how to delay boot when waiting for usb disks?
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From: Martin Kraus on 1 Jul 2010 14:00 Hi. I need to mount a usb disk during boot so that daemons writing to the disk start. The problem is that usb-storage takes time to set up block devices and it does this in the background so it depends on many factors if it makes it before mountall.sh is called. Is there some way this can be accomplished in debian without explicit sleep 20 in mountall.sh? Also, is there some way to start daemons only after certain hardware becomes available? thanks mk -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100701172219.GE2841@/bin/hostname
From: Memnon Anon on 1 Jul 2010 14:50 You are on testing? > User-Agent: Mutt/1.5.20 (2009-06-14) Martin Kraus <lists_mk(a)wujiman.net> writes: > Hi. I need to mount a usb disk during boot so that daemons writing to the disk > start. The problem is that usb-storage takes time to set up block devices and > it does this in the background so it depends on many factors if it makes it > before mountall.sh is called. > Is there some way this can be accomplished in debian without explicit sleep 20 > in mountall.sh? Google seems to suggest these solutions: a) rootdelay=xx http://stoilis.wordpress.com/tag/rootdelay/ He uses 35 seconds, most people seem to go for a smaller value like 10. b) udev http://blogs.nonado.net/diamond/2010/03/27/mounting-usb-drives-at-boot-using-udev-on-debian/ However, I did not test or use any of these, so ... Memnon -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/871vbn9ick.fsf(a)mean.albasani.net
From: Martin Kraus on 1 Jul 2010 16:00
On Thu, Jul 01, 2010 at 08:23:39PM +0200, Memnon Anon wrote: > You are on testing? > > User-Agent: Mutt/1.5.20 (2009-06-14) > > Martin Kraus <lists_mk(a)wujiman.net> writes: > > > Hi. I need to mount a usb disk during boot so that daemons writing to the disk > > start. The problem is that usb-storage takes time to set up block devices and > > it does this in the background so it depends on many factors if it makes it > > before mountall.sh is called. > > Is there some way this can be accomplished in debian without explicit sleep 20 > > in mountall.sh? > > Google seems to suggest these solutions: > > a) rootdelay=xx rootdelay is only for root, I need to wait for nonroot disk. it happens after initramfs mounts root and activates init from the root fs. > b) udev > > http://blogs.nonado.net/diamond/2010/03/27/mounting-usb-drives-at-boot-using-udev-on-debian/ So I guess Debian doesn't solve this in any system friendly way? mk -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/20100701183421.GF2841@/bin/hostname |