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今日最后一贴 高通平台上的amss 环境搭建发完我自己去研究了&&欢迎大家有问题提出来&&即使你提出来我也不一定会解答 呵呵 大家一起研究研究
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没人沙发，我来
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地板也来一个
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支持支持！！！！！！！！
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再支持一个，顶顶
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虽然不懂，纯支持一个
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互联网出版许可证 新出网证（京）字051号用qemu搭建aarch64学习环境
时间： 22:19:53
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标签：&&&&&&&&&&&&&&&&&&&&&&&&&&&作者信息
作者： 彭东林
主机： Ubuntu14.04 64位版本
模拟器：Qemu-2.8.0
Linux内核版本： Linux-4.10
Busybox版本：busybox-1.24.2
工具链：&gcc-linaro-aarch64-linux-gnu-4.9-2014.07_linux
随着aarch64在手机和服务器上面的普及，我们越来越有必要学习一下aarch64的知识，但是目前市面上面还没有做的很好的aarch64的开发板，之前我买了一块NanoPC-T3，用的SoC是Samsung的6818，是cortex-a53 八核架构，但是商家给的资料全都是32位的（armv8兼容aarch32和aarch64），他们说Samsung没有给64位的BSP资料，所以只能等待Samsung来解决，这样的结果令我很失望，偶然看到网上有人用Qemu模拟器来搭建aarch64的运行环境，让我看到了曙光，所以从网上搜刮了一下资料，为后人铺路。
下面涉及到的软件包可以到下载。
具备的功能
模拟一个cortex-a53 双核或者单核的环境，同时可以跟Host通信，以便于共享一些文件，为了简单起见，根文件系统使用的是ramdisk格式。
1、编译Qemu模拟器
首先到下载最新的模拟器，我下到的是，也可以下载
1 tar -xf qemu-2.8.0.tar.xz
2 cd qemu-2.8.0/
3 mkdir build
4 cd build/
5 # 需要安装这个软件包，因为我们使能了--enable-virtfs， 否则configure的时候会失败
6 sudo apt-get install libcap-dev
7 ../configure --target-list=arm-softmmu,i386-softmmu,x86_64-softmmu,aarch64-linux-user,arm-linux-user,i386-linux-user,x86_64-linux-user,aarch64-softmmu --audio-drv-list=alsa --enable-virtfs
8 make -j8
9 sudo make install
然后就可以使用我们下面会用到的qemu-system-aarch64工具了。
2、下载工具链
登录这个网址：
其中有一些注意事项：
aarch64-linux-gnu-gcc是由&Linaro&公司基于GCC推出的的ARM交叉编译工具。可用于交叉编译ARMv8 64位目标中的裸机程序、u-boot、Linux kernel、filesystem和App应用程序。aarch64-linux-gnu-gcc交叉编译器必须安装在64为主机上，才能编译目标代码。
我们这里使用的是最新的Linux解压版：
3、下载编译最新的Linux内核
登录& &下载最新的Linux版本，目前最新的是。&
下面是编译下面要用的kernel的命令：
1 #!/bin/bash
2 cross_compile=/home/pengdonglin/src/qemu/aarch64/gcc-linaro-aarch64-linux-gnu-4.9-2014.07_linux/bin/aarch64-linux-gnu-
3 make CROSS_COMPILE=$cross_compile ARCH=arm64 O=./out_aarch64 defconfig
4 make CROSS_COMPILE=$cross_compile ARCH=arm64 O=./out_aarch64 menuconfig
5 make CROSS_COMPILE=$cross_compile ARCH=arm64 O=./out_aarch64 Image -j4
由于下面要用到ramdisk的启动方式，需要在kernel配置中支持：
1 General setup
----& [*] Initial RAM filesystem and RAM disk (initramfs/initrd) support
4 Device Drivers
[*] Block devices
RAM block device support
(65536) Default RAM disk size (kbytes)
这里我们给ramdisk设置的默认大小是64MB，不能比后面我们实际生成的ramdisk.img的size小。
此外，由于我们还需要支持NFS挂在以及通过9p的方式跟Host共享文件，这些也需要在kernel中进行相应的配置。（默认配置已经支持了）
关于Qemu的9p方式实现跟Host的目录共享可以参考 ：&& &&
这样就有了我们下面要用到的内核镜像Image。
4、制作根文件系统
登录下载要用的busybox版本，这里我下的是
要设置的不多：
执行make menuconfig，配置下面几项：
1 Build Options
[*] Build BusyBox as a static binary (no shared libs)
