全志v3s学习笔记（7）——Buildroot根文件系统构建

一、获取Buildroot

wget https://buildroot.org/downloads/buildroot-2019.08.tar.gz
tar xvf buildroot-2019.08.tar.gz&&cd buildroot-2019.08/
make menuconfig


二、基本配置&＃xff1a;

Target options --->Target Architecture (ARM (little endian)) --->Target Binary Format (ELF) --->Target Architecture Variant (cortex-A7) --->Target ABI (EABIhf) --->Floating point strategy (VFPv4-D16) --->ARM instruction set (ARM) --->


三、编译工具链配置&＃xff1a;

Toolchain --->Toolchain type (External toolchain) --->*** Toolchain External Options ***Toolchain (Custom toolchain) --->Toolchain origin (Pre-installed toolchain) --->(/usr/local/arm/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/) Toolchain path($(ARCH)-linux-gnueabihf) Toolchain prefixExternal toolchain gcc version (4.9.x) --->External toolchain kernel headers series (4.0.x) --->External toolchain C library (glibc/eglibc) --->[*] Toolchain has SSP support? (NEW)[*] Toolchain has RPC support? (NEW)[*] Toolchain has C&＃43;&＃43; support? [*] Enable MMU support (NEW)


查询编译工具链所在位置&＃xff1a;

which arm-linux-gnueabihf-gcc


读取编译工具链里的内核版本&＃xff1a;
编译工具链内核头文件是/usr/local/arm/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include/linux里面的version.h&＃xff0c;可以从中读取内核版本。

cat /usr/local/arm/gcc-linaro-4.9.4-2017.01-x86_64_arm-linux-gnueabihf/arm-linux-gnueabihf/libc/usr/include/linux/version.h


#define LINUX_VERSION_CODE 262144
#define KERNEL_VERSION(a,b,c) (((a) <<16) &＃43; ((b) <<8) &＃43; (c))


262144的二进制为0x400000&＃xff0c;则对应的内核版本号为4.0.0。

四、其他配置&＃xff1a;

还可以设置主机名&＃xff0c;root密码&＃xff0c;配置自己需要的软件包等&＃xff0c;后续再更新。

五、编译&＃xff1a;

make


如果出错则使用make clean然后再编译。
编译完成后&＃xff0c;生成的根文件系统在 output/images/rootfs.tar。

六、烧录

# 查询挂载名
df -h
# 把buildroot产生的rootfs.tar解压到第二分区根目录
sudo tar xvf output/images/rootfs.tar -C /挂载的tf卡第二个分区目录(例&＃xff1a;/media/pjw/9009f48f-8b2b-4b4c-a7f8-21887dd8432b)


七、LOG

如果 ext4 挂载出错请参考&＃xff1a;
【问题解决】报错&＃xff1a;EXT4-fs (mmcblk0p2): couldn‘t mount RDWR because of unsupported optional features (400)

