IP communication via the Ethernet port is also possible. But Pi is an interesting toy, so I think you will be wondering how to make serial communication. I used the following devices for this work.
- M/M Jumper cables (20cm)
- MAX3232 RS232 to TTL Converter
- ATEN UC-232A (USB to RS-232 Adapter)
And you can check GPIO expansion of Raspberry Pi 3 Model B+ from the following website. Select the SPECIFICATIONS tab and click the Raspberry Pi 3 Model B+ schematic diagrams hyperlink.
https://www.raspberrypi.org/products/raspberry-pi-3-model-b-plus/
Please, use the M/M jumper cables to connect the MAX3232 to the GPIO. Then use the USB to RS-232 Adapter to connect your MAX3232 to your PC.
Are you ready? Now turn on your Raspberry Pi.
press 'Win + r' and run the CompMgmtLauncher.exe command.
Check your USB to RS-232 adapter and run a terminal program like putty.
If you installed Raspbian on your Pi, enable the Serial Port function in the Raspberry Pi Configuration.
When you run a terminal program, you can see the login screen.
If you installed Ubuntu Server 18.04 on your Pi, first run a terminal program like putty.
When you power on your Pi, you can see the login screen.
U-Boot 2018.07-rc3+dfsg1-0ubuntu1~18.04.1 (Jan 11 2019 - 16:43:27 +0000)
DRAM: 948 MiB RPI 3 Model B+ (0xa020d3) MMC: mmc@7e202000: 0, sdhci@7e300000: 1 Loading Environment from FAT... *** Warning - bad CRC, using default environment Failed (-5) In: serial Out: vidconsole Err: vidconsole Net: No ethernet found. starting USB... USB0: scanning bus 0 for devices... 5 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found ** Bad device usb 0 ** ## Info: input data size = 6 = 0x6 Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... Found U-Boot script /boot.scr 412 bytes read in 2 ms (201.2 KiB/s) ## Executing script at 02400000 23914504 bytes read in 1023 ms (22.3 MiB/s) 18783916 bytes read in 802 ms (22.3 MiB/s) ## Flattened Device Tree blob at 03000000 Booting using the fdt blob at 0x3000000 reserving fdt memory region: addr=0 size=1000 Using Device Tree in place at 0000000003000000, end 0000000003009414 Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 4.15.0-1031-raspi2 (buildd@bos02-arm64-006) (gcc version 7.3.0 (Ubuntu/Linaro 7.3.0-16ubuntu3)) #33-Ubuntu SMP PREEMPT Wed Jan 16 09:52:45 UTC 2019 (Ubuntu 4.15.0-1031.33-raspi2 4.15.18) [ 0.000000] Machine model: Raspberry Pi 3 Model B Plus Rev 1.3 [ 0.000000] cma: Reserved 8 MiB at 0x000000003ac00000 [ 0.000000] random: get_random_bytes called from start_kernel+0xb4/0x41c with crng_init=0 [ 0.000000] percpu: Embedded 25 pages/cpu @ (ptrval) s61464 r8192 d32744 u102400 [ 0.000000] Detected VIPT I-cache on CPU0 [ 0.000000] CPU features: enabling workaround for ARM erratum 845719 [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 238896 [ 0.000000] Kernel command line: 8250.nr_uarts=1 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708_fb.fbswap=1 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 net.ifnames=0 dwc_otg.lpm_enable=0 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait [ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes) [ 0.000000] Memory: 901268K/970752K available (11774K kernel code, 1338K rwdata, 3652K rodata, 6144K init, 1034K bss, 61292K reserved, 8192K cma-reserved) [ 0.000000] Virtual kernel memory layout: [ 0.000000] modules : 0xffff000000000000 - 0xffff000008000000 ( 128 MB) [ 0.000000] vmalloc : 0xffff000008000000 - 0xffff7dffbfff0000 (129022 GB) [ 0.000000] .text : 