Problem with random disks mount sequence
Les Mikesell
lesmikesell at gmail.com
Wed Dec 12 19:34:46 UTC 2007
Alan Cox wrote:
>>
>>>>> That still doesn't explain why the order of mounting (and of scsi
>>>>> discovering?) is shuffled
>>>> I'm sure it was explained somewhere in this thread. The device names
>>>> are named in the order that the BIOS discovers them. If it checks the
>>>> USB ports first, they get the names first.
>>> The kernel order depends on the load order of drivers not the BIOS order.
>>> The BIOS order information is there via the EDD interface and could in
>>> theory be used to make links but afaik nobody uses it.
>>>
>>> BIOS order is also far weaker than labels as it may change when a drive
>>> fails or you swap a card.
>> What do you call the drive partition when you are creating the label?
>
> The installer normally labels volumes ROOT USR HOME etc, you can change
> this and my partitions often get relabelled with suitably silly names.
I'm starting to build a box that will have an assortment of scsi and
sata disks, most, but not all paired in md raid1 devices and expect to
have a few hotplug sata and external USB and firewire drives that will
be connected periodically. Do you have any hints on how to write a
script that will copy things to the recently-mounted drive(s) and how to
avoid boot problems if any of them happen to be connected during a
reboot? Will the md devices always find/pair themselves regardless of
the underlying partition device names?
--
Les Mikesell
lesmikesell at gmail.com
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