Tip/warning about Leopard permissions fixing under pre 10.5 systems

Hi,

I just saw this on Alsoft website and I wanted to share since it was
exactly what I would do from my 10.4.10 partition if I have installed
Leopard.

Do not attempt to fix Leopard permissions from Pre Leopard OS X
partitions or boot DVD/CDs.

http://www.alsoft.com/DiskWarrior/support.html (content may change)

Pasting full article:

1) You should not use any utility to repair permissions of a Leopard
start up disk while started from Mac OS X 10.4.x or earlier.
Permissions will either not be be repaired or will be repaired
improperly. This is true whether you repair permissions with Apple's
Disk Utility, DiskWarrior, or any other third-party utility. Regardless
of which utility you use, the same service within Mac OS X is used to
perform the actual permissions repair so the behavior is always the
same.

To repair permissions of a Leopard startup disk, be sure you've always
started your Mac from Leopard. Alsoft also recommends using only the
Disk Utility included with Leopard to repair permissions until an
updated version of DiskWarrior is released.

Note: If you have used any utility to repair permissions of a Leopard
startup disk while started from Mac OS X 10.4 or earlier, Alsoft
recommends that you perform an upgrade install of Leopard over your
existing Leopard install. This will restore any changed permissions to
their original values without altering your data.

Ilgaz

Ilgaz Öcal wrote:
> Hi,
>
> I just saw this on Alsoft website and I wanted to share since it was
> exactly what I would do from my 10.4.10 partition if I have installed
> Leopard.
>
> Do not attempt to fix Leopard permissions from Pre Leopard OS X
> partitions or boot DVD/CDs.
>
> http://www.alsoft.com/DiskWarrior/support.html (content may change)
>
> Pasting full article:
>
> 1) You should not use any utility to repair permissions of a Leopard
> start up disk while started from Mac OS X 10.4.x or earlier. Permissions
> will either not be be repaired or will be repaired improperly. This is
> true whether you repair permissions with Apple's Disk Utility,
> DiskWarrior, or any other third-party utility. Regardless of which
> utility you use, the same service within Mac OS X is used to perform the
> actual permissions repair so the behavior is always the same.
>
> To repair permissions of a Leopard startup disk, be sure you've always
> started your Mac from Leopard. Alsoft also recommends using only the
> Disk Utility included with Leopard to repair permissions until an
> updated version of DiskWarrior is released.
>
> Note: If you have used any utility to repair permissions of a Leopard
> startup disk while started from Mac OS X 10.4 or earlier, Alsoft
> recommends that you perform an upgrade install of Leopard over your
> existing Leopard install. This will restore any changed permissions to
> their original values without altering your data.
>
> Ilgaz
>

Heh. As far as I can recall, I've never done a repair permissions
before, but Apple's own utility, run after I boot from the install dvd,
causes the system to hang.

Fun stuff.

Makes one wonder how many dozens of computers Apple tested Leopard on
before shiping? 1/2? 1/4?

On 2007-11-12 07:26:02 +0200, Lawson English <> said:

>> To repair permissions of a Leopard startup disk, be sure you've always
>> started your Mac from Leopard. Alsoft also recommends using only the
>> Disk Utility included with Leopard to repair permissions until an
>> updated version of DiskWarrior is released.
>>
>> Note: If you have used any utility to repair permissions of a Leopard
>> startup disk while started from Mac OS X 10.4 or earlier, Alsoft
>> recommends that you perform an upgrade install of Leopard over your
>> existing Leopard install. This will restore any changed permissions to
>> their original values without altering your data.
>>
>> Ilgaz
>>
>
> Heh. As far as I can recall, I've never done a repair permissions
> before, but Apple's own utility, run after I boot from the install dvd,
> causes the system to hang.
>
> Fun stuff.
>
> Makes one wonder how many dozens of computers Apple tested Leopard on
> before shiping? 1/2? 1/4?

In my logic (that is why I rushed this post), Disk Utility should check
/Library/Receipts for packages and some system directory packages to
get correct rights on the disk which permissions repaired and
repair/alert as neccessary. As far as I know, until Leopard, you could
even use 10.2.8 repair permissions to Tiger boot disk.

I have no clue what they changed and why?

Ilgaz

Ilgaz Öcal <> wrote:

> I have no clue what they changed and why?

One thing that changed with Leopard is that ACL is now enabled on all
volumes by default, but I too have no clue whether that has anything to
do with Alsoft's warning about repairing permissions.

Neill Massello <> wrote:

> Ilgaz Öcal <> wrote:
>
> > I have no clue what they changed and why?
>
> One thing that changed with Leopard is that ACL is now enabled on all
> volumes by default, but I too have no clue whether that has anything to
> do with Alsoft's warning about repairing permissions.

Another difference is that /Library/Receipts has undergone a significant
overhaul and rearrangement. Earlier versions won't know what to make of
it. There are now "boms" and "db" subdirectories that weren't there
before.

--
David Empson