note that in that log, snapd isn't running because snapd[2217]: fatal error: runtime: out of memory
On 22 February 2017 at 07:52, Sunny Bhayani <sunny.bhay...@einfochips.com> wrote: > Hi Ogra, > > Appreciate for your help. > >> hi, >> Am Freitag, den 17.02.2017, 10:06 +0000 schrieb Sunny Bhayani: >> > >> > >> > You are correct that in the prebuilt image (Ubuntu OS) for >> > Dragonboard, the Wifi >> > module is auto-loaded during boot. But in our case, this does not >> > happen. >> > >> > So can you please let us know, that in what part (plugin) of the >> > snapcraft.yaml >> > do we need to mention the kernel modules that needs to be auto-loaded >> > during the >> > kernel boot. >> > >> > We tried to add the kernel module in the snapcraft.yaml as below: >> > >> > kernel-initrd-modules: >> > - squashfs >> > - wcn36xx >> >> this would just pull the module into the initrd which would be useless, >> since we do not ship any userspace bits for WIFI support in there. >> if you can modprobe it it is obviously already in the right place in >> your /lib/modules dir on the booted system, so first of all remove it >> from the list above. having it already loaded from the initrd on boot >> might make it miss the right initialization since it wont find all the >> userspace bits that it needs in the initrd. >> >> also make sure you have the firmware in the right place on the booted >> rootfs, this is how it looks like on the official dragoboard image: >> >> http://paste.ubuntu.com/24012991/ >> > Yes, we have the /lib/modules and /lib/firmware populated as you have > mentioned > above. > >> > >> > Also, we went through the kernel-initrd-modules description: >> > https://snapcraft.io/docs/reference/plugins/kernel >> > >> > and there it is mentioned that the "kernel-initrd-modules" plugin is >> > used to >> > mention the modules required to mount the rootfs. >> >> this means filesystem or disk controller modules (squashfs, ext4 (if >> you do not compile it in), mmc support and the like), since your system >> boots to a rootfs already you should not need anything more than you >> currently have. >> >> > > > Yes, agreed as you have mentioned above for the "kernel-initrd-modules". > >> > >> > It would be great if you can please help us out on this front as well >> > for the >> > snap list / snap install for the Ubuntu OS. >> >> this definitely means that snapd did not start for some reason, like i >> mentioned before this could be caused by the firstboot initialization >> of the board having failed or by some missing feature that snapd >> expects from your kernel. >> >> does sudo journalctl -u snapd.service reveal anything ? >> do you find anything interesting in syslog in general ? >> > We are seeing error related to AppArmor patches in journalctl log. > The log is at: http://pastebin.com/vG9DQfTf > >> > >> > >> > Yes. We are using a USB to Ethernet module on dragonboard to use the >> > Ethernet. >> > >> did you check if the behaviour of the WLAN device changes when booting >> without the USB dongle attached ? >> > This we have not checked. Will update for this. > >> > While using the prebuilt image for Dragonboard, we are able to >> > configure the >> > access point for Wifi interface in the first boot screen, but then >> > while doing >> > ssh to the board, it is asking for password (during first boot). How >> > can we >> > resolve this ? >> > >> >> did console-conf (the first boot configuration UI) actually finish the >> user creation properly (did it tell you about it and give you info >> about how to ssh into the board) without any errors ? >> >> /var/log/console-conf/subiquity-debug.log might be informative here. >> > The subiquity-debug.log is at: http://pastebin.com/39zsb4nE > > The AppArmor patches that we ported from the > http://kernel.ubuntu.com/git/ppisati/ubuntu-vivid.git/tree/arch/arm/configs/snappy?h=snappy_v3.10 > > are for the linux kernel 3.10. > > But the kernel that we are referring to is from 96boards - linux kernel 4.4. > > Moreover, the prebuilt image is also built for linux kernel 4.4. > > So do you have a kernel source for AppArmor patches which are ported on > linux > kernel 4.4 like the prebuilt Ubuntu Core Image for Dragonboard410c. > > Please provide the patchset link for the latest kernel. > > Awaiting your reply. > > Thanks, > Sunny > > ************************************************************************************************************************************************************* > eInfochips Business Disclaimer: This e-mail message and all attachments > transmitted with it are intended solely for the use of the addressee and may > contain legally privileged and confidential information. 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