U-Boot SPL 2017.01-rc2-00057-g32ab1804cd-dirty (Feb 22 2021 - 13:37:47)
DRAM: 64 MiB
Trying to boot from MMC1U-Boot 2017.01-rc2-00057-g32ab1804cd-dirty (Feb 22 2021 - 13:37:47 &＃43;0800) Allwinner TechnologyCPU: Allwinner V3s (SUN8I 1681)
Model: Lichee Pi Zero
DRAM: 64 MiB
MMC: SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environmentSetting up a 480x272 lcd console (overscan 0x0)
dotclock: 10000kHz &＃61; 10000kHz: (1 * 3MHz * 20) / 6
In: serial&＃64;01c28000
Out: serial&＃64;01c28000
Err: serial&＃64;01c28000U-Boot 2017.01-rc2-00057-g32ab1804cd-dirty (Feb 22 2021 - 13:37:47 &＃43;0800) Allwinner TechnologyCPU: Allwinner V3s (SUN8I 1681)
Model: Lichee Pi Zero
DRAM: 64 MiB
MMC: SUNXI SD/MMC: 0
*** Warning - bad CRC, using default environmentSetting up a 480x272 lcd console (overscan 0x0)
dotclock: 10000kHz &＃61; 10000kHz: (1 * 3MHz * 20) / 6
In: serial&＃64;01c28000
Out: serial&＃64;01c28000
Err: serial&＃64;01c28000
Net: No ethernet found.
starting USB...
No controllers found
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
reading /boot.scr
290 bytes read in 15 ms (18.6 KiB/s)
## Executing script at 41900000
reading uImage
2434040 bytes read in 134 ms (17.3 MiB/s)
reading script.bin
35280 bytes read in 26 ms (1.3 MiB/s)
## Booting kernel from Legacy Image at 41000000 ...Image Name: Linux-3.4.39Image Type: ARM Linux Kernel Image (uncompressed)Data Size: 2433976 Bytes &＃61; 2.3 MiBLoad Address: 40008000Entry Point: 40008000Verifying Checksum ... OKLoading Kernel Image ... OK
Using machid 0x1029 from environmentStarting kernel ...[ 0.000000] Booting Linux on physical CPU 0
[ 0.000000] Linux version 3.4.39 (pjw&＃64;pjw-virtual-machine) (gcc version 4.9.4 (Linaro GCC 4.9-2017.01) ) #13 Tue Mar 16 14:49:47 CST 2021
[ 0.000000] Initialized persistent memory from 41d20800-41d307ff
[ 0.000000] Kernel command line: console&＃61;ttyS0,115200 panic&＃61;5 rootwait root&＃61;/dev/mmcblk0p2 earlyprintk rw
[ 0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Memory: 64MB &＃61; 64MB total
[ 0.000000] Memory: 30404k/30404k available, 35132k reserved, 0K highmem
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
[ 0.000000] vmalloc : 0xc4800000 - 0xff000000 ( 936 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc4000000 ( 64 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0476000 (4536 kB)
[ 0.000000] .init : 0xc0476000 - 0xc0499000 ( 140 kB)
[ 0.000000] .data : 0xc049a000 - 0xc04de7b0 ( 274 kB)
[ 0.000000] .bss : 0xc04de7d4 - 0xc05793d4 ( 619 kB)
[ 0.000000] NR_IRQS:544
[ 0.000000] Architected local timer running at 24.00MHz.
[ 0.000000] Switching to timer-based delay loop
[ 0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000154] Calibrating delay loop (skipped), value calculated using timer frequency.. 4800.00 BogoMIPS (lpj&＃61;24000000)
[ 0.000175] pid_max: default: 32768 minimum: 301
[ 0.000317] Mount-cache hash table entries: 512
[ 0.000863] CPU: Testing write buffer coherency: ok
[ 0.001126] Setting up static identity map for 0x40351820 - 0x40351878
[ 0.001786] devtmpfs: initialized
[ 0.003426] pinctrl core: initialized pinctrl subsystem
[ 0.003909] NET: Registered protocol family 16
[ 0.004214] DMA: preallocated 128 KiB pool for atomic coherent allocations
[ 0.004277] script_sysfs_init success
[ 0.005031] gpiochip_add: registered GPIOs 0 to 223 on device: sunxi-pinctrl
