En news:
[email protected], Rod Speed va escriure:
Thats a lousy way to test the claim that the rdisk()
parameter refers to the entry in the boot order list.
Remark: As I said long ago, I do not agree with that claim in general, just
in particular, not common, cases.
The only sensible way to test THAT claim is with the simplest
config of 3 hard drives, with the only boot.ini on the drive at the
top of the boot order list and swapping the order of the two
other drives which are below that in the boot order list
Well, results are quite funny.
Computer A, MSI-7032 (2004), AMI BIOS, K8M800 chipset (from memory, I do not
have the computer handy.) The IDE disks "below the first" do not show up in
any list. End of this test.
Computer(s) B, several Dell (2001-2005, Latitude 8100/4300/4600, Optiflex
115/150/260/270), so derivatives of Phoenix. The only list where the disks
"below the first" show up is the "Boot menu" (obtained with F10), which
allows to select a different disk to be the first one for that boot only (by
renumbering the disks, giving it the 80h ribbon). No way I can find to
change the order of the disks "below the first."
I have also a PowerEdge830, but it only has one IDE channel, and lacks the
F10 feature (or I missed it); at any rate I did not spot any list where the
IDE disks can be reordered.
Computer T, Dell XPS [Tim]. There _seems_ to be a "Hard Disk Boot order"
list, which is fully editable, and the positions there determine the BIOS
ordinal numbers.
I do not have currently a (recent) Award computer with several disks handy,
sorry; nor did I test the case where the 80h disk does not have the valid
(active) MBR yet forces a Int18 to boot the 81h disk (this one could be
interesting.)
In fact, I would be interested by what you folks understand as "the boot
order list", _including_ all bootable IDE disks ;-).
OK, I already got Tim's
no need to reiterate.
Also, I notice some BIOSes list HDD-1 to HDD-3 along with the traditionnal
A:, C:, CD-ROM, PXE etc. in the "IPL table"; (I should resurrect some
oldtimers since I seem to remember seeing this once); but this is NOT
universal behaviour as we can see from the above...
Perhaps reserved to the high-end boards? (I said that because I understand I
conducted all my tests with value-for-money computers.)
By the way, on computer A, the SATA disks are enumerated as several BCV
(clearly, main BIOS dated 2004 does not know about SATA), so I can reorder
them; as you select any of them, _all_ the SATA disks get the lowest
numbers; something similar occurs with USB, although it is quite of brocken
(there is only one BCV, even when it detects several devices).
That is, not only the relative position for the IDE disks is not editable,
but the various lists for the varying controllers behave as monolithic
entities.
Again
, the best position is, it varies.
Antoine