Re: [RFC] Separating out libata out of SCSI (finally)

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On 2008/06/25 00:49 (GMT+0900) Tejun Heo apparently typed:

> Felix Miata wrote:

>> On 2008/06/24 23:59 (GMT+0900) Tejun Heo apparently typed:

>>> I'm currently working on a scheme where partitions above gd->minors get
>>> allocated dynamic MAJ:MIN.  It looks like it can be done mostly in block
>>> layer proper.  The only problem I can foresee is not being able to
>>> specify MAJ:MIN as root device but that shouldn't be a major problem.
>>> I'll report back when I make more progress.

>> Please correct me if I'm wrong, but on the following, would it not
>> be a major problem booting, without deleting any existing or moving
>> any existing, with only a few more upgrade cycles to replace what's
>> there installed now with current and near future distros?

> I'm not sure what you mean.  If you switch to libata now, you'll only be
> able to see 15 partitions, so, yes, you'll have problem updating to a

Well, on the Fedora 9 on hda9 that is already the case, as it provided no
option to not use libata. ;-)

> distro which uses libata now and in near future.  If the dynamic
> partition thing goes well, hopefully the next major distro releases work
> fine.

I responded as I did due to your statement "only problem I can foresee is not
being able to specify MAJ:MIN as root device", hoping to see some elaboration
on the statement from you. I read your statement as "don't expect to be able
to use any partition >15 as a root device". So, in the past root=3:17 would
have been a valid replacement for root =/dev/hda17? If so, sorry for the
noise, as I'd never seen that type of usage, and certainly would not miss it.
-- 
"Where were you when I laid the earth's
foundation?"		       Matthew 7:12 NIV

 Team OS/2 ** Reg. Linux User #211409

Felix Miata  ***  http://fm.no-ip.com/
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