On 31 August 2011 18:53, James Cameron <qu...@laptop.org> wrote: > On Thu, Jul 21, 2011 at 08:22:42AM +1000, James Cameron wrote: >> On Wed, Jul 20, 2011 at 06:40:55AM -0400, Martin Langhoff wrote: >> > Once they learn that a particular key combination "finishes" runin >> > earlier, accidents can happen with surprising frequency. >> >> How is the power button being prevented? >> >> If the problem is that an early termination is indistinguishable from a >> test success, why not change runin accordingly? I'm happy to do that if >> needed. > > I didn't get an answer to my question. This has come up ... Bert has > noticed that Ctrl-Alt-Erase doesn't work any more. #11202. The > installed base obviously got used to it. Withdrawing a useful feature, > even if undocumented, will cause an increase in support costs. > > So I've investigated the effect of Ctrl-Alt-Erase on runin. > > When manufacturing tag TS is set to RUNIN, runin-main will be run on > boot, which will start the X server and execute runin-tests within it. > > On normal successful completion, the preserve function in runin-tests > replaces /boot/olpc.fth with one that changes the TS tag to SHIP, in > inject-tags. > > When the X server is terminated by Ctrl-Alt-Erase, runin-tests aborts > immediately, and so the preserve function is not executed, and the > system is then rebooted. On the next boot, with TS still set to RUNIN, > the tests are restarted. > > The same thing happens with a battery removal or power button hold. > > So, when you say that this key combination "finishes" runin earlier, can > you explain your observations further? > > If this was the only justification for removing the feature, then I urge > you to reconsider, and restore the feature.
We're currently evaluating 11.3.0, and I recently discovered that Ctrl+Alt+Erase doesn't work on XO-1.5s. This feature is used by teachers in the field, and by us in testing. Its removal is a regression for us. I've updated #11202. Sridhar Dhanapalan Engineering Manager One Laptop per Child Australia _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel