On 2007/09/20 21:00 (GMT+0200) Andreas Jaeger apparently typed:

> Felix Miata wr0te:

>> On 2007/09/20 00:44 (GMT-0600) [EMAIL PROTECTED] apparently typed:

>>> https://bugzilla.novell.com/show_bug.cgi?id=218122

>>> --- Comment #25 from Andreas Jaeger <[EMAIL PROTECTED]>  2007-09-20 
>>> 00:44:01 MST ---
>>> See the release notes

>> They don't say what one should find in /dev as a result of running
>> activate_dm_linear or what if anything people running >15 on SATA can do or
>> expect.

> Ignore activate_dm_linear, it's really not working.

> Btw. you even get a popup which advises to use "hwprobe=-modules.pata".

I haven't seen that yet, but I haven't been past the first YaST screen in
over a month.

>> Tentative release notes for 10.3 seem to be nicely hidden, not yet on
>> http://en.opensuse.org/Release_Notes. It would be nice to see
>> http://www.suse.com/relnotes/i386/openSUSE/10.2/RELEASE-NOTES.en on
>> http://en.opensuse.org/Factory and/or 
>> http://en.opensuse.org/Development_Version

>>> (and bug # 305095)-

>> I've been following that and every other related bug (keyword >15). Most of
>> what's in them seems pretty cryptic. I would expect running
>> activate_dm_linear /dev/sda at the start of an RC1 install should produce
>> some evidence that anything happened in /dev, but I don't see it.

> As I've said: It misses some files in the inst.sys and therefore just
> does not work in RC1.

If that's referring to https://bugzilla.novell.com/show_bug.cgi?id=326692 I'd
like some notification when it hits the factory mirrors instead of waiting
over a week for RC2.

>>> and use "hwprobe=-modules.pata" to
>>> not use libata at all.

>> I don't see how that could be of any help on SATA systems with >15
>> partitions. I already use it on PATA.

> A SATA system with > 15 partitions was never ever supported!

I well understand that. However
https://bugzilla.novell.com/show_bug.cgi?id=218122 summary says "Support more
than 15 partitions on libata", not "Support more than 15 partitions on PATA
on libata". Unless I grossly misunderstand the nature of libata, I expect
libata to mean libata HD support regardless whether used for PATA or SATA.

If I'm not wrong in my understanding, and yet >15 on SATA is unlikely to be
supported now or within next year or so, then the summary of that bug seems
to be wrong, and should be changed to remove any implication of applicability
to SATA either now or in the future.

> If you
> want that, then use LVM. 

That may be fine for most people, as that's apparently what the kernel
developers expect, as well as the only offering for Fedora users. It's not so
good for people with a tried and true multiboot creation, maintenance, backup
and restore strategy based upon cloning/copying partitions and a minimal
number of physical hard disks per system. LVM is no solution to many of us
with true multiboot of multiple versions of Linux and other operating systems
(more than ~3 total). LVM is not OS agnostic. On systems that use it, systems
that don't understand it have to work around it, which to my knowledge as a
user of >15 on multiple systems for many years is simply not practical.

IOW, if >15 is never to be supported on SATA, those of us committed to >15
are committed to having to buy converter gadgets to use SATA drives as PATA
drives as the old PATA drives need replacement[1], and to keeping legacy
systems operational well beyond expected lifetimes, since new motherboards
omit PATA controllers, and PATA add-in cards are treated as SCSI cards not
under boot order control of the PC system BIOS.

It's really absurd that as HD sizes continue to escalate that users should be
forced to using ever stupidly larger partitions due to the kernels arbitrary
limitation of 14 replacing the traditional 62. A limit of 14 on a 500GiB
drive means either average partition size over 10 times the size of my
current average partition size, or wasting 80% or more of the disk to keep
partitions to a manageable size for backup and pruning purposes.

[1] Seagate, world's largest HD supplier, has already announced imminent
cessation of PATA drive production.

> the activate_dm_linear solution would only
> help with updating existing PATA systems.

Does this mean it could not be applied to SATA, or merely that was not the
intent of creating a solution for upgrading systems with >15 on PATA?

>>> The workaround from Hannes needs some more work we will do for RC2 - but 
>>> even
>>> then it will not be nicely integrated and only something for a real hacker. 

>> From what I can tell in the relevant bugs, activate_dm_linear seems simple
>> enough for an unreal hacker to manage. I've been ready for quite some time if
>> only I could find functional guidance on what to do or evidence that anything
>> resulted from what I did.

>>> This needs more work for 11.0.

>> Obviously. :-p I feel like the progress so far is behind a locked door to
>> which the public key is hidden by secret code, or doesn't exist.

>>> The general advise really is to use hwprobe=-modules.pata - this works just
>>> fine.

On Mandriva Cooker 2008 it's conceptually simpler, even though it requires an
extra step, because it's easier to remember. On the kernel line one appends
the six letters "noauto", after which the installer allows explicit selection
of the driver to be used for PATA.

>> On SATA?

>> What is FATE?

> FATE is our FeAture Tracking Tool

Is it, as it applies to OpenSUSE, Novell internal access only? If not, an URL
to it's OpenSUSE-applicable home would be nice.

On 2007/09/20 21:01 (GMT+0200) Andreas Jaeger apparently typed:

> Carlos E. R. wrote:

>> The Thursday 2007-09-20 at 09:19 -0400, Felix Miata wrote:

>>> They don't say what one should find in /dev as a result of running
>>> activate_dm_linear or what if anything people running >15 on SATA can do or
>>> expect.

>> I think they would appear under /dev/mapper/. I have used the device
>> mapper thing previously (for encrypted filesystems in old twofishSL92
>> format), but I know pretty little about it, close to nothing. I believe it
>> can be a very interesting piece of gadgetry, but I haven't seen any user
>> documentation. A howto.

> Hannes promised me to write a howto in the openSUSE wiki.

Excellent. Thanks in advance.

> But with RC1
> it just does not work because two binaries are missing in the inst.sys,

I'm anxiously awaiting a factory mirror sync that includes this. Lack of
ability to test this has previously just missed beta/rc release cuts a few
times already. It seems Hannes has been the only one in a position to even
try out his work.
-- 
"It yet remains a problem to be solved in human affairs,
whether any free government can be permanent, where the
public worship of God, and the support of religion,
constitute no part of the policy or duty of the state in
any assignable shape."
                             Chief Justice Joseph Story

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

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