lauhub

Hi again,
 
I successfully made overlayroot work under Debian Jessie.
 
Ubuntu package
 
I installed overlayroot_0.27ubuntu1.2_all.deb package
wget http://fr.archive.ubuntu.com/ubuntu/pool/main/c/cloud-initramfs-tools/overlayroot_0.27ubuntu1.2_all.deb dpkg -i overlayroot_0.27ubuntu1.2_all.deb Correcting overlayfs module name
 
About the following error:
Failure: overlayroot: missing kernel module overlayfs I had to modify the /usr/share/initramfs-tools/scripts/init-bottom/overlayroot file:
Here is a diff:
diff --suppress-common-lines -r -y ./usr/share/initramfs-tools/scripts/init-bottom/overlayroot /usr/share/initramfs-tools/scripts/init-bottom/overlayroot VARIABLES="overlayroot overlayroot_cfgdisk"                   | VARIABLES="overlayroot overlayroot_cfgdisk overlayroot_driver         overlayfs)                                            |         overlayfs|overlay)                 mount_type="overlayfs"                        |                 mount_type="overlay"                 mount_opts="${mount_opts} overlayroot ${ROOTM |                 mount_opts="${mount_opts} overlay ${ROOTMNT}" mount --move "${ROOTMNT}" "${root_ro}" ||                     | mount -o move "${ROOTMNT}" "${root_ro}" ||         mount --move ${root_ro} ${ROOTMNT}                    |         mount -o move ${root_ro} ${ROOTMNT} mount --move ${root_ro} "${ROOTMNT}${root_ro}" ||             | mount -o move ${root_ro} "${ROOTMNT}${root_ro}" || mount --move "${root_rw}" "${ROOTMNT}${root_rw}" ||           | mount -o move "${root_rw}" "${ROOTMNT}${root_rw}" || As you can see, I added one variable to the VARIABLES list and made some changes to mount parameters.
 
Here is the complete file:
 
 
 
I modified the /usr/share/initramfs-tools/hooks/overlayroot:
diff --suppress-common-lines -r -y ./usr/share/initramfs-tools/hooks/overlayroot /usr/share/initramfs-tools/hooks/overlayroot manual_add_modules overlayfs                                  | manual_add_modules overlay Configuration
 
I added a file named /etc/overlayroot.local.conf (instead of modifying /etc/overlayroot.conf):
overlayroot_cfgdisk="disabled" overlayroot="tmpfs" overlayroot_driver="overlay" Chrooting to R/W
 
Last but not least, I had to modify the overlayroot-chroot executable
diff --suppress-common-lines -r -y ./usr/sbin/overlayroot-chroot /usr/sbin/overlayroot-chroot         overlay=$(grep -m1 "^overlayroot / overlayfs " /proc/ |         overlay=$(grep -m1 "^overlay / overlay " /proc/mounts  
 
 
Fast-forward
 
I attached an archive with the modifications.
 
Using
tar zxvf overlayroot-debian-lauhub.tar.gz -C / after package installation should do the trick
overlayroot-debian.tar.gz

I still have the same problem on some SD cards (even with network connected).
 
Here is another lead I have not time yet to follow:
 
http://blog.jamesrhall.com/2014/04/ubuntu-server-1404-fun.html
 
Apparently, the kernel switches to a video mode that is not seen through serial link. So adding nomodeset could avoid this blocking.
 
 
I am interested in the link of the other thread you talked about

It's disabled in config. Enable it and it should work.
https://github.com/igorpecovnik/lib/blob/master/config/fex/lime-a10.fex#L281

Thank you,
 
I think I found why it did not work: without Ethernet cable connected, the boot process hangs. With the Ethernet cable connected, it works.
 
So I think that the random pool was not enough random without the cable connection.
 
So good news: my SD card is fine !