[ 0.005812] sunxi-pinctrl sunxi-pinctrl: initialized sunXi PIO driver
[ 0.006182] gpiochip_add: registered GPIOs 1024 to 1031 on device: axp-pinctrl
[ 0.006992] persistent_ram: uncorrectable error in header
[ 0.007010] persistent_ram: no valid data in buffer (sig &＃61; 0x55175515)
[ 0.014246] console [ram-1] enabled
[ 0.015058] Not Found clk pll_isp in script
[ 0.015201] Not Found clk pll_video in script
[ 0.015445] Not Found clk pll_ve in script
[ 0.015578] Not Found clk pll_periph0 in script
[ 0.015820] Not Found clk pll_de in script
[ 0.019728] bio: create slab <bio-0> at 0
[ 0.020147] pwm module init!
[ 0.022456] SCSI subsystem initialized
[ 0.022841] usbcore: registered new interface driver usbfs
[ 0.023043] usbcore: registered new interface driver hub
[ 0.023425] usbcore: registered new device driver usb
[ 0.023689] twi_chan_cfg()340 - [twi0] has no twi_regulator.
[ 0.023939] twi_chan_cfg()340 - [twi1] has no twi_regulator.
[ 0.024755] sunxi_i2c_do_xfer()985 - [i2c0] incomplete xfer (status: 0x20, dev addr: 0x34)
[ 0.025018] axp20_board 0-0034: failed reading at 0x03
[ 0.025181] axp20_board: probe of 0-0034 failed with error -70
[ 0.025473] Linux video capture interface: v2.00
[ 0.025695] gpiochip_add: gpios 1024..1028 (axp_pin) failed to register
[ 0.026271] Advanced Linux Sound Architecture Driver Version 1.0.25.
[ 0.027180] Switching to clocksource arch_sys_counter
[ 0.029942] NET: Registered protocol family 2
[ 0.029942] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.029958] TCP established hash table entries: 2048 (order: 2, 16384 bytes)
[ 0.030302] TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.030460] TCP: Hash tables configured (established 2048 bind 2048)
[ 0.030707] TCP: reno registered
[ 0.030847] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.031106] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.031515] NET: Registered protocol family 1
[ 0.031977] standby_mode &＃61; 1.
[ 0.032227] wakeup src cnt is : 3.
[ 0.032381] pmu1_enable &＃61; 0x1.
[ 0.032513] pmux_id &＃61; 0x1.
[ 0.032768] config_pmux_para: script_parser_fetch err.
[ 0.032901] pmu2_enable &＃61; 0x0.
[ 0.033037] add_sys_pwr_dm: get ldo name failed
[ 0.033282] add_sys_pwr_dm: get ldo name failed
[ 0.033414] add_sys_pwr_dm: get ldo name failed
[ 0.033547] add_sys_pwr_dm: get ldo name failed
[ 0.033791] add_sys_pwr_dm: get ldo name failed
[ 0.033924] add_sys_pwr_dm: get ldo name failed
[ 0.034170] add_sys_pwr_dm: get ldo name failed
[ 0.034301] add_sys_pwr_dm: get ldo name failed
[ 0.034434] add_sys_pwr_dm: get ldo name failed
[ 0.034679] add_sys_pwr_dm: get ldo name failed
[ 0.034813] after inited: sys_mask config &＃61; 0x0.
[ 0.035059] dynamic_standby enalbe &＃61; 0x0.
[ 0.035237] sunxi_reg_init enter
[ 0.037303] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.037610] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
[ 0.037940] msgmni has been set to 59
[ 0.039127] io scheduler noop registered
[ 0.039272] io scheduler deadline registered
[ 0.039597] io scheduler cfq registered (default)
[ 0.040195] [DISP]disp_module_init
[ 0.040718] cmdline,disp&＃61;
[ 0.041059] [DISP] disp_get_rotation_sw,line:68:disp 0 out of range? g_rot_sw&＃61;0
[ 0.041438] [DISP] disp_init_connections,line:289:NULL pointer: 0, 0
[ 0.041885] [DISP] display_fb_request,line:1142:invalid paras xres(0), yres(0) bpp(16)
