> Last mount time: Tue May 25 12:34:35 2021
> Last write time: Tue May 25 12:34:31 2021
> Mount count: 132
> Maximum mount count: -1
> Last checked: Wed Aug 19 21:34:49 2020
> Check interval: 0 (<none>)
> <SNIP>
> debian@beaglebone:~$
>
> Those seem to imply that no fsck is run at boot time.
>
>
>
> -- 
> Dennis L Bieber
>
>

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