Hello,

We once applied this overlay-rootfs solution with centos 7 and it worked perfectly :)
But for some reasons, there was a decision to start the project with centos 8 instead of centos 7....

Trying to apply this project/solution with a fresh install of centos 8, results in a a cursor scrolling in left-up screen, and nothing else happens.

I am still trying to figure out why... if I have a solution by myself I will post it.

Thanks for any idea,
Ran

Hi,

I tried to install it on centOS 7.
I made:

make 
make install

(didn't make the rpm)

and than do the following:

dracut -f

in /etc/overlayroot.conf I see my rootfs partition:

overlayrootdevice=/dev/mmcblk1p2

I see that new initramfs was created for my kernel, but on testing it, I see that files are non-volatile (as if no overlay at all).

This is what I tried:

1. I rechecked that kernel (4.14.87) support overlay (overlay_fs=y).
2. I then tried to figure out if initramfs shows any error or printing , but I am not sure how to do that , is there a way to see if initramfs runs ?

I see that even if I delete the line from grub with initrd16 /initramfs-4.14.87-rt49.img linux boot correctly (which is quite surprising...) !

Thanks for the help!

I have a VM with two virtio disks vda and vdb
The VM has historically mounted root from vda

I have installed the RPM
edited /etc/overlayroot.conf setting overlayrootdevice=/dev/vdb
dracut -f for each of the kernel versions installed
rebooted, and I never get login prompt on console.

Any assistance would be greatly appreciated

Hello,

I'm trying to use your package on a minimal centos7 install

after installing package, edited /etc/overlayroot.conf
rebuild my initramfs

I see this in boot.log
Starting dracut pre-pivot and cleanup hook...
[ 4.536607] dracut-pre-pivot[463]: mount: special device /dev/dm-2 does not exist
[ 4.538347] dracut-pre-pivot[463]: /dev/dm-2: No such file or directory
[ 4.538603] dracut-pre-pivot[463]: Usage: mkfs.xfs

centos_dev1-overlay -> ../dm-2

Hello,

Is it possible to change to non-overlay ?

Thanks,
ran