[Q] Can You Wipe Dalvik Cache via command in update-script?

tehseano

Senior Member

Jan 23, 2009

829

16

• Jan 16, 2011

• #1

I've searched, but most of the posts are either asking "how to wipe it via adb" and then the thread gets sent into a different direction, and isn't directly answering my question.

I have an update.zip that just does all my wipes in one click, rather than having to wipe data/cache, then system, boot, and dalvik. Instead, I just run the update, it formats them all, makes life easier for me.

anyways I want to know if I can add a command in to wipe dalvik cache? Thanks in advance for any replies!

 

funkeee

Senior Member

May 25, 2010

292

13

• Jan 16, 2011

• #2

I don't see why not; Titanium Backup has a function that can do it for you.

I don't know the partition block for dalvik cache on the g2. But the command would look something like:

su
mount -o rw /dev/block/mmcblk[xxx] /sdcard/
rm -r /sdcard/dalvik-cache/*

 

KCRic

Senior Member

Aug 4, 2010

1,230

268

Overland Park

• Jan 17, 2011

• #3

CWM has an option under advanced that clears the dalvik cache - if you're using an update script then you must already be using CWM, seems pointless to me but I can see not wanting to have the extra steps.

Anyway, if you really want to know what script to use then just break apart CWM and the scripts should be in there. I have one from my MT3GS (pre s-off, so it's an update.zip not an image) which should be easier to tear apart but I don't know if the partitions are the same as the G2.

You can either write this into the update-script or tell the update-script to execute a .sh file which is written with linux commands so it easier to do if you're not familiar with update scripting. Just an fyi.

 

matteof93

Senior Member

Aug 26, 2011

660

248

Bagnolo Piemonte, ITA

• Oct 17, 2011

• #4

i am trying to make a script for optimus one to wipe dalvik cache and cache at boot.
the dalvik is on the ext4 partition on the sd.
how can i write a working script?

 

discours

Senior Member

Oct 17, 2012

156

125

• May 10, 2013

• #5

This is what I use for the wipes in updater-script:

Code:

delete_recursive("/cache");
delete_recursive("/data");
delete_recursive("/system");
delete_recursive("/data/dalvik-cache");

 

• 

Reactions: superbeef150, asmanao, TouchScreenNoob and 5 others

ankurbata

Senior Member

Jun 9, 2013

152

556

32

Kolkata

www.androidingredients.blogspot.in

• Jul 10, 2013

• #6

It Worked!

discours said:

This is what I use for the wipes in updater-script:

Code:

delete_recursive("/cache");
delete_recursive("/data");
delete_recursive("/system");
delete_recursive("/data/dalvik-cache");

Click to expand...

Click to collapse

Thanks A Lot Discours... U Dont Know How Much Time You Saved Mine! :laugh:

Keep Up The Good Work! :good:

 

discours

Senior Member

Oct 17, 2012

156

125

• Jul 11, 2013

• #7

Just happy to see, it's usefull

 

• 

Reactions: Luncer

A

Armi1P

Member

Jun 17, 2013

21

1

• Jul 12, 2013

• #8

discours said:

This is what I use for the wipes in updater-script:

Code:

delete_recursive("/cache");
delete_recursive("/data");
delete_recursive("/system");
delete_recursive("/data/dalvik-cache");

Click to expand...

Click to collapse

And I have to mount /cache and /data [run_program("/sbin/busybox", "mount"...] first?

 

ankurbata

Senior Member

Jun 9, 2013

152

556

32

Kolkata

www.androidingredients.blogspot.in

• Jul 13, 2013

• #9

/cache & /data mount is not necessary

Armi1P said:

And I have to mount /cache and /data [run_program("/sbin/busybox", "mount"...] first?

Click to expand...

Click to collapse

No Its Not Required...

 

manudroid19

Senior Member

Feb 23, 2013

368

840

• Aug 6, 2013

• #10

discours said:

This is what I use for the wipes in updater-script:

Code:

delete_recursive("/cache");
delete_recursive("/data");
delete_recursive("/system");
delete_recursive("/data/dalvik-cache");

Click to expand...

Click to collapse

Why delete_recursive instead of just delete????

 

Last edited: Aug 6, 2013

discours

Senior Member

Oct 17, 2012

156

125

• Aug 7, 2013

• #11

manu19thebest said:

Why delete_recursive instead of just delete????

Click to expand...

Click to collapse

The command delete_recursive delete folder, subfolders and files : it's my way to be sure of a total wiping :cyclops:

 

• 

Reactions: manudroid19

Pacattack

Senior Member

Feb 5, 2011

6,374

7,608

• Nov 29, 2013

• #12

Armi1P said:

And I have to mount /cache and /data [run_program("/sbin/busybox", "mount"...] first?

Click to expand...

Click to collapse

I agree with you, with out it, it did not work...

I did this and it worked

;run_program("/sbin/busybox", "mount", "/data")
;delete_recursive("/data/dalvik-cache")
;unmount("/data")

 

• 

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Z

Zilliman

Senior Member

Sep 12, 2013

196

18

• Jan 31, 2014

• #13

He asked to clear his Dalvik cache but you are showing how to delete system, and data ? What happens if you delete "system" ? Will the phone even boot afterwards?

 

discours

Senior Member

Oct 17, 2012

156

125

• Jan 31, 2014

• #14

:cyclops:mistake

 

Last edited: Jan 31, 2014

fndpena

Senior Member

Nov 11, 2012

780

207

Montréal

• Jun 13, 2014

• #15

discours said:

This is what I use for the wipes in updater-script:

Code:

delete_recursive("/cache");
delete_recursive("/data");
delete_recursive("/system");
delete_recursive("/data/dalvik-cache");

Click to expand...

Click to collapse

This is a dumb question and I probably know the answer, but I'll ask anyway...

"delete_recursive("/data/dalvik-cache");" will only delete the content inside dalvik-cache folder, right?

 

demkantor

Inactive Recognized Contributor

Nov 10, 2011

6,860

3,765

mpls

• Jun 14, 2014

• #16

Correct

Sent from my Nexus 4 using XDA Premium 4 mobile app

 

K

kiffmet

Guest

• Mar 14, 2015

• #17

very useful, thanks