Android 8.0 not working about android-backup-extractor HOT 16 CLOSED

I removed the version check from AndroidBackup.java, recompiled, and extracted a backup just fine. So likely it is compatible and this check just needs to be changed. YMMV.

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Thanks mhoran, agreed you shouldnt randomly run jars from people on the internet, at least not on a live machine...a sandbox however

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Can you paste the exception you are getting and the backup header?

Also, are you having problems with Android 7 (Nougat) or 8 (O, in preview)

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Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgument
Exception: Don't know how to process version 5
at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:232)
at org.nick.abe.Main.main(Main.java:40)
Caused by: java.lang.IllegalArgumentException: Don't know how to process version
5
at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:72)
... 1 more

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Android Backup version shows 5.1 in the header

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I backed up from Android 8.0

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Hi Nelenkov,

is there any plan to fix this? :) I'm running into same issue with "Exception: Don't know how to process version 5" with Developer preview of Android O (Google Pixel C). I have no issue with Android 7 (Nougat) at all (Google Pixel C & Nexus 9).

Thx & Have a nice day.

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Same issue here. It would be lovely to see an update for those who can't compile their own.

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@mhoran can you upload your version of the jar with the 8.0 fix

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Attached -- though I wouldn't recommend running jar files from random folks on the Internet.

Here's the diff:

diff --git a/src/org/nick/abe/AndroidBackup.java b/src/org/nick/abe/AndroidBackup.java
index b27986f..dc333ee 100644
--- a/src/org/nick/abe/AndroidBackup.java
+++ b/src/org/nick/abe/AndroidBackup.java
@@ -38,6 +38,7 @@ public class AndroidBackup {
     private static final int BACKUP_FILE_V2 = 2;
     private static final int BACKUP_FILE_V3 = 3;
     private static final int BACKUP_FILE_V4 = 4;
+    private static final int BACKUP_FILE_V5 = 5;
 
     private static final String ENCRYPTION_MECHANISM = "AES/CBC/PKCS5Padding";
     private static final int PBKDF2_HASH_ROUNDS = 10000;
@@ -68,7 +69,7 @@ public class AndroidBackup {
                 System.err.println("Version: " + versionStr);
             }
             int version = Integer.parseInt(versionStr);
-            if (version < BACKUP_FILE_V1 || version > BACKUP_FILE_V4) {
+            if (version < BACKUP_FILE_V1 || version > BACKUP_FILE_V5) {
                 throw new IllegalArgumentException(
                         "Don't know how to process version " + versionStr);
             }

abe.zip

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Hello mhoran,

I have a little problem that I don't quite understand. The abe. jar you provide is unpacked to a different folder than I want. Actually, the folder to which the backup. ab is unpacked should be different, as you can see in the following batch file:

@echo off

cd Data
java -jar abe.jar unpack adb/Sicherung/backup.ab adb/Sicherung/backup.tar
tar -xvf adb/Sicherung/backup.tar
tar -tf adb/Sicherung/backup.tar > adb/Sicherung/backup.list

pause

The abe. jar unpacks the backup. off to the "Data\adb\S Backup"folder, but then unpacks the backup. tar not to the same folder, but to the "Data\adb\apps"folder. Why is that, and can I do something about it?

Thank you for your help!

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Hmm, I'm surprised about that. I'd expect backup.tar to extract to the current directory (e.g. Data/apps). I don't have a backup to test this out with at the moment, but I'm fairly certain that's what I saw in the past. a-b-e doesn't, so far as I know, use the local filesystem hierarchy to create the backup.tar.

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ABE doesn't do anything with the tar file itself. Differences in behaviour are probably due to the tar variant you are using.

In any case, 8.0 should be supported now, so closing this.

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what happened~
java -jar abe.jar unpack mihealth.bak csf
"xception in thread "main" java.lang.RuntimeException: java.lang.NumberFormatException: For input string: "5
at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:232)
at org.nick.abe.Main.main(Main.java:40)
"aused by: java.lang.NumberFormatException: For input string: "5
at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:67)
at java.base/java.lang.Integer.parseInt(Integer.java:668)
at java.base/java.lang.Integer.parseInt(Integer.java:786)
at org.nick.abe.AndroidBackup.extractAsTar(AndroidBackup.java:72)
... 1 more

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This issue is closed so you might want to create a new one.
Also please include details about what kind of file mihealth.bak is. From the error, it doesn't appear to be the standard Android format.

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