Re: Installation problem

Joel Hatton wrote:
On Mon, 30 Jul 2007 21:46:44 -0700, Garrett Cooper wrote:
Rakhesh is correct.

SATA / PATA drives show up under ad[m]s[n][l], where m is the disk number (zero based), n is the slice, aka partition number in the non-BSD (/Solaris?) world, number (zero based), and l is the respective letter for the partition (it can vary depending on the purpose, a being root, b slice, c all of the disk, [d-j?], other values / relevances.
SCSI / SAS is almost exactly the same. The only difference is 'ad' is replace with 'da'.

There is a difference between SATA and PATA in one respect (and I'm sure
I'll be corrected by a developer if my experience is unique). PATA drives
appear to be allocated ad0-3, SATA drives begin above that. So, ad4 can
(and may in this case) be the first and only fixed disk in the system.
This was certainly the case with my last SATA system.

cheers,
joel
_______________________________________________
freebsd-questions@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscribe@xxxxxxxxxxx"




If there are PATA channels on the motherboard (which there are on most motherboards, I believe) they're most likely the primary and secondary ATA channels, making the SATA channels the third and above. If you have the ATA_STATIC_ID option in the kernel, the SATA drives will then show up ad ad4 and above, whether or not there are any PATA drives connected. With the ATA_STATIC_ID option the primary master is ad0, primary slave is ad1 and so on, whether or not there are any drives connected. If you remove the ATA_STATIC_ID option, the ATA drives (PATA and SATA) will be assigned the lowest number not in use, so with no PATA drives connected, the first SATA drive will be ad0, the second one will be ad1 and so on.

This is my experience, but I'm not a developer, so there may be some twists that I've missed, and if so, I'm sure someone will correct me. :)


--

Vänligen / Sincerly,
Rolf Nielsen
_______________________________________________
freebsd-questions@xxxxxxxxxxx mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-questions
To unsubscribe, send any mail to "freebsd-questions-unsubscribe@xxxxxxxxxxx"

Relevant Pages

  • Re: Question, about drive assignment when boot drive is sata
    ... I'm not familiar with the technical term "re-spun FC5 release", ... the BIOS to tell the system the boot device was the SATA drives so it ... read the old info off the PATA drives and fell flat on its face in some ...
    (Fedora)
  • Re: NAS devices
    ... SATA drives have more future. ... or 10 PATA drives I've got around the house into the bucket. ... You can get eSATA cards for laptops. ...
    (comp.sys.ibm.pc.hardware.storage)
  • Re: Boot Drive Priority - PATA or SATA
    ... It's also easier to find 500GB SATA drives on sale than ... it is to find PATA drives that size. ... It really shouldn't cause any trouble at boot. ...
    (alt.comp.periphs.mainboard.asus)
  • Re: Cant boot off of new SATA drive
    ... You boot from the install CD, select Recovery Console mode, and use the bootcfg utility to alter the boot.ini file. ... You will use Recovery Console mode for the first instance of Windows, the one on the IDE drive, because that is where you need to edit the boot.ini file. ... controller isn't configured to boot from any drives connected to it). ... Windows installed on both your IDE and SATA drives and switch between ...
    (microsoft.public.windowsxp.hardware)
  • Re: Cant boot off of new SATA drive
    ... so I can't tell if "hard drives" includes a SATA device. ... preset settings for the boot drive ordering. ... disconnect all the IDE drives from the IDE ports so the system BIOS ... but I believe other users of SATA drives need the rdisk parameter changed from: ...
    (microsoft.public.windowsxp.hardware)
Loading