Kernel Panic after upgrade to 16.04 (R-Pi/BerryBoot)

Support & Help Requests Raspberry Pi
#1

On a Pi 3, it’s the second time i get a problem, although i don’t remember if the first time was a kernel panic too… But in both cases i used BerryBoot to install Mate 15.04 on a HDD and then upgraded. This time i got a kernel panic, and i barely installed a few packages…

I wonder if the upgrade to 16.04 could have had an incompatibility with BerryBoot on Pi…?

(Or if something else went wrong…)

Thanks.

Edit: i think there’s indeed a problem between Mate and BerryBoot, 'cause i can’t boot either on Raspbian installed on the same disk, i get a kernel panic too. The previous time both install failed at the same time too.

#2

What details do you see on the kernel panic?

From the sound of things, it may be a misconfiguration where it has loaded the kernel, but can’t find the root file system.

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#3

I couldn’t look again at the kernel panic, i’m upgrading another Mate on a SD card on the same Pi and it’s taking forever. (i think it was way faster with the HDD…)

But i’m taking a look at BerryBoot, and when looking at the config files from the boot sd card (with BerryBoot on it) by curiousity, i see

that cmdline.txt indicates :

"smsc95xx.turbo_mode=N elevator=deadline quiet bootmenutimeout=10 datadev=sdb1 sound=headphones qmap=fr"

and uEnv.txt :

"datadev=sda1 sound=headphones qmap=fr datadev=sdb1 sound=headphones qmap=fr"

What i find odd is that i have only one sdX device, which is the harddisk, so i guess the datadev (if that’s the data directory where BerryBoot puts the root filesystems) should be sda1…

And i don’t know what uEnv.txt is about, why everything is duplicated and why there is one sda1 and one sdb1.

So i’ll try to look more into this, i don’t really know how BerryBoot really work, so for now i don’t know much.
I’ll try to see if there are boot options/settings i can see from the boot menu.

i’ll post a pic of the kernel panics later when i can, thank you.

#4

Yup, so well… i just changed the “datadev=sdb1” to sda1 and it boots…

No idea if it was changed by something, or what happened, but i guess it’s fixed. (more or less?)

Thanks @lah7 for the hint ! :slight_smile:

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