On Wed, Aug 27, 2008 at 5:33 PM, Miles Nordin <[EMAIL PROTECTED]> wrote:
> >>>>> "t" == Tim <[EMAIL PROTECTED]> writes: > > t> Solaris does not do this. > > yeah but the locators for local disks are still based on > pci/controller/channel not devid, so the disk will move to a different > device name if he changes BIOS from pci-ide to AHCI because it changes > the driver attachment. This may be the problem preventing his bootup, > rather than the known AHCI bug. > Except he was, and is referring to a non-root disk. If I'm using raw devices and I unplug my root disk and move it somewhere else, I would expect to have to update my boot loader. > Linux device names don't move as much if you use LVM2, as some of the > distros do by default even for single-device systems. Device names > are then based on labels written onto the drive, which is a little > scary and adds a lot of confusion, but I think helps with this > moving-device problem and is analagous to what it sounds like ZFS > might do on the latest SXCE's that don't put zpool.cache in the boot > archive. > LVM hardly changes the way devices move around in Linux, or it's horrendous handling of /dev. You are correct in that it is a step towards masking the ugliness. I, however, do not consider it a fix. Unfortunately it's not used in the majority of the sites I am involved in, and as such isn't any sort of help. The administration overhead it adds is not worth the hassle for the majority of my customers. --Tim
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