how to verify the contents of a vbmeta image

RashGift
Junior Member

27

28-10-2021, 07:09 AM

#1

I've tried the command used to install python on linux but it's not working(picture attached)
ubuntu@ubuntu:~$ sudo apt install python 2.7 python-pip
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package python is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
python-is-python3

E: Package 'python' has no installation candidate
E: Unable to locate package 2.7
E: Couldn't find any package by glob '2.7'
E: Unable to locate package python-pip

I'm making use of windows and i have everything in the right place (openssl and python added to path) but when I run the command python avbtool.py info_image --image vbmeta-sign.img, this happens
The version of python installed is python2.7.1
Can i just get help checking the contents of my vbmeta-sign? I'm attaching a picture of what happens after i run the command and a copy of my vbmeta-sign.img

This post was last modified: 28-10-2021, 07:37 AM by RashGift.

Attached Files

Capture1.PNG
Size: 20.78 KB / Downloads: 1

vbmeta-sign.img
Size: 1 MB / Downloads: 2

Screenshot from 2021-10-28 06-28-24.png
Size: 802.77 KB / Downloads: 1

hovatek
Administrator

49,778

28-10-2021, 11:13 AM

#2

(28-10-2021, 07:09 AM)RashGift ...

not sure where you downloaded this avbtool you're using from but you can easily tell which python version an avbtool file requires
edit the avbtool.py using any text editor e.g notepad or notepad++
if it begins with "#!/usr/bin/env python" then python 2
if it begins with "#!/usr/bin/env python3" then python 3

if the avbtool file you have is for python 2 and you still get the same error then try downloading v2.7.10 (it's a different version from 2.7.1)

BTW info_image from your vbmeta below

Code:

Minimum libavb version:   1.0

Header Block:             256 bytes

Authentication Block:     576 bytes

Auxiliary Block:          12416 bytes

Algorithm:                SHA256_RSA4096

Rollback Index:           0

Flags:                    0

Release String:           'avbtool 1.1.0'

Descriptors:

    Chain Partition descriptor:

      Partition Name:          boot

      Rollback Index Location: 1

      Public key (sha1):       ea410c1b46cdb2e40e526880ff383f083bd615d5

    Chain Partition descriptor:

      Partition Name:          system

      Rollback Index Location: 3

      Public key (sha1):       e2c66ff8a1d787d7bf898711187bff150f691d27

    Chain Partition descriptor:

      Partition Name:          vendor

      Rollback Index Location: 4

      Public key (sha1):       9885bf5bf909e5208dfd42abaf51ad9b104ee117

    Chain Partition descriptor:

      Partition Name:          product

      Rollback Index Location: 10

      Public key (sha1):       766a95798206f6e980e42414e3cb658617c27daf

    Chain Partition descriptor:

      Partition Name:          dtbo

      Rollback Index Location: 9

      Public key (sha1):       ea410c1b46cdb2e40e526880ff383f083bd615d5

    Chain Partition descriptor:

      Partition Name:          recovery

      Rollback Index Location: 2

      Public key (sha1):       d9093b9a181bdb5731b44d60a9f850dc724e2874

    Chain Partition descriptor:

      Partition Name:          w_modem

      Rollback Index Location: 5

      Public key (sha1):       e93e7d91ba1a46b81a5f15129b4dc5769bf41f26

    Chain Partition descriptor:

      Partition Name:          w_gdsp

      Rollback Index Location: 6

      Public key (sha1):       e93e7d91ba1a46b81a5f15129b4dc5769bf41f26

    Chain Partition descriptor:

      Partition Name:          pm_sys

      Rollback Index Location: 7

      Public key (sha1):       e93e7d91ba1a46b81a5f15129b4dc5769bf41f26

    Chain Partition descriptor:

      Partition Name:          dtb

      Rollback Index Location: 11

      Public key (sha1):       ea410c1b46cdb2e40e526880ff383f083bd615d5

This post was last modified: 28-10-2021, 11:14 AM by X3non.

RashGift
Junior Member

27

28-10-2021, 11:32 AM

#3

(28-10-2021, 11:13 AM)X3non
(28-10-2021, 07:09 AM)RashGift ...

not sure where you downloaded this avbtool you're using from but you can easily tell which python version an avbtool file requires
edit the avbtool.py using any text editor e.g notepad or notepad++
if it begins with "#!/usr/bin/env python" then python 2
if it begins with "#!/usr/bin/env python3" then python 3

if the avbtool file you have is for python 2 and you still get the same error then try downloading v2.7.10 (it's a different version from 2.7.1)

BTW info_image from your vbmeta below

Code:

