Add 2024-04-01_LXC 安裝 Windows 11,並分享 i915 內顯
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content/posts/2024/2024-01-08_線上備份樹莓派/index.md
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content/posts/2024/2024-01-08_線上備份樹莓派/index.md
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---
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slug: 線上備份樹莓派
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title: 線上備份樹莓派
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description:
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toc: true
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authors: [awin]
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tags: [raspberrypi]
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categories: [system]
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series: [Raspberry Pi]
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date: 2024-01-08T00:00:00
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lastmod: 2024-01-08T00:00:00
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featuredVideo:
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featuredImage:
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draft: false
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enableComment: true
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---
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`image-backup` 是 `image-utils` 裡面的一個工具,可以直接把樹莓派系統直接備份到另一個檔案,不用拔卡或是關機,非常方便。
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<!--more-->
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`image-utils` 的Github repo在:[seamusdemora/RonR-RPi-image-utils: tools to create a backup of a running Raspbian system to an SD card image file](https://github.com/seamusdemora/RonR-RPi-image-utils)
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## 安裝 `image-utils`
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```shell
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cd && mkdir ~/image-utilities && cd ~/image-utilities
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wget -O image.zip "https://forums.raspberrypi.com/download/file.php?id=63044&sid=58c9d2d90272e5ae96c12a58a30731d9"
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unzip ./image.zip
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chmod a+x image-*
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```
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## 備份
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在 `~/image-utilities` 目錄下執行 `image-backup` 會以對話的方式來備份,像是這樣:
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```shell
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sudo ./image-backup
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Image file to create? /media/backup/pi4_sd_backup.img ## 輸入檔案路徑,例子是/media/backup/pi4_sd_backup.img
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Initial image file ROOT filesystem size (MB) [11631]? ## 按 Enter 跳過,使用 default 值
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Added space for incremental updates after shrinking (MB) [0]? ## 按 Enter 跳過,使用 default 值
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Create /media/backup/pi4_sd_backup.img (y/n)? y ## 按 y
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```
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然後就會開始備份系統,過程會花上一些時間,取決於你的系統大小與檔案寫的速度。
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## 自動備份
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但是這樣每次都要手動操作很麻煩,像下面這樣一個命令解決比較方便:
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```shell
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sudo ./image-backup -i /media/backup/pi4.img
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```
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這樣就可以透過`crontab`自動執行了。
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## 增量備份
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如果已經備份過系統,下次備份的時候有指定上一次的備份檔,就會做增量備份,如下:
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```shell
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sudo ./image-backup /media/upload/pi4.img
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```
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注意沒有 `-i` 這個選項。
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