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Add 手动下载资源.md 说明

lihm 3 years ago
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+# Yocto 构建时手动下载资源
+
+在编译过程中,碰到下载错误,或是下载慢的时候,可以使用手动下载方式加速下载。
+
+下载资源分为两种,一种是直接下载压缩包文件,另一种是下载 git 仓库。
+
+
+
+## 手动下载压缩包文件
+
+![download_error_tar](file:///Users/lihm/workroom/Misc/assets/download_error_tar.png?lastModify=1612188420)
+
+> 此图片为 tar.gz 压缩包文件下载失败
+
+从错误信息可以看到下载路径。但当下载慢的时候,是无法显示下载路径的,还是必须要从 bb 文件中查找。
+
+下载错误的包为 `xfce4-panel` ,后面为版本号。
+
+1. 查找下载地址
+
+   ```bash
+   # 在 build 目录下,如 thead-build/ice-base-xfce
+   bitbake -e xfce4-panel | grep ^SRC_URI
+   SRC_URI="http://archive.xfce.org/src/xfce/xfce4-panel/4.16/xfce4-panel-4.16.0.tar.bz2      file://0001-windowmenu-do-not-display-desktop-icon-when-no-windo.patch     file://0002-use-lxdm-to-replace-dm-tool.patch "
+   ```
+
+2. 下载文件
+
+   当下载的资源为压缩包时,下载目录就在 downloads 目录下,这时候就可以使用多线程下载工具下载文件,文件名就为原始文件名。
+
+   ```basj
+   axel -n 16 http://archive.xfce.org/src/xfce/xfce4-panel/4.16/xfce4-panel-4.16.0.tar.bz2
+   
+   ./downloads$ ll xfce4-
+   xfce4-dev-tools-4.16.0.tar.bz2       xfce4-notifyd-0.6.2.tar.bz2.done     xfce4-session-4.16.0.tar.bz2.done    xfce4-terminal-0.8.10.tar.bz2
+   xfce4-dev-tools-4.16.0.tar.bz2.done  xfce4-panel-4.16.0.tar.bz2           xfce4-settings-4.16.0.tar.bz2        xfce4-terminal-0.8.10.tar.bz2.done
+   xfce4-notifyd-0.6.2.tar.bz2          xfce4-session-4.16.0.tar.bz2         xfce4-settings-4.16.0.tar.bz2.done
+   ```
+
+3. 添加 xxx.done 文件
+
+   可以看到下载完成后,都会有一个 `.done` 文件表明下载成功。
+
+   ```bash
+   touch xfce4-panel-4.16.0.tar.bz2.done
+   
+   ll xfce4-panel-4.16.0.tar.bz2*
+   ./downloads$ ll xfce4-panel-4.16.0.tar.bz2*
+   -rw-r--r-- 1 koumei.lhm users 1382354 Feb  1 22:19 xfce4-panel-4.16.0.tar.bz2
+   -rw-r--r-- 1 koumei.lhm users       0 Feb  1 22:21 xfce4-panel-4.16.0.tar.bz2.done
+   ```
+
+4. 验证
+
+   至此下载就完成了,可以执行 `bitbake xfce4-panel -cdo_fetch` 查看是否下载成功
+
+   ```bash
+   ~/git_repo/yocto-work/riscv_yocto/thead-build/ice-base-xfce$ bitbake xfce4-panel -cdo_fetch
+   Loading cache: 100% |##################################################################################################################################################################| Time: 0:00:00
+   Loaded 3754 entries from dependency cache.
+   Parsing recipes: 100% |################################################################################################################################################################| Time: 0:00:00
+   Parsing of 2530 .bb files complete (2529 cached, 1 parsed). 3755 targets, 207 skipped, 0 masked, 0 errors.
+   NOTE: Resolving any missing task queue dependencies
+   
+   Build Configuration:
+   BB_VERSION           = "1.48.0"
+   BUILD_SYS            = "x86_64-linux"
+   NATIVELSBSTRING      = "universal"
+   TARGET_SYS           = "riscv64-oe-linux"
+   MACHINE              = "ice"
+   DISTRO               = "nodistro"
+   DISTRO_VERSION       = "nodistro.0"
+   TUNE_FEATURES        = "riscv64"
+   EXTERNAL_TOOLCHAIN   = "/home/public/host"
+   EXTERNAL_TARGET_SYS  = "riscv64-linux"
+   GCC_VERSION          = "8.1.0"
+   meta                 = "HEAD:499b74d0934f5f088facfe04477a14a22b52e2d5"
+   meta-oe
+   meta-python
+   meta-multimedia
+   meta-networking      = "HEAD:4453ac5cc0d8412e8f7ece5f79987809a8c4ddf3"
+   meta-external-toolchain = "HEAD:f9d1b7a1ec75241c0d61bd9c29a28048e6376ef8"
+   meta-riscv           = "HEAD:58bcdf7f8e3f116d0fbd406cde991fe09ffac71a"
+   meta-gnome
+   meta-xfce
+   meta-filesystems
+   meta-webserver       = "HEAD:4453ac5cc0d8412e8f7ece5f79987809a8c4ddf3"
+   
+   Initialising tasks: 100% |#############################################################################################################################################################| Time: 0:00:00
+   Sstate summary: Wanted 0 Found 0 Missed 0 Current 0 (0% match, 0% complete)
+   NOTE: No setscene tasks
+   NOTE: Executing Tasks
+   NOTE: Tasks Summary: Attempted 1 tasks of which 0 didn't need to be rerun and all succeeded.
