Retropie-kernel panic-not syncing: vfs: unable to mount root fs on unknown-block(179,2)

mr315

Please! My English is bad. But this is also my problem.

My pack is:
Raspberry pi 3 v2
Samsung 64gb
Retropie 4.2
Using Win32DiskImager
Not connected USB
Error messages received: kernel panic-not syncing: vfs: unable to mount root fs in unknown-block (179,2)
Downloaded in the official Retropie page

I tried with a Sandisk 8gb card, but nothing changed
Tried to partition the 64GB card, but I got the same result

Win32DiskImager displays an error about the image being corrupted. But I saw the same error and everything happens well.

I hope you have understood me =)

jonnykesh

@mr315 Just follow the advice given above. Re-download the image and burn it onto the card again. It worked for him, why wouldn't it work for you?

mr315

@jonnykesh , I do not know. Tried several times.
I tried partitioning the SD and with a different SD... =(
Downloaded it through Chrome and Internet Explorer.
I will try a download manager later.

jonnykesh

@mr315 Really odd. If you post exactly what you are doing and what software you are using to write the image to the card maybe someone will see where the problem is.

jonnykesh

@mr315 try this:

If your error message ends with 2, like this:

    Kernel panic-not syncing: VFS: unable to mount root fs on unknown-block(179,2)

it is likely that the problem is caused by an update bug. The fix involves switching that 2 into a 6:

    Start the Raspberry holding the Shift key.
    Click the Edit config (e) button or press e.
    Click the cmdline.txt tab or press the right arrow on the keyboard.
    Replace:

    root=/dev/mmcblk0p2

with

    root=/dev/mmcblk0p6

    Click OK and then press escape on the keyboard to proceed with the boot sequence.

Your Pi should now boot fine.

mr315

@jonnykesh , I format SD with "SD Formatter" -- or partition with 32gb with "Fat32Formatter" or other, but i dont remember now.
Download the image on "retropie.org.uk/download/";
Uncompressed with WinRar;
Write the image with "Win32DiskImager" on my sd.
I plug the card into the Raspberry and plug it in

ps: unzipping by 7zip generates an error that does not allow me to write the image.
And the keyboard does not work on the screen in question

jonnykesh

@mr315 The /boot partition can be read from a windows computer. Plug the SD card into a Win PC and edit the cmdline.txtfrom there.

mr315

@jonnykesh Ok

mr315

@jonnykesh
The error now changed the end of "179,2" to "179,6". Nothing but.

jonnykesh

@mr315 Try using a program called etcher to write to the card. Link https://etcher.io/
It takes a bit longer but it checks the image.

StevieJoe360

Hello,
I have a theory, I'm not quite sure, but I heard somewhere that a Raspberry Pi 3 can only use up to 32 GB on an SD/MicroSD card, if it's higher than that you have to do something different. I know I'm being very vauge(?) here, but I don't remember all the details. I suggest you look up something like "raspberry pi 3 64gb sd card." Hope this helps, but if not... Remember, it's just a theory, A GAME THEORY!! (Sorry, I had to.)

TMNTturtlguy

@steviejoe360 this is not true, I have run several 128gb sd cards.

herb_fargus

@steviejoe360 said in Retropie-kernel panic-not syncing: vfs: unable to mount root fs on unknown-block(179,2):

I'm not quite sure, but I heard somewhere

What my crazy relative says right before they quote something they saw on their Facebook feed.

mr315

@jonnykesh Thaks!
I tested with "H2testw" and found that the 64GB SDXC is fake. But the 8GB is not and it happened the same. I'll buy one like a friend's. If the error persists, can it be the image or the raspberry?

jonnykesh

@mr315 Where did you purchase the card from? Unfortunately there are a lot of fakes about. They all tend to be 4/8GB spoofing they are 64/128.

mr315

@jonnykesh Bought on the internet.
I bought another one now, and it worked fine. SanDisk Ultra 64gb. Thanks for all.

jonnykesh

@mr315 I use Amazon or an actual physical shop when buying larger SD cards. At least then you have some comeback and a 1 year warranty.

Seedname101

I have a similar problem.
Raspberry Pi 2 b
San Disk Ultra 32GB
RetroPie 4.4.4
Using Balena Etcher on mac (flashed through retropie4.4.4.img...)
A couple of usb drives (not used all at the same time) , a keyboard, wireless usb controllers, wifi dongle.
Generic xbox controllers (xpad driver)
Error messages received: kernel panic-not syncing: vfs: unable to mount root fs on unknown-block(179,2)
Emulator: ES/Retropie
Turning the retropie on.

The only thing that makes this different is that I have a pretty good idea on how this happened. I was using a usb- micro sdhc adapter drive to transfer (4876) games at once. Also, I overclocked my retropie around lunch. These two factors MOST LIKELY caused this to happen and I want to keep my games... since I have over 10,000, So re writing it or formatting it isn't an option. Also, my usb keyboard wont work because of the error. All of my usb ports are useless. I wouldnt only like my games though. I did a ton of programming on it and have TONS of stuff like background music, custom loading screens, game launch screens, etc., I also wonder if there is a file on the sd card that has all of that on it, so I can just use a new image and take that. Thanks in advance!

BuZz

@Seedname101 please follow the guidelines agreed when signing up. This thread is from 2017. Please create a new topic.

Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first