Any comments on these questions? Where should I post in to get information on boot configuration and boot time?
Regards, JS On Tuesday, October 25, 2016 at 11:40:50 AM UTC-5, Jean-Sebastien Stoezel wrote: > > Hi: > > I am running a Beagle Bone with a custom cape and I am looking for ways to > reduce its boot time. The cape will always be the same and so I'd like to > see what it is I can change to reduce or completely remove custom auto > detection scripts. > As of now, the board boots in 18s, 8s are spent in the kernel, 10s are > spent in user space. > > I have seen numbers out stating that the kernel can boot in less than 2s. > I'd be interested to know how this is possible. I am aware of a timeout > being used in the kernel, though I am not sure how to disable this (using > 4.1.33-bone-rt-r24). > > Currently generic-board-startup.service seems to be the service that takes > the longest to complete. Looking at what it does, it seems to be invoking > am335x_evm.h.sh. I am wondering if I could disable anything related to > detecting capes (including trying to read the eeprom). At this time I can > see lines 30 to 55 in the scripts being related to eeprom flashing/reading, > though I am not sure this is targetting the cape's eeprom. > > In general, how would I go about disabling auto detection of capes? Would > I need to edit these scripts? Or is there a cleaner way to disable features > by editing a config file? > > Regards, > JS > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/44e11b5a-531a-4553-8d78-a67f480dc2a6%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
