> For the complete documentation index, see [llms.txt](https://mmensee.gitbook.io/r2s-r4s/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mmensee.gitbook.io/r2s-r4s/gu-jian-xia-zai-shua-ji-fang-fa/zai-xian-sheng-ji-fang-fa.md).

# 在线升级方法

在软路由后台，【系统】→【备份升级】→上传固件，即可在线升级。注意：不要保留老固件的配置。

注意：可在线升级的格式为 systemupgrade格式的固件，不需要解压，直接上传。比如下面这个文件，

[openwrt-rockchip-armv8-friendlyarm\_nanopi-r2s-squashfs-sysupgrade.img.gz](https://github.com/DHDAXCW/NanoPi-R2S/releases/download/2022.01.03-Lean2/openwrt-rockchip-armv8-friendlyarm_nanopi-r2s-squashfs-sysupgrade.img.gz)这个文件名最后这些字母

[r2s-squashfs-sysupgrade.img.gz](https://github.com/DHDAXCW/NanoPi-R2S/releases/download/2022.01.03-Lean2/openwrt-rockchip-armv8-friendlyarm_nanopi-r2s-squashfs-sysupgrade.img.gz)  即r2s 的squafshfs的在线升级包格式。

此方法不一定100%成功，若失败，则用读卡器卡刷

个别固件支持putty 通过ssh命令行升级，需要根据固件作者通过的升级代码操作

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