[ 0.043963] [DISP]disp_module_init finish
[ 0.044475] sw_uart_get_devinfo()1503 - uart0 has no uart_regulator.
[ 0.044962] uart0: ttyS0 at MMIO 0x1c28000 (irq &＃61; 32) is a SUNXI
[ 0.045222] sw_uart_pm()890 - uart0 clk is already enable
[ 0.045373] sw_console_setup()1233 - console setup baud 115200 parity n bits 8, flow n
[ 0.158852] console [ttyS0] enabled
[ 0.675763] sunxi_spi_chan_cfg()1376 - [spi-0] has no spi_regulator.
[ 0.683659] spi spi0: master is unqueued, this is deprecated
[ 0.691721] Failed to alloc md5
[ 0.695384] eth0: Use random mac address
[ 0.699919] ehci_hcd: USB 2.0 &＃39;Enhanced&＃39; Host Controller (EHCI) Driver
[ 0.727545] sunxi-ehci sunxi-ehci.1: SW USB2.0 &＃39;Enhanced&＃39; Host Controller (EHCI) Driver
[ 0.736703] sunxi-ehci sunxi-ehci.1: new USB bus registered, assigned bus number 1
[ 0.745355] sunxi-ehci sunxi-ehci.1: irq 104, io mem 0xf1c1a000
[ 0.770040] sunxi-ehci sunxi-ehci.1: USB 0.0 started, EHCI 1.00
[ 0.777408] hub 1-0:1.0: USB hub found
[ 0.781871] hub 1-0:1.0: 1 port detected
[ 0.786745] sunxi-ehci sunxi-ehci.1: remove, state 1
[ 0.792540] usb usb1: USB disconnect, device number 1
[ 0.799241] sunxi-ehci sunxi-ehci.1: USB bus 1 deregistered
[ 0.815682] ohci_hcd: USB 1.1 &＃39;Open&＃39; Host Controller (OHCI) Driver
[ 0.842758] sunxi-ohci sunxi-ohci.1: SW USB2.0 &＃39;Open&＃39; Host Controller (OHCI) Driver
[ 0.851528] sunxi-ohci sunxi-ohci.1: new USB bus registered, assigned bus number 1
[ 0.860098] sunxi-ohci sunxi-ohci.1: irq 105, io mem 0xf1c1a400
[ 0.924609] hub 1-0:1.0: USB hub found
[ 0.928920] hub 1-0:1.0: 1 port detected
[ 0.933902] sunxi-ohci sunxi-ohci.1: remove, state 1
[ 0.939554] usb usb1: USB disconnect, device number 1
[ 0.945852] sunxi-ohci sunxi-ohci.1: USB bus 1 deregistered
[ 0.962399] Initializing USB Mass Storage driver...
[ 0.968012] usbcore: registered new interface driver usb-storage
[ 0.974930] USB Mass Storage support registered.
[ 0.980482] file system registered
[ 0.985936] android_usb gadget: Mass Storage Function, version: 2009/09/11
[ 0.993752] android_usb gadget: Number of LUNs&＃61;1
[ 0.999113] lun0: LUN: removable file: (no medium)
[ 1.005113] android_usb gadget: android_usb ready
[ 1.010611] sunxikbd_script_init: key para not found, used default para.
[ 1.019329] sunxi-rtc sunxi-rtc: rtc core: registered sunxi-rtc as rtc0
[ 1.027845] platform reg-20-cs-dcdc2: Driver reg-20-cs-dcdc2 requests probe deferral
[ 1.036735] platform reg-20-cs-dcdc3: Driver reg-20-cs-dcdc3 requests probe deferral
[ 1.045873] platform reg-20-cs-ldo1: Driver reg-20-cs-ldo1 requests probe deferral
[ 1.054668] platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral
[ 1.063333] platform reg-20-cs-ldo3: Driver reg-20-cs-ldo3 requests probe deferral
[ 1.072086] platform reg-20-cs-ldo4: Driver reg-20-cs-ldo4 requests probe deferral
[ 1.080838] platform reg-20-cs-ldoio0: Driver reg-20-cs-ldoio0 requests probe deferral
[ 1.089753] sunxi_wdt_init_module: sunxi WatchDog Timer Driver v1.0
[ 1.097128] sunxi_wdt_probe: devm_ioremap return wdt_reg 0xf1c20ca0, res->start 0x01c20ca0, res->end 0x01c20cbf
[ 1.108592] sunxi_wdt_probe: initialized (g_timeout&＃61;16s, g_nowayout&＃61;0)
[ 1.116308] wdt_enable, write reg 0xf1c20cb8 val 0x00000000
[ 1.122740] wdt_set_tmout, write 0x000000b0 to mode reg 0xf1c20cb8, actual timeout 16 sec
