one more time....

On Dec 28, 2007 9:22 PM, James Dickens <[EMAIL PROTECTED]> wrote:

> s
>
> On Dec 5, 2007 4:48 AM, Jürgen Keil <[EMAIL PROTECTED]> wrote:
>
> > > > I use the following on my snv_77 system with 2
> > > > internal SATA drives
> > > > that show up with the 'ahci' driver.
> > >
> > > Thanks for the tip!  I saw my BIOS had a setting for
> > > SATA mode, but the selections are "IDE or RAID".  It
> > > was in IDE and I figured RAID mode just enabled one
> > > of those silly low performance 0/1 settings...Didn't
> > > know it kicked it into AHCI...But it did!
> > >
> > > Unfortunetly my drives aren't recognized now...I've
> > > asked over in the device list what's up....
> >
> > That's the expected behaviour :-/   The physical device path
> > for the root disk has changed by switching the S-ATA
> > controller between P-ATA emulation and AHCI mode, and
> > for that reason the root disk now uses a different device name
> > (e.g. /dev/dsk/c2t0d0s0 instead of /dev/dsk/c0d0s0).
> >
> > The old device name that can be found in /etc/vfstab isn't
> > valid any more.
> >
> > If you have no separate /usr filesystem, this can be fixed
> > with something like this:
> >
> > - start boot from the hdd, this fails when trying to remount the
> >  root filesystem in read/write mode, and offers a single user login
> >
> > - login with the root password
> >
> > - remount the root filesystem read/write, using the physical
> >  device path for the disk from the /devices/... filesystem.
> >  The "mount" command should show you the physical device
> >  path that was used to mount the "/" filesystem read only.
> >
> >  Example for the remount command:
> >
> >  # mount -o remount,rw /devices/[EMAIL PROTECTED],0/pci1043,[EMAIL 
> > PROTECTED]/[EMAIL PROTECTED],0:a /
> >
> > - Run "devfsadm -v" to create new /dev links for the disks (on
> >  the ahci controller)
> >
> > - run "format"; the "AVAILABLE DISK SELECTIONS" menu should show
> >  you the new device name for the disk
> >
> > # format
> > Searching for disks...done
> >
> >
> > AVAILABLE DISK SELECTIONS:
> >       0. c2t0d0 <DEFAULT cyl 48638 alt 2 hd 255 sec 63>
> >          /[EMAIL PROTECTED],0/pci1043,[EMAIL PROTECTED]/[EMAIL PROTECTED],0
> >
> > - now that we know the new disk device name, edit /etc/vfstab
> >  and update all entries that reference the old name with the new
> >  name
> >
> > - reboot
> >
> > Excellent tip, appears to have solved my problem. though my mother board
> had a 3rd option that was AHCI mode, the raid mode didn't work with solaris
> See my blog for system details.
>
>
> James Dickens
> uadmin.blogspot.com
>
>
> >
> > This message posted from opensolaris.org
> > _______________________________________________
> > xen-discuss mailing list
> > [EMAIL PROTECTED]
> >
>
>
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