Linux环境配置错误记录

1.  pip install --special_version 

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pip10.0.1 以上的版本安装包报一堆错误，所以降级为9.0. 版本。

使用命令：

python -m pip install pip==9.0.

其中， -m 参数的意思是将库中的python模块用作脚本去运行^[1]

run library module as a script (terminates option list)

2.  fusibile make error 

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在编译 fusibile 时出现错误

最开始是 cmake .. 都没有通过，因为没找到 OpenCV 链接库，在装好 OpenCV 之后问题解决，顺利通过

然后 make 又出错，错误提示如下

 ~/mvsnet/fusibile/build$ make
 [ %] Building NVCC (Device) object CMakeFiles/fusibile.dir/fusibile_generated_fusibile.cu.o
 ptxas info    :  bytes gmem,  bytes cmem[]
 ptxas info    : Compiling entry function '_Z8fusibileR11GlobalStatei' for 'sm_30'
 ptxas info    : Function properties for _Z8fusibileR11GlobalStatei
      bytes stack frame,  bytes spill stores,  bytes spill loads
 ptxas info    : Used  registers,  bytes cmem[],  bytes cmem[]
 ptxas info    :  bytes gmem,  bytes cmem[]
 ptxas info    : Compiling entry function '_Z8fusibileR11GlobalStatei' for 'sm_52'
 ptxas info    : Function properties for _Z8fusibileR11GlobalStatei
      bytes stack frame,  bytes spill stores,  bytes spill loads
 ptxas info    : Used  registers,  bytes cmem[],  bytes cmem[]
 /usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:
 /usr/include/string.h::: error: ‘memcpy’ was not declared in this scope
    return (char *) memcpy (__dest, __src, __n) + __n;
                                           ^
 CMake Error at fusibile_generated_fusibile.cu.o.cmake: (message):
   Error generating file
   /home/cvlab/mvsnet/fusibile/build/CMakeFiles/fusibile.dir//./fusibile_generated_fusibile.cu.o

 CMakeFiles/fusibile.dir/build.make:: recipe for target 'CMakeFiles/fusibile.dir/fusibile_generated_fusibile.cu.o' failed
 make[]: *** [CMakeFiles/fusibile.dir/fusibile_generated_fusibile.cu.o] Error
 CMakeFiles/Makefile2:: recipe for target 'CMakeFiles/fusibile.dir/all' failed
 make[]: *** [CMakeFiles/fusibile.dir/all] Error
 Makefile:: recipe for target 'all' failed
 make: *** [all] Error 

参考网友【@cheney康】编译opencv2.4.13error 的解决方案，对 g++ 版本进行兼容设置，在 CMakeLists.txt 中添加

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FORCE_INLINES")

再运行make出现下面的信息，应该算是已经通过了？

 [ %] Building NVCC (Device) object CMakeFiles/fusibile.dir/fusibile_generated_fusibile.cu.o
 ptxas info    :  bytes gmem,  bytes cmem[]
 ptxas info    : Compiling entry function '_Z8fusibileR11GlobalStatei' for 'sm_30'
 ptxas info    : Function properties for _Z8fusibileR11GlobalStatei
      bytes stack frame,  bytes spill stores,  bytes spill loads
 ptxas info    : Used  registers,  bytes cmem[],  bytes cmem[]
 ptxas info    :  bytes gmem,  bytes cmem[]
 ptxas info    : Compiling entry function '_Z8fusibileR11GlobalStatei' for 'sm_52'
 ptxas info    : Function properties for _Z8fusibileR11GlobalStatei
      bytes stack frame,  bytes spill stores,  bytes spill loads
 ptxas info    : Used  registers,  bytes cmem[],  bytes cmem[]
 Scanning dependencies of target fusibile
 [ %] Building CXX object CMakeFiles/fusibile.dir/main.cpp.o
 In file included from /home/cvlab/mvsnet/fusibile/main.cpp:::
 /home/cvlab/mvsnet/fusibile/helper_cuda.h: In function ‘const char* _cudaGetErrorEnum(CUresult)’:
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_PEER_ACCESS_UNSUPPORTED’ not handled in switch [-Wswitch]
      switch (error)
             ^
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_INVALID_PTX’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_INVALID_GRAPHICS_CONTEXT’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_ILLEGAL_ADDRESS’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_HARDWARE_STACK_ERROR’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_ILLEGAL_INSTRUCTION’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_MISALIGNED_ADDRESS’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_INVALID_ADDRESS_SPACE’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_INVALID_PC’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_NOT_PERMITTED’ not handled in switch [-Wswitch]
 /home/cvlab/mvsnet/fusibile/helper_cuda.h::: warning: enumeration value ‘CUDA_ERROR_NOT_SUPPORTED’ not handled in switch [-Wswitch]
 [%] Linking CXX executable fusibile
 [%] Built target fusibile

