Re: [gentoo-user] help with Persistent hard disk device names with udev

[Pau Peris <sibok1981@gmail.com>]

Thx a lot!

2010/8/30 J. Roeleveld <joost@antarean.org>:
> On Monday 30 August 2010 15:00:28 Pau Peris wrote:
>> Hi, i would like to give persistent device names to the system hard
>> drives (just renaming its original device name to the one i want using
>> its serial number as identifier). I've created the following rules
>> which are not currently working. I'm trying to use device serial
>> numbers to properly set its device name. One of the main reasons for
>> doing that is i have a RAID composed by 3 disk (let's say sda sdc sdd)
>> and when i plug another 4 disks sda becomes sde, sdc becomes sdg and
>> so on while new drives take old device names, that's why i would like
>> to make it sure device names remains always the same.
>> Here are the rules
>> Código:
>>
>> SUBSYSTEM=="block", ATTR{serial}="VNVB05G2RKTRZH", NAME="hda"
>> SUBSYSTEM=="block", ATTR{serial}="9QK0T4WM", NAME="sda"
>> SUBSYSTEM=="block", ATTR{serial}="3QD0X58D", NAME="sdb"
>> SUBSYSTEM=="block", ATTR{serial}="9QK0RS9G", NAME="sdc"
>> SUBSYSTEM=="block", ATTR{serial}="9VP0SBVN", NAME="sdc"
>>
>> KERNEL=="hd*", SUBSYSTEM=="block", ATTR{serial}="VNVB05G2RKTRZH",
>> NAME="hda%n" KERNEL=="sd*", SUBSYSTEM=="block", ATTR{serial}="9QK0T4WM",
>> NAME="sda%n" KERNEL=="sd*", SUBSYSTEM=="block", ATTR{serial}="3QD0X58D",
>> NAME="sdb%n" KERNEL=="sd*", SUBSYSTEM=="block", ATTR{serial}="9QK0RS9G",
>> NAME="sdc%n" KERNEL=="sd*", SUBSYSTEM=="block", ATTR{serial}="9VP0SBVN",
>> NAME="sdc%n"
>>
>> Should this work? Do some one know how can i get it to work? thanks in
>> advanced
>
> Hi,
>
> You need to use double "=" for all the fields you want to match.
> In other words, for sda, you need to use:
>> SUBSYSTEM=="block", ATTR{serial}=="9QK0T4WM", NAME="sda"
> instead of:
>> SUBSYSTEM=="block", ATTR{serial}="9QK0T4WM", NAME="sda"
>
> Otherwise it doesn't match it correctly or will try to change the serial for
> the all the block-devices it finds.
>
> (I found this out when trying to rename my network-interfaces)
>
> --
> Joost
>
>