Am Thu, 01 Jul 2010 09:31:47 +0200 schrieb Goswin von Brederlow <goswin-...@web.de>:
> The bigger problem is later during boot when you need to wait for all > devices to appear so /usr, /home, ... can be mounted. One way to solve > this would be to have the fsck and mounting of filesystems wait for > the specified timeout for the device to appear as well. So even more > event based stuff. Event based init systems need some watchdog type behaviour in any case, like "mountall" with upstart/ubuntu. > Another issue is that in the case some device is missing and you do > run into a timeout things have to timeout in the right order. > E.g. /dev/md1 waits for /dev/sdc1 and lvm waits for /dev/md1. > Then /dev/md1 has to timeout first and come up degraded so the lvm > starts successfully. And I think at that point the only solution is > to know the layering of devices so the layers can timeout lowest to > highest. There are some notes at: http://wiki.debian.org/AdvancedStartupShutdownWithMultilayeredBlockDevices/How-To-Boot The init watchdog needs a list (or tree of dependencies) of devices/events to wait for, degrade or fail. Cheers, Christian -- To UNSUBSCRIBE, email to debian-devel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20100705092404.460b6...@smtp.tu-bs.de
