I'm wishing to install 1.5 on an approx. 1.5 year old Ultra10.  After
copying the 1.5 ramdisk.fs onto the swap slice and booting I get
messages like:

pciide0:0:0: lost interrupt
        type: ata tc_bcount: 512 tc_skip: 0
[3 more of these]
wd0c: device timeout reading fsbn: (wd0 bn 0; cn 0 tn 0 sn 0), retrying

After some interations of that, it eventually gets to:

wd0: disk label read error
mountroot: trying msdos...
mountroot: trying cd9660...
mountroot: trying lfs...
mountroot: trying nfs...
mountroot: trying ffs...
no file system for wd0 (dev 0xc01)
cannot mount root, error = 79

My intention was to use this machine for a Kerberos server because I
was thinking that 1.5 was there w.r.t. the Ultra10.  Please stop me if
it's not there yet. :-)

Steve