[root] LiveBoot

LiveBoot is a boot animation that shows you logcat and dmesg outputs on-screen as they happen. Output configuration includes logcat level, buffer and format selection; whether to show dmesg; the amount of lines that should fit on your screen, whether word-wrap should be employed, and if output should be color-coded. Additionally the background can be set to transparent to overlay the existing boot animation, which looks awesome during boot.

A feature is built-in to test your current configuration without rebooting. The lines shown in test mode may be limited and relatively static, this does not reflect exact boot time behavior as much as it just shows you that it works and how big the text will be.

Note that LiveBoot will only show up after the data partition is mounted. If you need to enter a decryption key or pattern at boot, it will not show up until you have done so.

Root

This app does not only require root, it requires specifically SuperSU version 2.40 or newer, or a recent Magisk, due to how the boot-time code is launched. Alternatively, the app will try to function for otherwise rooted firmwares that support init.d, but this is not officially supported and it cannot be guaranteed to work.

Compatibility

Officially the app supports 5.0+ and newer. Regardless of version, the app may work on your device or it may not. I've gotten it to work on a bunch of my own devices on various firmwares, but not on all. Even if the test run functionality works, this does not necessarily mean it will actually work during boot. It usually does, but not always.

This does indeed also mean I cannot guarantee continued operation - even if it works for you today, it may fail your next firmware update. If that is an issue for you, then you should definitely not update to Pro.

The risk of bootloops is extremely low, but not completely non-existent. Should a bootloop occur, removing either the app's APK or /system/su.d/0000liveboot through recovery should fix the problem.

Unless you are using SuperSU in system-less mode, the app writes to /system, as such your firmware must allow this. There is no recovery-based install option at this time.

Pro

There's an in-app purchase to upgrade to Pro, which supports my developments, and unlocks the transparency option as well as logcat buffer and format selection.

Of course, if you have one of the paid variants of the old live logcat or live dmesg boot animations from all those years ago installed, this will also enable Pro mode.

Like some of my other apps these days, if you don't have Google Play but still managed to install the APK, this will also enable Pro mode.

Last but not least, if you simply don't want to pay for it, there's also a button to enable Pro mode.

Script

If /system/su.d/0000liveboot.script or /su/su.d/0000liveboot.script exists (chmod 0644, not 0700 like other files in /system/su.d/ or /su/su.d/ !), this script will be run instead of logcat and dmesg, and its output will be shown in white (stdout) and red (stderr).

Discussion/support/etc

Please see the official app thread on XDA-Developers.com here: http://forum.xda-developers.com/android/apps-games/liveboot-t2976189

LiveBoot是一个启动动画，可以在屏幕上显示logcat和dmesg输出。输出配置包括logcat级别，缓冲区和格式选择;是否显示dmesg;应该适合屏幕的线条数量，是否应采用自动换行，以及输出是否应采用颜色编码。此外，可以将后台设置为透明以覆盖现有的引导动画，这在引导期间看起来很棒。

内置功能可在不重新启动的情况下测试当前配置。测试模式中显示的行可能是有限且相对静态的，这并不能反映出确切的启动时间行为，因为它只是向您显示它的工作原理以及文本的大小。

请注意，LiveBoot仅在装入数据分区后显示。如果您需要在启动时输入解密密钥或模式，则在完成之前不会显示。

根的

此应用程序不仅需要root，它还需要具体的 SuperSU 版本 2.40 或更新版本，或者最近的Magisk，因为启动时代码的启动方式。或者，应用程序将尝试为支持 init.d 的其他root用户固件运行，但这不是官方支持的，并且无法保证可以正常工作。

兼容性的

官方的应用程序支持5.0+和更新。无论版本如何，该应用程序都可以在您的设备上运行，也可能不运行。我已经让它在各种固件上使用我自己的设备，但不是全部。即使测试运行功能有效，这也不一定意味着它在启动时实际工作。它通常会，但并非总是如此。

这确实也意味着我不能保证继续操作 - 即使它今天适用于您，它可能会失败您的下一次固件更新。如果这对您来说是个问题，那么您绝对不应该更新为Pro。

引导循环的风险极低，但并非完全不存在。如果发生bootloop，通过恢复删除应用程序的APK或 /system/su.d/0000liveboot 应解决问题。

除非您在无系统模式下使用SuperSU，否则应用程序会写入 / system ，因此您的固件必须允许此操作。目前没有基于恢复的安装选项。

专家的

有一个应用程序内购买升级到Pro，它支持我的开发，并解锁透明度选项以及logcat缓冲区和格式选择。

当然，如果您安装了多年前安装的旧实时logcat或live dmesg启动动画的付费变体之一，这也将启用Pro模式。

就像我现在的其他一些应用程序一样，如果您没有Google Play但仍设法安装APK，这也将启用Pro模式。

最后但并非最不重要的是，如果您只是不想付费，那么还有一个启用Pro模式的按钮。

脚本的

如果 /system/su.d/0000liveboot.script 或 /su/su.d/0000liveboot.script 存在（chmod 0644，而不是像中的其他文件那样0700 /system/su.d / 或 /su/su.d / ！），将运行此脚本而不是logcat和dmesg，其输出将以白色显示（stdout ）和红色（stderr）。

讨论/支持/等

请在此处查看XDA-Developers.com上的官方应用程序主题：http：//forum.xda-developers.com/android/apps-games/liveboot-t2976189