[ 1.134670] no led_3, ignore it!
[ 1.138413] no led_4, ignore it!
[ 1.142151] no led_5, ignore it!
[ 1.145964] no led_6, ignore it!
[ 1.149665] no led_7, ignore it!
[ 1.155349] usbcore: registered new interface driver usbhid
[ 1.161823] usbhid: USB HID core driver
[ 1.166889] ashmem: initialized
[ 1.170902] logger: created 256K log &＃39;log_main&＃39;
[ 1.176297] logger: created 32K log &＃39;log_events&＃39;
[ 1.181689] logger: created 32K log &＃39;log_radio&＃39;
[ 1.186936] logger: created 32K log &＃39;log_system&＃39;
[ 1.193886] script_get_item return type err, consider it no ldo
[ 1.205023] asoc: sndcodec <-> sunxi-codec mapping ok
[ 1.210933] *******************Try sdio*******************
[ 1.219206] TCP: cubic registered
[ 1.223236] NET: Registered protocol family 17
[ 1.228447] VFP support v0.3: [mmc]: *** sunxi_mci_dump_errinfo(L826): smc 0 err, cmd 5, RTO !!
[ 1.238747] ThumbEE CPU extension supported.
[ 1.243637] *******************Try sd *******************
[ 1.249876] Registering SWP/SWPB emulation handler
[ 1.256276] platform reg-20-cs-ldoio0: Driver reg-20-cs-ldoio0 requests probe deferral
[ 1.265461] platform reg-20-cs-ldo4: Driver reg-20-cs-ldo4 requests probe deferral
[ 1.275387] platform reg-20-cs-ldo3: Driver reg-20-cs-ldo3 requests probe deferral
[ 1.286254] platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral
[ 1.294970] platform reg-20-cs-ldo1: Driver reg-20-cs-ldo1 requests probe deferral
[ 1.303561] platform reg-20-cs-dcdc3: Driver reg-20-cs-dcdc3 requests probe deferral
[ 1.312456] platform reg-20-cs-dcdc2: Driver reg-20-cs-dcdc2 requests probe deferral
[ 1.321378] sunxi-rtc sunxi-rtc: setting system clock to 1970-01-01 00:00:05 UTC (5)
[ 1.331608] ALSA device list:
[ 1.335183] #0: audiocodec
[ 1.339091] Waiting for root device /dev/mmcblk0p2...
[ 1.346106] mmc0: new high speed SDHC card at address b368
[ 1.352906] mmcblk0: mmc0:b368 NCard 29.1 GiB
[ 1.359515] mmcblk0: p1 p2
[ 1.363646] mmcblk mmc0:b368: Card claimed for testing.
[ 1.369591] mmc0:b368: NCard 29.1 GiB
[ 1.374032] platform reg-20-cs-dcdc2: Driver reg-20-cs-dcdc2 requests probe deferral
[ 1.382915] *******************sd init ok*******************
[ 1.389386] platform reg-20-cs-dcdc3: Driver reg-20-cs-dcdc3 requests probe deferral
[ 1.398161] platform reg-20-cs-ldo1: Driver reg-20-cs-ldo1 requests probe deferral
[ 1.406846] platform reg-20-cs-ldo2: Driver reg-20-cs-ldo2 requests probe deferral
[ 1.415525] platform reg-20-cs-ldo3: Driver reg-20-cs-ldo3 requests probe deferral
[ 1.424089] platform reg-20-cs-ldo4: Driver reg-20-cs-ldo4 requests probe deferral
[ 1.432764] platform reg-20-cs-ldoio0: Driver reg-20-cs-ldoio0 requests probe deferral
[ 1.451170] EXT4-fs (mmcblk0p2): couldn&＃39;t mount as ext3 due to feature incompatibilities
[ 1.461330] EXT4-fs (mmcblk0p2): couldn&＃39;t mount as ext2 due to feature incompatibilities
[ 1.518216] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
[ 1.527543] VFS: Mounted root (ext4 filesystem) on device 179:2.
[ 1.549515] devtmpfs: mounted
[ 1.553380] Freeing init memory: 140K
[ 1.751195] EXT4-fs (mmcblk0p2): re-mounted. Opts: data&＃61;ordered
Starting syslogd: OK
Starting klogd: OK
Running sysctl: OK
Initializing random number generator... done.
Starting network: OKWelcome to Buildroot
buildroot login:


参考&＃xff1a;【Linux系统移植】Buildroot 根文件系统构建、荔枝派-buildroot根文件系统