3. 硬盘挂载问题

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问题描述：电脑权限紊乱导致的当前用户无法读取外接硬盘的内容。

硬盘信息展示， Name 是 Linux filesystem，所以我的硬盘是什么格式的呢？

 cv@cv:~$ sudo gdisk /dev/sdb
 GPT fdisk (gdisk) version 1.0.

 Partition table scan:
   MBR: MBR only
   BSD: not present
   APM: not present
   GPT: not present

 ***************************************************************
 Found invalid GPT and valid MBR; converting MBR to GPT format
 in memory. THIS OPERATION IS POTENTIALLY DESTRUCTIVE! Exit by
 typing 'q' if you don't want to convert your MBR partitions
 to GPT format!
 ***************************************************************

 Command (? for help): p
 Disk /dev/sdb:  sectors, 465.8 GiB
 Logical sector size:  bytes
 Disk identifier (GUID): 060A754F--46DA--5E2C74D4C59B
 Partition table holds up to  entries
 First usable sector is , last usable sector is
 Partitions will be aligned on -sector boundaries
 Total free space is  sectors (3.0 MiB)

 Number  Start (sector)    End (sector)  Size       Code  Name
                          465.8 GiB     Linux filesystem

让我产生这种疑问的是下面的信息：

 cv@cv:~$ sudo fdisk -l
 Disk /dev/sdb: 465.8 GiB,  bytes,  sectors
 Units: sectors of  *  =  bytes
 Sector size (logical/physical):  bytes /  bytes
 I/O size (minimum/optimal):  bytes /  bytes
 Disklabel type: dos
 Disk identifier: 0x49e2c54e

 Device     Boot Start       End   Sectors   Size Id Type
 /dev/sdb1  *        .8G  Linux

 cv@cv:~$ sudo blkid
 /dev/sda1: LABEL="M-gM-3M-;M-gM-;M-^_M-dM-?M-^]M-gM-^UM-^Y" UUID="" TYPE="ntfs" PARTUUID="469e8113-01"
 ...
 /dev/sda10: UUID="351d9423-6f8c-4c33-9847-5f0ee1804f11" TYPE="ext4" PARTUUID="469e8113-0a"
 /dev/sdb1: LABEL="Seagate" UUID="7E42F44342F3FE29" TYPE="ntfs" PARTUUID="49e2c54e-01"

硬盘内容明明是存在的，却无法读取到，非常奇怪。

 cv@cv:~$ ls -lh /media/cv/
 total .0K
 drwxrwxr--  cv cv .0K 3月   : Seagate
 cv@cv:~$ ls -lh /media/cv/Seagate/
 total 

4. NVIDIA-SMI(System Management Interface)指标含义

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每一项的具体指代意义

Wed Apr   ::
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 390.67                 Driver Version: 390.67                    |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|     GeForce GTX     Off  | ::00.0  On |                  N/A |
| %   36C    P8     8W / 180W |     27MiB /  8118MiB |      %      Default |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                       GPU Memory |
|  GPU       PID   Type   Process name                             Usage      |
|=============================================================================|
|                G   /usr/lib/xorg/Xorg                            25MiB |
+-----------------------------------------------------------------------------+

Timestamp : Wed Apr ::

Driver Version:  390.67

Product Name: The official product name of the GPU. This is an alphanumeric string. GeForce GTX

Mainly we focus on the GPU Memory-Usage:  27MiB / 8118MiB

Reference

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[1] pip版本降级

[2] 编译opencv 2.4.13error:1 /usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope