On Tuesday 17 August 2010 10:52:40 Sven Joachim wrote: > On 2010-08-17 20:26 +0200, Greg Madden wrote: > > On Tuesday 17 August 2010 09:16:51 Markus wrote: > >> Camaleón wrote: > >> > On Tue, 17 Aug 2010 11:26:30 +0200, Tabano wrote: > >> >> I want disable the sleep mode in my external hdd usb forever when > >> >> start Debian. > >> > > >> > hdparm/sdparm may help. > >> > > >> > But some manufacturers disallow this management on the user side. > >> > > >> > Greetings, > >> > >> Put this line: > >> > >> hdparm -B 255 /dev/sdX > >> > >> in your /etc/rc.local file where X is the corresponding letter for your > >> usb hdd. > >> For getting this to work, your usb hdd has to be pluged in the usb-port > >> during boot up. > >> And you have to ensure that it always has the same "X". > > > > Does hdparm understand uuid's ? > > Probably not, but this could easily be worked around by using a symlink > in /dev/disk/by-uuid. The only problem is that there may not be one for > sdX; at least I don't have a symlink to /dev/sda in /dev/disk/by-uuid, , > only symlinks to /dev/sdaX, i.e. the partitions. > > > The original poster doesn't mention the verson of Debian, Squeeze uses > > uuid's, and if you are using external usb devices, uuid's are a great > > way to make sure the same file system gets mounted appropriately each > > time. > > Maybe the disk name in /dev/disk/by-id could be used instead, there are > symlinks to /dev/sda on my system. > > Sven
Well my mistake, hdparm deals with hard drives and uuid's are for file systems/partitions. i haven't had much luck with usb/sata device naming remaining the same without uuid's though. Seems like anything using sdX could fail at some point. -- Peace, Greg -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/201008171110.18118.gomadtr...@gci.net
