On Sat, May 12, 2012 at 2:08 PM, Ajay Garg <a...@activitycentral.com> wrote:
> Thanks Martin. > Very neatly explained !!!! :) > > I tried the "rmmod/modprobe" hack in "olpc-configure", and it worked > (obviously because, this time the "/etc.modprobe.d/libertas.conf" could be > fetched/read from persistent storage). Mesh-icons were no more visible in > the neighborhood-view (both during reboot, and resume-from-suspend). > > But I too felt that this is more of a hack, and not a clean solution. > > > So, I ventured out exploring dracut. > I created a initramfs image on my home/work laptop, hosting Fedora-14, via > the command :: > > "dracut test.img" > > and then listed the contents of it > > "lsinitrd test.img" > > I saw that "/etc/modprobe.d/*" files were a part of "test.img". > So, I think that these files _are_ included as part of the initramfs > image, as per say. > > > So, > > """ > Is this observation (that /etc/modprobe.d/* files are included, as per > say) in line with what is expected? > If yes, that is kind of a relief, since that would mean that only > "/etc/modprobe.d/libertas.conf" is not being included (in initramfs that > is). > """ > Well, just inspected "lsinitrd olpcrd.img" (assuming "olpcrd.img" _is_ the initramfs image in the signed build :D ) "olpcrd.img", in fact, does not contain any /etc/modprobe/* files. Am looking into exploring customized dracut-modules-olpc.. Thanks and Regards, Ajay > > > > Thanks and Regards, > Ajay > > > > On Fri, May 11, 2012 at 3:33 AM, Martin Langhoff < > martin.langh...@gmail.com> wrote: > >> On Thu, May 10, 2012 at 1:23 PM, Ajay Garg <a...@activitycentral.com> >> wrote: >> > If I boot with "/security/develop.sig" folder in my pendrive, >> > a) >> > mesh-icons are observed in neighborhood-view, both during reboot and >> > resume-from-suspend. >> >> Welcome to the initramfs stage of your journey! When the laptop needs >> activation, it loads a different initramfs that among other things >> loads the libertas module. >> >> You need to get your /etc/modprobe.d/ files into the initramfs. For >> your vanilla build, look into dracut-modules-olpc. If you're hoping to >> get this integrated into a build with an alternative initramfs (hint: >> Ceibal) that build will have a custom version of dracut-modules-olpc. >> >> That is the right way. When the laptop is in secure mode, olpc.fth is >> _ignored_, so no chance to set a kernel cmdline there. >> >> An easier alternative might be to check for those flags under /sys, >> and if they are there, rmmod/modprobe libertas for example in >> olpc-configure (so during early boot). >> >> >> >> >> m >> -- >> martin.langh...@gmail.com >> mar...@laptop.org -- Software Architect - OLPC >> - ask interesting questions >> - don't get distracted with shiny stuff - working code first >> - http://wiki.laptop.org/go/User:Martinlanghoff >> > >
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