Ubuntu
hdparm package

  1. Bug #227705
  2. Comment #12

Comment 12 for bug 227705

Revision history for this message
christoph (fragfutter) wrote :

running udev in debug mode (udevd --debug --debug-trace) i can see this execution order

1) /lib/udev/rules.d/50-udev-default.rules for sda
2) /lib/udev/rules.d/85-hdparm.rules for sda

3) /lib/udev/rules.d/50-udev-default.rules for sda1
4) /lib/udev/rules.d/85-hdparm.rules for sda1

in 2, the hdparm options get set, the disk goes to sleep. But in 3, blk_id is called against sda1, which spins up the disk again. 4 does not call hdparm.conf as it is a partition