0x (ptrval) - 0x (ptrval) ( 11776 KB) [ 0.000000] .rodata : 0x (ptrval) - 0x (ptrval) ( 4096 KB) [ 0.000000] .init : 0x (ptrval) - 0x (ptrval) ( 6144 KB) [ 0.000000] .data : 0x (ptrval) - 0x (ptrval) ( 1339 KB) [ 0.000000] .bss : 0x (ptrval) - 0x (ptrval) ( 1035 KB) [ 0.000000] fixed : 0xffff7dfffe7fb000 - 0xffff7dfffec00000 ( 4116 KB) [ 0.000000] PCI I/O : 0xffff7dfffee00000 - 0xffff7dffffe00000 ( 16 MB) [ 0.000000] vmemmap : 0xffff7e0000000000 - 0xffff800000000000 ( 2048 GB maximum) [ 0.000000] 0xffff7ef834000000 - 0xffff7ef834ed0000 ( 14 MB actual) [ 0.000000] memory : 0xffffbe0d00000000 - 0xffffbe0d3b400000 ( 948 MB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1 [ 0.000000] ftrace: allocating 32826 entries in 129 pages [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] Tasks RCU enabled. [ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0 [ 0.000000] arch_timer: cp15 timer(s) running at 19.20MHz (phys). [ 0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x46d987e47, max_idle_ns: 440795202767 ns [ 0.000007] sched_clock: 56 bits at 19MHz, resolution 52ns, wraps every 4398046511078ns [ 0.000226] Console: colour dummy device 80x25 [ 0.000975] console [tty1] enabled [ 0.001015] Calibrating delay loop (skipped), value calculated using timer frequency.. 38.40 BogoMIPS (lpj=76800) [ 0.001059] pid_max: default: 32768 minimum: 301 [ 0.001296] Security Framework initialized [ 0.001321] Yama: becoming mindful. [ 0.001470] AppArmor: AppArmor initialized [ 0.001727] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes) [ 0.001771] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes) [ 0.002848] Disabling memory control group subsystem [ 0.016017] ASID allocator initialised with 32768 entries [ 0.020024] Hierarchical SRCU implementation. [ 0.028074] smp: Bringing up secondary CPUs ... [ 0.048199] Detected VIPT I-cache on CPU1 [ 0.048268] CPU1: Booted secondary processor 0x0000000001 [0x410fd034] [ 0.068272] Detected VIPT I-cache on CPU2 [ 0.068323] CPU2: Booted secondary processor 0x0000000002 [0x410fd034] [ 0.088336] Detected VIPT I-cache on CPU3 [ 0.088381] CPU3: Booted secondary processor 0x0000000003 [0x410fd034] [ 0.088581] smp: Brought up 1 node, 4 CPUs [ 0.088711] SMP: Total of 4 processors activated. [ 0.088737] CPU features: detected feature: 32-bit EL0 Support [ 0.088762] CPU features: detected feature: Kernel page table isolation (KPTI) [ 0.105561] CPU: All CPU(s) started at EL2 [ 0.105614] alternatives: patching kernel code [ 0.107221] devtmpfs: initialized [ 0.117083] evm: security.selinux [ 0.117113] evm: security.SMACK64 [ 0.117131] evm: security.SMACK64EXEC [ 0.117150] evm: security.SMACK64TRANSMUTE [ 0.117169] evm: security.SMACK64MMAP [ 0.117186] evm: security.apparmor [ 0.117204] evm: security.ima [ 0.117221] evm: security.capability [ 0.117955] Enabled cp15_barrier support [ 0.117990] Enabled setend support [ 0.118479] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.118531] futex hash table entries: 1024 (order: 5, 131072 bytes) [ 0.119385] pinctrl core: initialized pinctrl subsystem [ 0.120626] NET: Registered protocol family 16 [ 0.124734] audit: initializing netlink subsys (disabled) [ 0.125085] audit: type=2000 audit(0.124:1): state=initialized audit_enabled=0 res=1 [ 0.125804] cpuidle: using governor ladder [ 0.125988] cpuidle: using governor menu [ 0.126492] vdso: 2 pages (1 code @ (ptrval), 1 data @ (ptrval)) [ 0.126536] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers. [ 