Custom Query (34 matches)

I'm sending this message to Ben Rietbroek who is working on some OS2AHCI points.

One thing that keeps coming up in some cases is that on systems with an Intel disc controller you need the /R option specified. In some cases the system is able to boot with from the CD but it does not recognize the hard disc. Using the /R option fixes.

In the documentation this is written: /r Reset ports during initialization (default = off

unless the [Intel] AHCI controller was found to

be

initialized by the BIOS in SATA mode)

My question what would the result be to do this by default (to always initialize) the controller. Or will this just "fix" some systems (no user action needed) and make other systems hang ?

Normally an OS/2 driver can be loaded with a /V option so it outputs information. We have an option in our preboot menu of eComStation that switches it on. For example the Danis506.add shows disc output (what controllers are found and what discs are found).

If we specify the /V with the driver it mentioned as an illegal switch and the driver does not load.

Maybe its also more convenient that if a switch is illegal the driver still loads. Instead of not loading. Otherwise you need to boot from to alter the config.sys.

The following scenario we have:

A machine that runs in legacy and AHCI mode in the BIOS. We switch the machine to legacy mode and run with Danis506.add version 1.8.9.

On a 1 .5. TB driver I installed boot manager first. Then I create a primary 200000 MB partition. Then the rest of the drive gets allocated by a logical partition of about 1.3 TB. Both partitions are added to the IBM boot manager. I can format the volumes and they are also listed in the installer as being volumes to which eComStation can be installed.

Then when I switch the BIOS to AHCI mode and load OS2AHCI.ADD driver (version 1.12) everything seems to work just fine!

But when I get to the installer page of eCS 2.1 I get the message no instable volumes where found and that the disc manager will be started (minilvm).

In the table where it says "notes" (the last column to the right in minlvm) it normaly mentions "Bootable " if a volume is added to the boot manager. Now with the AHCI driver loaded does "bootable" flags are gone. If I again load the system in legacy mode and with the DANIS506.ADD driver the bootable flags are displayed again in minilvm.

LVM does not give any error message when its get started. Attached is danis506.txt which is the output of lvm /startlog:. And OS2AHCI.txt which was created with the OS2AHCI.ADD loaded.

So it seems the LVM code is not able to read a portion of the disc. I presume the flags that tell bootmanager what partitions are stored in the bootmanager partition which is at the beginning of the disc. Is this some kind of geometry problem ?