Minimum libavb version: 1.0 Header Block: 256 bytes Authentication Block: 576 bytes Auxiliary Block: 12416 bytes Algorithm: SHA256_RSA4096 Rollback Index: 0 Flags: 0 Release String: 'avbtool 1.1.0' Descriptors: Chain Partition descriptor: Partition Name: boot Rollback Index Location: 1 Public key (sha1): ea410c1b46cdb2e40e526880ff383f083bd615d5 Chain Partition descriptor: Partition Name: system Rollback Index Location: 3 Public key (sha1): e2c66ff8a1d787d7bf898711187bff150f691d27 Chain Partition descriptor: Partition Name: vendor Rollback Index Location: 4 Public key (sha1): 9885bf5bf909e5208dfd42abaf51ad9b104ee117 Chain Partition descriptor: Partition Name: product Rollback Index Location: 10 Public key (sha1): 766a95798206f6e980e42414e3cb658617c27daf Chain Partition descriptor: Partition Name: dtbo Rollback Index Location: 9 Public key (sha1): ea410c1b46cdb2e40e526880ff383f083bd615d5 Chain Partition descriptor: Partition Name: recovery Rollback Index Location: 2 Public key (sha1): d9093b9a181bdb5731b44d60a9f850dc724e2874 Chain Partition descriptor: Partition Name: w_modem Rollback Index Location: 5 Public key (sha1): e93e7d91ba1a46b81a5f15129b4dc5769bf41f26 Chain Partition descriptor: Partition Name: w_gdsp Rollback Index Location: 6 Public key (sha1): e93e7d91ba1a46b81a5f15129b4dc5769bf41f26 Chain Partition descriptor: Partition Name: pm_sys Rollback Index Location: 7 Public key (sha1): e93e7d91ba1a46b81a5f15129b4dc5769bf41f26 Chain Partition descriptor: Partition Name: dtb Rollback Index Location: 11 Public key (sha1): ea410c1b46cdb2e40e526880ff383f083bd615d5

Thanks for the image info... The version I'm using is actually 2.7.10
The avbtool was downloaded from the link on your thread, although after extracting the file I had to save it as .py manually

RashGift
Junior Member

27

28-10-2021, 12:39 PM

#4

(28-10-2021, 11:13 AM)X3non
(28-10-2021, 07:09 AM)RashGift ...

not sure where you downloaded this avbtool you're using from but you can easily tell which python version an avbtool file requires
edit the avbtool.py using any text editor e.g notepad or notepad++
if it begins with "#!/usr/bin/env python" then python 2
if it begins with "#!/usr/bin/env python3" then python 3

if the avbtool file you have is for python 2 and you still get the same error then try downloading v2.7.10 (it's a different version from 2.7.1)

BTW info_image from your vbmeta below

Code:

Minimum libavb version: 1.0 Header Block: 256 bytes Authentication Block: 576 bytes Auxiliary Block: 12416 bytes Algorithm: SHA256_RSA4096 Rollback Index: 0 Flags: 0 Release String: 'avbtool 1.1.0' Descriptors: Chain Partition descriptor: Partition Name: boot Rollback Index Location: 1 Public key (sha1): ea410c1b46cdb2e40e526880ff383f083bd615d5 Chain Partition descriptor: Partition Name: system Rollback Index Location: 3 Public key (sha1): e2c66ff8a1d787d7bf898711187bff150f691d27 Chain Partition descriptor: Partition Name: vendor Rollback Index Location: 4 Public key (sha1): 9885bf5bf909e5208dfd42abaf51ad9b104ee117 Chain Partition descriptor: Partition Name: product Rollback Index Location: 10 Public key (sha1): 766a95798206f6e980e42414e3cb658617c27daf Chain Partition descriptor: Partition Name: dtbo Rollback Index Location: 9 Public key (sha1): ea410c1b46cdb2e40e526880ff383f083bd615d5 Chain Partition descriptor: Partition Name: recovery Rollback Index Location: 2 Public key (sha1): d9093b9a181bdb5731b44d60a9f850dc724e2874 Chain Partition descriptor: Partition Name: w_modem Rollback Index Location: 5 Public key (sha1): e93e7d91ba1a46b81a5f15129b4dc5769bf41f26 Chain Partition descriptor: Partition Name: w_gdsp Rollback Index Location: 6 Public key (sha1): e93e7d91ba1a46b81a5f15129b4dc5769bf41f26 Chain Partition descriptor: Partition Name: pm_sys Rollback Index Location: 7 Public key (sha1): e93e7d91ba1a46b81a5f15129b4dc5769bf41f26 Chain Partition descriptor: Partition Name: dtb Rollback Index Location: 11 Public key (sha1): ea410c1b46cdb2e40e526880ff383f083bd615d5

What runs on my Linux is python3 won't I have issues with creating the vbmeta?
Can I get one that'll run on python3

hovatek
Administrator

49,778

29-10-2021, 11:05 AM

#5

(28-10-2021, 12:39 PM)RashGift ...
What runs on my Linux is python3 won't I have issues with creating the vbmeta?
Can I get one that'll run on python3

you can try and find out
i believe someone posted such a version @ https://www.hovatek.com/forum/thread-326...#pid194827

This post was last modified: 29-10-2021, 11:06 AM by X3non.

View a Printable Version

Users browsing this thread:
1 Guest(s)

Find us

Call us

Mail us

Useful Links

Actions