(/home/pengdonglin/src/qemu/aarch64/gcc-linaro-aarch64-linux-gnu-4.9-2014.07_linux/bin/aarch64-linux-gnu-) Cross Compiler prefix
然后执行make && make install命令
下面制作启动用的ramdisk，我把这个过程写成了脚本，如下：
1 #!/bin/bash
2 sudo rm -rf rootfs
3 sudo rm -rf tmpfs
4 sudo rm -rf ramdisk*
5 sudo mkdir rootfs
6 sudo cp ../busybox-1.24.2/_install/*
rootfs/ -raf
7 sudo mkdir -p rootfs/proc/
8 sudo mkdir -p rootfs/sys/
9 sudo mkdir -p rootfs/tmp/
10 sudo mkdir -p rootfs/root/
11 sudo mkdir -p rootfs/var/
12 sudo mkdir -p rootfs/mnt/
13 sudo cp etc rootfs/ -arf
14 sudo mkdir -p rootfs/lib
15 sudo cp -arf ../gcc-linaro-aarch64-linux-gnu-4.9-2014.07_linux/aarch64-linux-gnu/libc/lib/aarch64-linux-gnu/* rootfs/lib/
16 sudo rm rootfs/lib/*.a
17 sudo ../gcc-linaro-aarch64-linux-gnu-4.9-2014.07_linux/bin/aarch64-linux-gnu-strip rootfs/lib/*
18 sudo mkdir -p rootfs/dev/
19 sudo mknod rootfs/dev/tty1 c 4 1
20 sudo mknod rootfs/dev/tty2 c 4 2
21 sudo mknod rootfs/dev/tty3 c 4 3
22 sudo mknod rootfs/dev/tty4 c 4 4
23 sudo mknod rootfs/dev/console c 5 1
24 sudo mknod rootfs/dev/null c 1 3
25 sudo dd if=/dev/zero of=ramdisk bs=1M count=16
26 sudo mkfs.ext4 -F ramdisk
27 sudo mkdir -p tmpfs
28 sudo mount -t ext4 ramdisk ./tmpfs/
29 sudo cp -raf rootfs/*
30 sudo umount tmpfs
31 sudo gzip --best -c ramdisk & ramdisk.gz
32 sudo mkimage -n "ramdisk" -A arm -O linux -T ramdisk -C gzip -d ramdisk.gz ramdisk.img
制作ramdisk用到的文件到下载。
5、Qemu支持网络
请参考博客：
共享目录的方法：
1 sudo qemu-system-aarch64
-cpu cortex-a53
-kernel ./linux-4.10/out_aarch64/arch/arm64/boot/Image
-nographic
-append "root=/dev/ram0 rw rootfstype=ext4 console=ttyAMA0 init=/linuxrc ignore_loglevel"
-initrd ./rootfs/ramdisk.img 10
-fsdev local,security_model=passthrough,id=fsdev0,path=/nfsroot 11
-device virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=hostshare
&支持网络的启动：
1 sudo qemu-system-aarch64
-cpu cortex-a53
-kernel ./linux-4.10/out_aarch64/arch/arm64/boot/Image
-nographic
-append "root=/dev/ram0 rw rootfstype=ext4 console=ttyAMA0 init=/linuxrc ignore_loglevel"
-initrd ./rootfs/ramdisk.img 10
-net nic,vlan=0 -net tap,vlan=0,ifname=tap0
当然，也可以将上面的两种方是合在一起：
1 sudo qemu-system-aarch64
-cpu cortex-a53
-kernel ./linux-4.10/out_aarch64/arch/arm64/boot/Image
-nographic
-append "root=/dev/ram0 rw rootfstype=ext4 console=ttyAMA0 init=/linuxrc ignore_loglevel"
-initrd ./rootfs/ramdisk.img 10
-net nic,vlan=0 -net tap,vlan=0,ifname=tap0 11
-fsdev local,security_model=passthrough,id=fsdev0,path=/nfsroot 12
-device virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=hostshare
我们需要在Host上面先指定一个共享目录，&比如就用/nfsroot，如果用nfs挂载的话还需要在/etc/export中进行相应的配置。
mount -t nfs -o nolock 172.16.14.203:/nfsroot /mnt
mount -t 9p -o trans=virtio,version=9p2000.L hostshare /mnt2
这样就实现了跟Host的文件共享， 推荐用9p的方式，这个更稳定一些。
下面是启动信息：
1 $./run_all.sh
2 sudo tunctl -u root -t tap0
3 TUNSETIFF: Device or resource busy