0.129731] DMA: preallocated 256 KiB pool for atomic allocations [ 0.129936] Serial: AMBA PL011 UART driver [ 0.132342] bcm2835-mbox 3f00b880.mailbox: mailbox enabled [ 0.132940] uart-pl011 3f201000.serial: could not find pctldev for node /soc/gpio@7e200000/uart0_pins, deferring probe [ 0.165803] bcm2835-dma 3f007000.dma: DMA legacy API manager at (ptrval), dmachans=0x1 [ 0.169119] SCSI subsystem initialized [ 0.169688] usbcore: registered new interface driver usbfs [ 0.169766] usbcore: registered new interface driver hub [ 0.169900] usbcore: registered new device driver usb [ 0.170082] usb_phy_generic phy: phy supply vcc not found, using dummy regulator [ 0.170315] pps_core: LinuxPPS API ver. 1 registered [ 0.170340] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.170390] PTP clock support registered [ 0.170636] EDAC MC: Ver: 3.0.0 [ 0.172700] raspberrypi-firmware soc:firmware: Attached to firmware from 2018-09-10 17:26 [ 0.173694] NetLabel: Initializing [ 0.173717] NetLabel: domain hash size = 128 [ 0.173737] NetLabel: protocols = UNLABELED CIPSOv4 CALIPSO [ 0.173854] NetLabel: unlabeled traffic allowed by default [ 0.174730] clocksource: Switched to clocksource arch_sys_counter [ 0.273766] VFS: Disk quotas dquot_6.6.0 [ 0.273885] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes) [ 0.274124] FS-Cache: Loaded [ 0.274385] CacheFiles: Loaded [ 0.274911] AppArmor: AppArmor Filesystem Enabled [ 0.285808] NET: Registered protocol family 2 [ 0.286510] TCP established hash table entries: 8192 (order: 4, 65536 bytes) [ 0.286648] TCP bind hash table entries: 8192 (order: 5, 131072 bytes) [ 0.286899] TCP: Hash tables configured (established 8192 bind 8192) [ 0.287147] UDP hash table entries: 512 (order: 2, 16384 bytes) [ 0.287212] UDP-Lite hash table entries: 512 (order: 2, 16384 bytes) [ 0.287510] NET: Registered protocol family 1 [ 0.287865] Unpacking initramfs... [ 1.885105] Freeing initrd memory: 18340K [ 1.892103] hw perfevents: enabled with armv8_pmuv3 PMU driver, 7 counters available [ 1.895433] Initialise system trusted keyrings [ 1.895508] Key type blacklist registered [ 1.895750] workingset: timestamp_bits=46 max_order=18 bucket_order=0 [ 1.903661] zbud: loaded [ 1.906603] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 1.915439] Key type asymmetric registered [ 1.915480] Asymmetric key parser 'x509' registered [ 1.915795] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247) [ 1.916000] io scheduler noop registered [ 1.916023] io scheduler deadline registered (default) [ 1.916234] io scheduler cfq registered [ 1.916257] io scheduler kyber registered [ 1.919777] BCM2708FB: allocated DMA memory fac40000 [ 1.919841] BCM2708FB: allocated DMA channel 0 @ (ptrval) [ 1.923705] Console: switching to colour frame buffer device 82x26 [ 1.927705] Serial: 8250/16550 driver, 1 ports, IRQ sharing enabled [ 1.930811] bcm2835-rng 3f104000.rng: hwrng registered [ 1.932471] vc-mem: phys_addr:0x00000000 mem_base=0x3ec00000 mem_size:0x40000000(1024 MiB) [ 1.936040] gpiomem-bcm2835 3f200000.gpiomem: Initialised: Registers at 0x3f200000 [ 1.939459] cacheinfo: Unable to detect cache hierarchy for CPU 0 [ 2.195267] loop: module loaded [ 2.197604] Loading iSCSI transport class v2.0-870. [ 2.200239] spi-bcm2835 3f204000.spi: could not get clk: -517 [ 2.202243] libphy: Fixed MDIO Bus: probed [ 2.203860] usbcore: registered new interface driver smsc95xx [ 2.205412] dwc_otg: version 3.00a 10-AUG-2012 (platform bus) [ 2.420145] Core Release: 2.80a [ 2.421619] Setting default values for core params [ 2.423159] Finished setting default values for core params [ 2.637600] Using Buffer DMA mode [ 2.639163] Periodic Transfer Interrupt Enhancement - disabled [ 2.640755] Multiprocessor Interrupt Enhancement - disabled [ 2.642372] OTG VER PARAM: 0, OTG VER FLAG: 0 [ 2.643981] Dedicated Tx FIFOs mode [ 2.645951] WARN::dwc_otg_hcd_init:1046: FIQ DMA bounce buffers: virt = 0x08221000 dma = 0xfac54000 len=9024 [ 2.649170] FIQ FSM acceleration enabled for : [ 2.649170] Non-periodic Split Transactions [ 2.649170] Periodic Split Transactions [ 2.649170] High-Speed Isochronous Endpoints [ 2.649170] Interrupt/Control Split Transaction hack enabled [ 2.656464] WARN::hcd_init_fiq:486: MPHI regs_base at 0x0804d000 [ 2.657975] dwc_otg 3f980000.usb: DWC OTG Controller [ 2.659435] dwc_otg 3f980000.usb: new USB bus registered, assigned bus number 1 [ 2.660918] dwc_otg 3f980000.usb: irq 15, io mem 0x00000000 [ 2.662369] Init: Port Power? op_state=1 [ 2.663771] Init: Power Port (0) [ 2.665334] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 [ 2.666785] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 2.668212] usb usb1: Product: DWC OTG Controller [ 2.669608] usb usb1: Manufacturer: Linux 4.15.0-1031-raspi2 dwc_otg_hcd [ 2.671050] usb usb1: SerialNumber: 3f980000.usb [ 2.673135] hub 1-0:1.0: USB hub found [ 2.674541] hub 1-0:1.0: 1 port detected [ 2.677090] usbcore: registered new interface driver usb-storage [ 2.678921] mousedev: PS/2 mouse device common for all mice [ 2.680610] i2c /dev entries driver [ 2.683405] bcm2835-wdt 3f100000.watchdog: Broadcom BCM2835 watchdog timer [ 2.685139] device-mapper: uevent: version 1.0.3 [ 2.686927] device-mapper: ioctl: 4.37.0-ioctl (2017-09-20) initialised: dm-devel@redhat.com [ 2.689960] bcm2835-cpufreq: min=600000 max=1400000 [ 2.693908] sdhci: Secure Digital Host Controller Interface driver [ 2.694581] sdhci: Copyright(c) Pierre Ossman [ 2.695456] mmc-bcm2835 3f300000.mmc: could not get clk, deferring probe [ 2.696294] sdhost-bcm2835 3f202000.mmc: could not get clk, deferring probe [ 2.697022] Error: Driver 'sdhost-bcm2835' is already registered, aborting... [ 2.697734] sdhci-pltfm: SDHCI platform and OF driver helper [ 2.699653] ledtrig-cpu: registered to indicate activity on CPUs [ 2.700451] hidraw: raw HID events driver (C) Jiri Kosina [ 2.701267] usbcore: registered new interface driver usbhid [ 2.701980] usbhid: USB HID core driver [ 2.703121] vchiq: vchiq_init_state: slot_zero = (ptrval), is_master = 0 [ 2.706479] Initializing XFRM netlink socket [ 2.707597] NET: Registered protocol family 10 [ 2.719860] Segment Routing with IPv6 [ 2.720679] NET: Registered protocol family 17 [ 2.721472] Key type dns_resolver registered [ 2.722820] registered taskstats version 1 [ 2.723544] Loading compiled-in X.509 certificates [ 2.731783] Loaded X.509 cert 'Build time autogenerated kernel key: 86b86cff859425394d64d593c308fb1bb4958e37' [ 2.733270] zswap: loaded using pool lzo/zbud [ 2.773501] Key type big_key registered [ 2.774209] Key type trusted registered [ 2.805576] Key type encrypted registered [ 2.806226] AppArmor: AppArmor sha1 policy hashing enabled [ 2.806872] ima: No TPM chip found, activating TPM-bypass! (rc=-19) [ 2.807504] ima: Allocated hash algorithm: sha1 [ 2.808165] evm: HMAC attrs: 0x1 [ 2.812103] uart-pl011 3f201000.serial: cts_event_workaround enabled [ 2.812810] 3f201000.serial: ttyAMA0 at MMIO 0x3f201000 (irq = 72, base_baud = 0) is