Hello Alex, 
 
thank you for the quick response! 
 
 
But my problem is, that I have ptxdist 2014.01.0 based targets in the field which I want to remote update with ther existing busybox tar and the root.tgz file. 
 
In the meantime I have found the problem: it is the --label option. (Jon Ringle: image: Create root.tgz with label 0c30fd38e32126e6b1624a4acdc4a1efcd88c09c) 
 
I tried to copy the old rules/post/image_tgz.make file into my local rules directory to override the new one, but then I get the following warnings and the new rule inside ptxdist is still used: 
 
/usr/local/lib/ptxdist-2014.02.0/rules/post/image_tgz.make:15: warning: overriding commands for target `/home/user/bsp/platform-bsp/images/root.tgz' 
/home/user/bsp/rules/image_tgz.make:15: warning: ignoring old commands for target `/home/user/bsp/platform-bsp/images/root.tgz' 
 
Is there a way to override that rule locally in my bsp? 
 
 
Best regards, 
 
Matthias 
 
------ Originalnachricht ------ 
Gesendet: 27.02.2014 23:40:17 
Betreff: Re: [ptxdist] PTXdist 2014.02.0: problem with root.tgz 
Hi Matthias, 
 
On Thu, Feb 27, 2014 at 10:08:24PM +0000, Matthias Klein wrote: 
 Hello, 
 
 we are using the root.tgz file for our software updates. 
 But I can't decompress the root.tgz with the tar (busybox) from PTXdist 
 2014.02 on an PTXdist 2014.01.0 target ... 
 
 I always get: 
 
 tar -xvzf root.tgz -C dest/ 
 invalid tar magic 
 Does anyone have an idea ? 
 (I can decompress the archive on the host, but not on the target) 
 
 
 
First, I would check the checksum if tgz is the same like on your host 
system. 
 
Second, I googled a little bit... so it seems there are some options to 
have backwards compability (depends on your host tar version if you need 
them or not) check out [1]. 
 
Maybe BUSYBOX_FEATURE_TAR_OLDGNU_COMPATIBILITY is something which you need. 
 
- Alex