4 sudo ifconfig tap0 0.0.0.0 promisc up
5 sudo brctl addif br0 tap0
6 brctl show
7 bridge name
STP enabled
interfaces
8000.2a30f59a82a1
10 docker0
8000.02429cade970
0.000000] Booting Linux on physical CPU 0x0
0.000000] Linux version 4.10.0 () (gcc version 4.9.1
(prerelease) (crosstool-NG linaro-1.13.1-4.9-2014.07 - Linaro GCC 4.9-2014.06) ) #2 SMP PREEMPT Wed Feb 22 19:39:00 CST 2017
0.000000] Boot CPU: AArch64 Processor [410fd034]
0.000000] debug: ignoring loglevel setting.
0.000000] efi: Getting EFI parameters from FDT:
0.000000] efi: UEFI not found.
0.000000] cma: Reserved 16 MiB at 0x0000
0.000000] On node 0 totalpages: 1048576
DMA zone: 12288 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 786432 pages, LIFO batch:31
Normal zone: 4096 pages used for memmap
Normal zone: 262144 pages, LIFO batch:31
0.000000] psci: probing for conduit method from DT.
0.000000] psci: PSCIv0.2 detected in firmware.
0.000000] psci: Using standard PSCI v0.2 function IDs
0.000000] psci: Trusted OS migration not required
0.000000] percpu: Embedded 21 pages/cpu @ffff8000fffc r u86016
0.000000] pcpu-alloc: s4 d2 alloc=21*4096
0.000000] pcpu-alloc: [0] 0 [0] 1
0.000000] Detected VIPT I-cache on CPU0
0.000000] CPU features: enabling workaround for ARM erratum 845719
0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 1032192
0.000000] Kernel command line: root=/dev/ram0 rw rootfstype=ext4 console=ttyAMA0 init=/linuxrc ignore_loglevel
0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes)
0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes)
0.000000] software IO TLB [mem 0xfafff000-0xfefff000] (64MB) mapped at [ffff8000bafff000-ffff8000beffefff]
0.000000] Memory: 94304K available (8508K kernel code, 946K rwdata, 3852K rodata, 1024K init, 393K bss, 155196K reserved, 16384K cma-reserved)
0.000000] Virtual kernel memory layout:
modules : 0xffff - 0xffff
vmalloc : 0xffff - 0xffff7dffbfff0000
(129022 GB)
.text : 0xffff - 0xffff0
.rodata : 0xffff0 - 0xffff00
.init : 0xffff00 - 0xffff00
.data : 0xffff00 - 0xffffca00
.bss : 0xffffca00 - 0xffff000008eeee50
: 0xffff7dfffe7fd000 - 0xffff7dfffec00000
PCI I/O : 0xffff7dfffee00000 - 0xffff7dffffe00000
vmemmap : 0xffff7e - 0xffff
2048 GB maximum)
0xffff7e - 0xffff7e
64 MB actual)
: 0xffff - 0xffff
0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
0.000000] Preemptible hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 64.
RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=2.
0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=64, nr_cpu_ids=2
0.000000] NR_IRQS:64 nr_irqs:64 0
0.000000] GICv2m: range[mem 0x-0x08020fff], SPI[80:143]
0.000000] arm_arch_timer: WARNING: Invalid trigger for IRQ3, assuming level low
0.000000] arm_arch_timer: WARNING: Please fix your firmware
0.000000] arm_arch_timer: Architected cp15 timer(s) running at 62.50MHz (virt).
