OS升级与EPR (Emergency Patch Recovery)

chancekang

最近大家都在升级1.3吧. 升级前需要把先前安装的补丁和主题统统去掉.
从前1.1升1.2的时候, 我是土鳖的直接手动一个一个去掉的.
/ y6 J! t: ^1 `0 y4 k今天升级1.3前, 下载最新版的webos quick install 2.9.
7 H, h7 d5 y. [2 {0 g9 N- V在新版中我发现了这样一个按钮: "EPR"
开始觉得有点眼熟, 在哪里见过, 但印象不深了.
$ {( l; d5 M# ?' l- X0 E' l# |1 Fgoogle之后发现EPR=emergency patch recovery. 这个可以用来一次性去掉所有补丁.
) j+ T4 `# d" {不知道我土鳖了没有, 以前记得在preware里面看见过这个epr, 但他要求先卸载theme, 我嫌麻烦, 就没理他.
今天趁着升级的机会试了一下, 确实是个不错的补丁. 一键确实可以去掉所有补丁.

也许是我土鳖了, 直到今天才发现这个patch.
不过从update log来看, 确实是2.9版本才加到webos quick install里面来的.
  J6 j9 k4 }0 U: ~有准备升级的朋友, 可以尝试一下. 但切记先卸载主题.
) Q, }! m9 y9 B2 ?
http://forums.precentral.net/can ... install-v2-9-a.html

ilevis

Preload很久前就有了。preware是新版本才有了这个去补丁。建议升级前先运行这个。

qinray

这里也有类似的描述, 具体如下:

( t6 N# q7 t# [1 `; `3 N# p% YBefore updating to a new version of webOS, it is very important tofollow certain procedures. Here is an outline of the recommended way toupdate your webOS when you use Patches (and/or Themes) installed via Preware. Deviating from this procedure could cause unwanted results.

• 1. Open Preware and select Installed Packages.
• 2. Remove any Theme(s) you have installed. There SHOULD only be one...
• 3. Go back to the main menu and select "List of Everything" and search for "Emergency".
• 4. Select and install "Emergency Patch Recovery". Note: This will remove all patches. Please read the description.
  • After it completes (might take a couple minutes), choose"Update Feeds" from the App Menu (top left corner). Then go back tomain menu and "Installed Packages".
    • If "Patches" IS NOT listed as a category, go to step 5.
    • If "Patches" IS listed as a category, select it and remove any patches still installed. Then continue to step 5.
• 5. If you have Luna Manager installed, start it and "Restart Luna". If not, reboot your phone.
• 6. Update webOS. :)
• 7. Fire up Preware and bring down the App Menu (top left corner).
• 8. Select Update Feeds.
• 9. Continue on to reinstalling your Patches/Theme.
• 10. Thank the webOS-Internals group!

If you need any assistance, or just want to chat, download an IRC client and join us in #webos-internals on FreeNode.

8 I4 ?0 ~" N6 Y, M0 Y- f; kFor advanced users: You can dump a list of installed packagesusing the following technique before running the Emergency PatchRecovery (EPR) tool. This assumes you already have shell access to youryour Pre via novaterm or ssh.
% [' n6 E8 h9 |. l

• 1. Ssh into your Pre (you do not need to adopt root privileges)
• 2. Type (no quotes) "ipkg -o /var list_installed | greppatches". This will display the list of patches applied to your Pre.You can redirect this output to a file or copy-and-paste it from yourshell window.

Special thanks to dbSooner on the #webos-internals IRC channel for proposing this method.
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来自: http://www.webos-internals.org/w ... ting_webOS_Versions

horran3

好 好 好

frizzly

好东西啊！谢谢分享， ！

hellojp

没有pre，眼馋族，纯顶