a PL011 rev2 [ 2.815159] console [ttyS0] disabled [ 2.815794] 3f215040.serial: ttyS0 at MMIO 0x0 (irq = 151, base_baud = 31250000) is a 16550 [ 2.887509] Indeed it is in host mode hprt0 = 00021501 [ 2.969513] random: fast init done [ 3.078732] usb 1-1: new high-speed USB device number 2 using dwc_otg [ 3.078840] Indeed it is in host mode hprt0 = 00001101 [ 3.298325] usb 1-1: New USB device found, idVendor=0424, idProduct=2514 [ 3.298330] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 3.302554] hub 1-1:1.0: USB hub found [ 3.306468] hub 1-1:1.0: 4 ports detected [ 3.618728] usb 1-1.1: new high-speed USB device number 3 using dwc_otg [ 3.753596] usb 1-1.1: New USB device found, idVendor=0424, idProduct=2514 [ 3.753600] usb 1-1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 3.756936] hub 1-1.1:1.0: USB hub found [ 3.763770] hub 1-1.1:1.0: 3 ports detected [ 4.070730] usb 1-1.1.2: new full-speed USB device number 4 using dwc_otg [ 4.084300] console [ttyS0] enabled [ 4.090506] mmc-bcm2835 3f300000.mmc: mmc_debug:0 mmc_debug2:0 [ 4.097133] mmc-bcm2835 3f300000.mmc: DMA channel allocated [ 4.143273] sdhost: log_buf @ (ptrval) (fac53000) [ 4.166833] mmc1: queuing unknown CIS tuple 0x80 (2 bytes) [ 4.174544] mmc1: queuing unknown CIS tuple 0x80 (3 bytes) [ 4.185026] usb 1-1.1.2: New USB device found, idVendor=0557, idProduct=2022 [ 4.192835] usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 4.201686] usb 1-1.1.2: Product: ATEN USB to Serial Bridge [ 4.208018] usb 1-1.1.2: Manufacturer: Prolific Technology Inc. [ 4.208030] mmc1: queuing unknown CIS tuple 0x80 (3 bytes) [ 4.223131] mmc1: queuing unknown CIS tuple 0x80 (7 bytes) [ 4.238732] mmc0: sdhost-bcm2835 loaded - DMA enabled (>1) [ 4.245575] hctosys: unable to open rtc device (rtc0) [ 4.251596] of_cfs_init [ 4.254748] of_cfs_init: OK [ 4.265824] Freeing unused kernel memory: 6144K [ 4.271593] Checked W+X mappings: passed, no W+X pages found [ 4.313590] mmc0: host does not support reading read-only switch, assuming write-enable [ 4.326100] mmc0: new high speed SDHC card at address 0001 [ 4.332820] bounce: isa pool size: 16 pages [ 4.332980] mmcblk0: mmc0:0001 EB1QT 29.8 GiB [ 4.344217] mmcblk0: p1 p2 [ 4.345862] random: systemd-udevd: uninitialized urandom read (16 bytes read) [ 4.346283] random: systemd-udevd: uninitialized urandom read (16 bytes read) [ 4.346301] random: systemd-udevd: uninitialized urandom read (16 bytes read) [ 4.380280] mmc1: new high speed SDIO card at address 0001 [ 4.458807] usb 1-1.1.1: new high-speed USB device number 5 using dwc_otg [ 4.567213] usb 1-1.1.1: New USB device found, idVendor=0424, idProduct=7800 [ 4.575205] usb 1-1.1.1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 5.171312] random: crng init done [ 5.175562] random: 7 urandom warning(s) missed due to ratelimiting [ 6.774838] raid6: int64x1 gen() 394 MB/s [ 6.842735] raid6: int64x1 xor() 374 MB/s [ 6.902755] raid6: int64x2 gen() 695 MB/s [ 6.962737] raid6: int64x2 xor() 599 MB/s [ 7.022755] raid6: int64x4 gen() 1182 MB/s [ 7.082717] raid6: int64x4 xor() 841 MB/s [ 7.142740] raid6: int64x8 gen() 1107 MB/s [ 7.202731] raid6: int64x8 xor() 845 MB/s [ 7.262726] raid6: neonx1 gen() 724 MB/s [ 7.322729] raid6: neonx1 xor() 776 MB/s [ 7.382740] raid6: neonx2 gen() 1237 MB/s [ 7.438795] raid6: neonx2 xor() 1261 MB/s [ 7.494734] raid6: neonx4 gen() 1718 MB/s [ 7.550720] raid6: neonx4 xor() 1619 MB/s [ 7.606747] raid6: neonx8 gen() 1838 MB/s [ 7.662728] raid6: neonx8 xor() 1706 MB/s [ 7.673387] raid6: using algorithm neonx8 gen() 1838 MB/s [ 7.685559] raid6: .... xor() 1706 MB/s, rmw enabled [ 7.697090] raid6: using neon recovery algorithm [ 7.711290] xor: measuring software checksum speed [ 7.762721] 8regs : 2661.000 MB/sec [ 7.810745] 8regs_prefetch: 2372.000 MB/sec [ 7.858715] 32regs : 3265.000 MB/sec [ 7.906720] 32regs_prefetch: 2756.000 MB/sec [ 7.917133] xor: using function: 32regs (3265.000 MB/sec) [ 7.931307] async_tx: api initialized (async) [ 8.174689] Btrfs loaded, crc32c=crc32c-generic [ 8.421984] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null) [ 9.100924] systemd[1]: System time before build time, advancing clock. [ 9.184216] ip_tables: (C) 2000-2006 Netfilter Core Team [ 9.228838] 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) [ 9.281781] systemd[1]: Detected architecture arm64. [ 9.336056] systemd[1]: Set hostname to <ubuntu>. [ 10.043769] systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ 10.079596] systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ 10.117936] systemd[1]: Created slice System Slice. [ 10.139157] systemd[1]: Listening on Journal Socket (/dev/log). [ 10.161718] systemd[1]: Listening on fsck to fsckd communication Socket. [ 10.185138] systemd[1]: Listening on Journal Audit Socket. [ 10.207609] systemd[1]: Listening on LVM2 poll daemon socket. [ 10.344853] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) [ 10.652307] systemd-journald[662]: Received request to flush runtime journal from PID 1 [ 10.750910] systemd-journald[662]: File /var/log/journal/28fb42d8c3774f5d9b986c70313d674c/system.journal corrupted or uncleanly shut down, renaming and replacing. [ 10.753442] iscsi: registered transport (tcp) [ 11.963090] brcmfmac: brcmf_fw_map_chip_to_name: using brcm/brcmfmac43455-sdio.bin for chip 0x004345(17221) rev 0x000006 [ 12.256487] brcmfmac: brcmf_c_process_clm_blob: no clm_blob available(err=-2), device may have limited channels available [ 14.303744] brcmfmac: brcmf_c_preinit_dcmds: Firmware version = wl0: Mar 1 2015 07:29:38 version 7.45.18 (r538002) FWID 01-6a2c8ad4 Ubuntu 18.04.2 LTS ubuntu ttyS0 ubuntu login: ubuntu Password: Last login: Sun Mar 10 10:50:58 UTC 2019 on ttyS0 Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.15.0-1031-raspi2 aarch64) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage System information as of Sun Mar 10 12:21:37 UTC 2019 System load: 0.0 Processes: 105 Usage of /: 5.4% of 29.06GB Users logged in: 0 Memory usage: 15% IP address for eth0: 172.20.15.4 Swap usage: 0% * Ubuntu's Kubernetes 1.14 distributions can bypass Docker and use containerd directly, see https://bit.ly/ubuntu-containerd or try it now with snap install microk8s --channel=1.14/beta --classic Get cloud support with Ubuntu Advantage Cloud Guest: http://www.ubuntu.com/business/services/cloud 48 packages can be updated. 29 updates are security updates. ubuntu@ubuntu:~$ df -h Filesystem Size Used Avail Use% Mounted on udev 441M 0 441M 0% /dev tmpfs 92M 4.3M 87M 5% /run /dev/mmcblk0p2 30G 1.6G 27G 6% / tmpfs 457M 0 457M 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 457M 0 457M 0% /sys/fs/cgroup /dev/mmcblk0p1 253M 54M 199M 22% /boot/firmware tmpfs 92M 0 92M 0% /run/user/1000 |
Congratulations. Now you can make the serial console work on your Raspberry Pi. enjoy your Pi. :D
See you next. Thank you.
I thought this was a pretty interesting read when it comes to this topic. Thank you
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