0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1cd42e208c, max_idle_ns:
0.000107] sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 6ns
0.002457] Console: colour dummy device 80x25
0.002953] Calibrating delay loop (skipped), value calculated using timer frequency.. 125.00 BogoMIPS (lpj=250000)
0.005003] pid_max: default: 32768 minimum: 301
0.005495] Security Framework initialized
0.005796] Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
0.005823] Mountpoint-cache hash table entries: 8192 (order: 4, 65536 bytes)
0.033688] ASID allocator initialised with 65536 entries
0.055888] EFI services will not be available.
0.070508] smp: Bringing up secondary CPUs ...
0.103718] Detected VIPT I-cache on CPU1
0.104137] CPU1: Booted secondary processor [410fd034]
0.105447] smp: Brought up 1 node, 2 CPUs
0.105484] SMP: Total of 2 processors activated.
0.105544] CPU features: detected feature: 32-bit EL0 Support
0.106390] CPU: All CPU(s) started at EL1
0.106993] alternatives: patching kernel code
0.117571] devtmpfs: initialized
0.125123] DMI not present or invalid.
0.125968] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 0000 ns
0.126043] futex hash table entries: 512 (order: 4, 65536 bytes)
0.129131] pinctrl core: initialized pinctrl subsystem
0.140179] NET: Registered protocol family 16
0.174101] cpuidle: using governor menu
0.174984] vdso: 2 pages (1 code @ ffff0, 1 data @ ffff00)
0.175144] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
0.179636] DMA: preallocated 256 KiB pool for atomic allocations
0.180866] Serial: AMBA PL011 UART driver
0.217051] 9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 39, base_baud = 0) is a PL011 rev1
0.229660] console [ttyAMA0] enabled
0.234380] irq: type mismatch, failed to map hwirq-27 for /intc!
0.332166] HugeTLB registered 2 MB page size, pre-allocated 0 pages
0.346761] ACPI: Interpreter disabled.
0.351316] vgaarb: loaded
0.352841] SCSI subsystem initialized
0.354129] libata version 3.00 loaded.
0.356211] usbcore: registered new interface driver usbfs
0.356660] usbcore: registered new interface driver hub
0.357155] usbcore: registered new device driver usb
0.363521] pps_core: LinuxPPS API ver. 1 registered
0.363666] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti &&
0.364073] PTP clock support registered
0.365464] dmi: Firmware registration failed.
0.366899] Advanced Linux Sound Architecture Driver Initialized.
0.376396] clocksource: Switched to clocksource arch_sys_counter
0.377906] VFS: Disk quotas dquot_6.6.0
0.379184] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
0.381159] pnp: PnP ACPI: disabled
0.410723] NET: Registered protocol family 2
0.425569] TCP established hash table entries: 32768 (order: 6, 262144 bytes)
0.426069] TCP bind hash table entries: 32768 (order: 7, 524288 bytes)
0.426727] TCP: Hash tables configured (established 32768 bind 32768)
0.427411] UDP hash table entries: 2048 (order: 4, 65536 bytes)
0.427736] UDP-Lite hash table entries: 2048 (order: 4, 65536 bytes)
0.429815] NET: Registered protocol family 1
0.432139] RPC: Registered named UNIX socket transport module.
0.432824] RPC: Registered udp transport module.
0.432964] RPC: Registered tcp transport module.
0.433091] RPC: Registered tcp NFSv4.1 backchannel transport module.
0.433311] PCI: CLS 0 bytes, default 128
0.436037] Trying to unpack rootfs image as initramfs...
