After a jumpstart install of some systems, such as the Ultra 5, 10, and
possibly others, the following error occurs during reboot -

Rebooting with commands: boot
Boot device: disk  File and args:
SunOS Release 5.6 Version Generic_105181-05 [UNIX(R) System V Release 4.0]
Copyright (c) 1983-1997, Sun Microsystems, Inc.
Cannot load drivers for /pci@1f,0/pci@1,1/ide@3/disk@0,0:a
Can't load the root filesystem
Type  'go' to resume
ok 

Booting the system from the net to single user mode is successful and the 
finish.log is examined with the following messages noted - (these messages
may differ depending on the hardware and OS version involved).


Checking installed patches...
One or more patch packages included in
105570-01 are not installed on this system.

Patchadd is terminating.

Checking installed patches...
Verifying sufficient filesystem capacity (dry run method)...
Installing patch packages...

This appears to be an attempt to install the same architecture and
version of a package which is already installed.  This installation
will attempt to overwrite this package.

/cdrom/Solaris_2.6/Patches/105633-05/SUNWxwcft/install/checkinstall:
/cdrom/Solaris_2.6/Patches/105633-05/SUNWxwcft/install/checkinstall: cannot
open
pkgadd: ERROR: checkinstall script did not complete successfully
Dryrun complete.
No changes were made to the system.
Patch 105633-05 failed to install due to a failure in pkgadd.

See /a/var/sadm/patch/105633-05/log for details

Checking installed patches...
Executing prepatch script...
Verifying sufficient filesystem capacity (dry run method)...
Installing patch packages...

This appears to be an attempt to install the same architecture and
version of a package which is already installed.  This installation
will attempt to overwrite this package.

/cdrom/Solaris_2.6/Patches/105654-03/SUNWcsr/install/checkinstall:
/cdrom/Solaris_2.6/Patches/105654-03/SUNWcsr/install/checkinstall: cannot open
pkgadd: ERROR: checkinstall script did not complete successfully
Dryrun complete.
No changes were made to the system.
Patch 105654-03 failed to install due to a failure in pkgadd.

See /a/var/sadm/patch/105654-03/log for details

Checking installed patches...
Executing prepatch script...
Verifying sufficient filesystem capacity (dry run method)...
Installing patch packages...

This appears to be an attempt to install the same architecture and
version of a package which is already installed.  This installation
will attempt to overwrite this package.

/cdrom/Solaris_2.6/Patches/105924-03/SUNWcsr/install/checkinstall:
/cdrom/Solaris_2.6/Patches/105924-03/SUNWcsr/install/checkinstall: cannot open
pkgadd: ERROR: checkinstall script did not complete successfully
Dryrun complete.
No changes were made to the system.
Patch 105924-03 failed to install due to a failure in pkgadd.

See /a/var/sadm/patch/105924-03/log for details

Checking installed patches...
Verifying sufficient filesystem capacity (dry run method)...
Installing patch packages...

This appears to be an attempt to install the same architecture and
version of a package which is already installed.  This installation
will attempt to overwrite this package.

/cdrom/Solaris_2.6/Patches/106040-03/SUNWxim.l10n/install/checkinstall:
/cdrom/Solaris_2.6/Patches/106040-03/SUNWxim.l10n/install/checkinstall: cannot
open
pkgadd: ERROR: checkinstall script did not complete successfully
Dryrun complete.
No changes were made to the system.
Patch 106040-03 failed to install due to a failure in pkgadd.

See /a/var/sadm/patch/106040-03/log for details
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:a'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:b'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:c'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:d'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:e'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:f'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:g'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:h'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:a,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:b,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:c,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:d,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:e,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:f,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:g,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/dad@0,0:h,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:a'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:b'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:c'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:d'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:e'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:f'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:g'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:h'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:a,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:b,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:c,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:d,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:e,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:f,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:g,raw'
drvconfig: can't create node 'devices/pci@1f,0/pci@1,1/ide@3/atapicd@2,0:h,raw'

Investigation revealed that the OS image on the install server had been
created in a directory with permissions of 700 rather than the 755 that
might normally be expected.

The problem is that when the patches needed to boot the systems mentioned
above try to install the checkinstall script fails to run, patches are not
installed,  and ultimately the reboot will fail due to the inability to load
the appropriate drivers.

The solution is to redo the jumpstart installation after changing the
permissions for the directory containing the OS image to 755, or after
recreating the image  by using setup_install_server to a directory with
755 permissions.

e.g.

# ls -l /export/install/26-598
total 14
-r--r--r--   1 root     root        5592 Apr 24  1998 Copyright
drwxr-xr-x   7 root     root         512 Apr 25  1998 Solaris_2.6
# ls -ld /export/install/26-598
drwx------   4 root     other        512 Apr 19 15:09 /export/install/26-598
# chmod 755 /export/install/26-598
# ls -ld /export/install/26-598
drwxr-xr-x   4 root     other        512 Apr 19 15:09 /export/install/26-598