+   NOTE: Writing buildhistory
+   NOTE: Writing buildhistory took: 0 seconds
+   ```
+
+
+
+## 手动下载 git 仓库
+
+![download_error_git](assets/download_error_git.png)
+
+> 此图片为 git 仓库下载失败
+
+下载错误的包为 `asciidoc-native` ,后面为版本号。
+
+1. 查找下载地址
+
+   ```bash
+   ~/git_repo/yocto-work/riscv_yocto/thead-build/ice-base-xfce$ bitbake -e asciidoc-native | grep ^SRC_URI
+   SRC_URI="git://github.com/asciidoc/asciidoc-py3;protocol=https            file://auto-catalogs.patch"
+   ```
+
+   地址为 `git://xxxx;protocol=https` 就是 git 仓库,下载地址为 `https://github.com/asciidoc/asciidoc-py3`  ,有的地址后面还会指定 `branch` ,下载的时候也同样要加上 `-b BRANCH`。  
+
+2. 下载仓库
+
+   ```bash
+   ~/git_repo/yocto-work/riscv_yocto/thead-build/ice-base-xfce$ cd ../downloads/git2/
+   
+   git clone --bare https://github.com/asciidoc/asciidoc-py3
+   # 如果指定 BRANCH
+   # git clone --bare https://github.com/asciidoc/asciidoc-py3 -b BRANCH
+   
+   # 下载下来的仓库目录为 asciidoc-py3.git
+   # 根据仓库地址更改仓库目录,把全路径中的 "/" 替换为 "."
+   mv asciidoc-py3.git github.com.asciidoc.asciidoc-py3
+   ```
+
+3. 添加 xxx.done 文件
+
+   每个仓库目录都会有一个 `.done` 文件表明下载成功。
+
+   ```bash
+   touch github.com.asciidoc.asciidoc-py3.done
+   ```
+
+4. 验证
+
+   至此下载就完成了,可以执行 `bitbake asciidoc-native -cdo_fetch` 查看是否下载成功。
+
+   ```bash
+   ~/git_repo/yocto-work/riscv_yocto/thead-build/ice-base-xfce$ bitbake asciidoc-native -cdo_fetch
+   Loading cache: 100% |##################################################################################################################################################################| Time: 0:00:00
+   Loaded 3754 entries from dependency cache.
+   Parsing recipes: 100% |################################################################################################################################################################| Time: 0:00:00
+   Parsing of 2530 .bb files complete (2529 cached, 1 parsed). 3755 targets, 207 skipped, 0 masked, 0 errors.
+   NOTE: Resolving any missing task queue dependencies
+   
+   Build Configuration:
+   BB_VERSION           = "1.48.0"
+   BUILD_SYS            = "x86_64-linux"
+   NATIVELSBSTRING      = "universal"
+   TARGET_SYS           = "riscv64-oe-linux"
+   MACHINE              = "ice"
+   DISTRO               = "nodistro"
+   DISTRO_VERSION       = "nodistro.0"
+   TUNE_FEATURES        = "riscv64"
+   EXTERNAL_TOOLCHAIN   = "/home/public/host"
+   EXTERNAL_TARGET_SYS  = "riscv64-linux"
+   GCC_VERSION          = "8.1.0"
+   meta                 = "HEAD:499b74d0934f5f088facfe04477a14a22b52e2d5"
+   meta-oe
+   meta-python
+   meta-multimedia
+   meta-networking      = "HEAD:4453ac5cc0d8412e8f7ece5f79987809a8c4ddf3"
+   meta-external-toolchain = "HEAD:f9d1b7a1ec75241c0d61bd9c29a28048e6376ef8"
+   meta-riscv           = "HEAD:58bcdf7f8e3f116d0fbd406cde991fe09ffac71a"
+   meta-gnome
+   meta-xfce
+   meta-filesystems
+   meta-webserver       = "HEAD:4453ac5cc0d8412e8f7ece5f79987809a8c4ddf3"
+   
+   Initialising tasks: 100% |#############################################################################################################################################################| Time: 0:00:00
+   Sstate summary: Wanted 0 Found 0 Missed 0 Current 0 (0% match, 0% complete)
+   NOTE: No setscene tasks
+   NOTE: Executing Tasks
+   NOTE: Tasks Summary: Attempted 1 tasks of which 0 didn't need to be rerun and all succeeded.
+   NOTE: Writing buildhistory
+   NOTE: Writing buildhistory took: 0 seconds
+   ```
+
+   
+