0.440854] rootfs image is not initramfs (no cpio magic); looks like an initrd
0.453369] Freeing initrd memory: 2400K
0.455311] kvm [1]: HYP mode not available
0.466090] audit: initializing netlink subsys (disabled)
0.469328] audit: type=2000 audit(0.452:1): initialized
0.475039] workingset: timestamp_bits=46 max_order=20 bucket_order=0
0.518138] squashfs: version 4.0 (2009/01/31) Phillip Lougher
0.523010] NFS: Registering the id_resolver key type
0.523578] Key type id_resolver registered
0.523654] Key type id_legacy registered
0.523791] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
0.524960] 9p: Installing v9fs 9p2000 file system support
0.534620] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
0.534832] io scheduler noop registered
0.535541] io scheduler cfq registered (default)
0.557194] pl061_gpio 9030000.pl061: PL061 GPIO chip @0x0000 registered
0.564858] OF: PCI: host bridge /pcie@ ranges:
0.565315] OF: PCI:
IO 0x3eff0000..0x3effffff -& 0x
0.565681] OF: PCI:
MEM 0x..0x3efeffff -& 0x
0.565850] OF: PCI:
MEM 0x..0xffffffffff -& 0x
0.566651] pci-host-generic 3f000000.pcie: ECAM at [mem 0x3f000000-0x3fffffff] for [bus 00-0f]
0.568716] pci-host-generic 3f000000.pcie: PCI host bridge to bus 0000:00
0.569014] pci_bus 0000:00: root bus resource [bus 00-0f]
0.569196] pci_bus 0000:00: root bus resource [io
0x0000-0xffff]
0.569343] pci_bus 0000:00: root bus resource [mem 0x-0x3efeffff]
0.569501] pci_bus 0000:00: root bus resource [mem 0x-0xffffffffff]
0.570327] pci 0000:00:00.0: [1b36:0008] type 00 class 0x060000
0.573729] pci 0000:00:01.0: [1af4:1000] type 00 class 0x020000
0.574091] pci 0000:00:01.0: reg 0x10: [io
0x0000-0x001f]
0.574263] pci 0000:00:01.0: reg 0x14: [mem 0x-0x00000fff]
0.574487] pci 0000:00:01.0: reg 0x20: [mem 0x-0x00003fff 64bit pref]
0.574667] pci 0000:00:01.0: reg 0x30: [mem 0x-0x0003ffff pref]
0.575624] pci 0000:00:02.0: [1af4:1009] type 00 class 0x000200
0.575801] pci 0000:00:02.0: reg 0x10: [io
0x0000-0x003f]
0.575945] pci 0000:00:02.0: reg 0x14: [mem 0x-0x00000fff]
0.576117] pci 0000:00:02.0: reg 0x20: [mem 0x-0x00003fff 64bit pref]
0.579248] pci 0000:00:01.0: BAR 6: assigned [mem 0x-0x1003ffff pref]
0.579773] pci 0000:00:01.0: BAR 4: assigned [mem 0x-0x8000003fff 64bit pref]
0.580132] pci 0000:00:02.0: BAR 4: assigned [mem 0x-0x8000007fff 64bit pref]
0.580965] pci 0000:00:01.0: BAR 1: assigned [mem 0x-0x10040fff]
0.581226] pci 0000:00:02.0: BAR 1: assigned [mem 0x-0x10041fff]
0.581423] pci 0000:00:02.0: BAR 0: assigned [io
0x1000-0x103f]
0.581602] pci 0000:00:01.0: BAR 0: assigned [io
0x1040-0x105f]
0.612049] virtio-pci 0000:00:01.0: enabling device (0000 -& 0003)
0.615182] virtio-pci 0000:00:02.0: enabling device (0000 -& 0003)
0.617449] xenfs: not registering filesystem on non-xen platform
0.629378] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
0.636035] SuperH (H)SCI(F) driver initialized
0.645049] msm_serial: driver initialized
0.647353] cacheinfo: Unable to detect cache hierarchy for CPU 0
0.703861] brd: module loaded
0.744597] loop: module loaded
0.746301] hisi_sas: driver version v1.6
0.763497] libphy: Fixed MDIO Bus: probed
0.764792] tun: Universal TUN/TAP device driver, 1.6
0.764893] tun: (C) 1999-2004 Max Krasnyansky &&
0.778786] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
0.778947] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
0.779221] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k
0.779350] igb: Copyright (c) 2007-2014 Intel Corporation.
0.779597] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k
0.779732] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
0.779963] sky2: driver version 1.30
0.785210] VFIO - User Level meta-driver version: 0.3
0.790416] ehci_hcd: USB 2.0 ‘Enhanced‘ Host Controller (EHCI) Driver
0.790566] ehci-pci: EHCI PCI platform driver
0.790837] ehci-platform: EHCI generic platform driver
0.791295] ehci-exynos: EHCI EXYNOS driver
0.791675] ehci-msm: Qualcomm On-Chip EHCI Host Controller
0.792007] ohci_hcd: USB 1.1 ‘Open‘ Host Controller (OHCI) Driver
0.792378] ohci-pci: OHCI PCI platform driver
0.792662] ohci-platform: OHCI generic platform driver
0.793038] ohci-exynos: OHCI EXYNOS driver
0.794623] usbcore: registered new interface driver usb-storage
0.798672] mousedev: PS/2 mouse device common for all mice
0.805642] rtc-pl031 9010000.pl031: rtc core: registered pl031 as rtc0
0.811835] i2c /dev entries driver
0.828982] sdhci: Secure Digital Host Controller Interface driver
0.829089] sdhci: Copyright(c) Pierre Ossman
0.830537] Synopsys Designware Multimedia Card Interface Driver
0.834397] sdhci-pltfm: SDHCI platform and OF driver helper
0.838884] ledtrig-cpu: registered to indicate activity on CPUs
0.844425] usbcore: registered new interface driver usbhid
0.844550] usbhid: USB HID core driver
0.854742] NET: Registered protocol family 17
0.856085] 9pnet: Installing 9P2000 support
0.858100] Key type dns_resolver registered
0.860637] registered taskstats version 1
0.866590] input: gpio-keys as /devices/platform/gpio-keys/input/input0
0.868829] rtc-pl031 9010000.pl031: setting system clock to 2017-02-22 11:58:46 UTC ()
0.869655] ALSA device list:
No soundcards found.
0.871669] uart-pl011 9000000.pl011: no DMA platform data
0.873769] RAMDISK: gzip image found at block 0
1.242574] EXT4-fs (ram0): mounted filesystem with ordered data mode. Opts: (null)
1.242933] VFS: Mounted root (ext4 filesystem) on device 1:0.
1.244541] devtmpfs: mounted
1.292728] Freeing unused kernel memory: 1024K
223 Please press Enter to activate this console.
227 [ ]# ifconfig
Link encap:Ethernet
HWaddr 52:54:00:12:34:56
inet addr:172.16.14.250
Bcast:172.16.15.255
Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST
RX packets:143 errors:0 dropped:14 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:23589 (23.0 KiB)
TX bytes:0 (0.0 B)
Link encap:Local Loopback
inet addr:127.0.0.1
Mask:255.0.0.0
UP LOOPBACK RUNNING
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B)
TX bytes:0 (0.0 B)
242 [ ]# mount -t nfs -o nolock 172.16.14.203:/nfsroot /mnt
26.558855] random: fast init done
244 [ ]# mount
245 /dev/root on / type ext4 (rw,relatime,data=ordered)
246 devtmpfs on /dev type devtmpfs (rw,relatime,size=2011360k,nr_inodes=502840,mode=755)
247 proc on /proc type proc (rw,relatime)
248 tmpfs on /tmp type tmpfs (rw,relatime)
249 sysfs on /sys type sysfs (rw,relatime)
250 debugfs on /sys/kernel/debug type debugfs (rw,relatime)
251 devpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)
252 172.16.14.203:/nfsroot on /mnt type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.16.14.203,mountvers=3,mountproto=tcp,local_lock=all,addr=172.16.14.203)
253 [ ]# mkdir mnt2
254 [ ]# mount -t 9p -o trans=virtio,version=9p2000.L hostshare /mnt2
255 [ ]# mount
256 /dev/root on / type ext4 (rw,relatime,data=ordered)
257 devtmpfs on /dev type devtmpfs (rw,relatime,size=2011360k,nr_inodes=502840,mode=755)
258 proc on /proc type proc (rw,relatime)
259 tmpfs on /tmp type tmpfs (rw,relatime)
260 sysfs on /sys type sysfs (rw,relatime)
261 debugfs on /sys/kernel/debug type debugfs (rw,relatime)
262 devpts on /dev/pts type devpts (rw,relatime,mode=600,ptmxmode=000)
263 172.16.14.203:/nfsroot on /mnt type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=172.16.14.203,mountvers=3,mountproto=tcp,local_lock=all,addr=172.16.14.203)
264 hostshare on /mnt2 type 9p (rw,sync,dirsync,relatime,trans=virtio,version=9p2000.L)
265 [ ]# [
246.789966] random: crng init done
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