Recently I needed to move the /Users tree onto another partition on a OS X machine at work, I found this great howto.

If you need to find the slot that a disk is in from a given logical name (c3t3d0) you can follow this (Broken link http://sunsolve.sun.com/search/document.do?assetkey=1-9-16735-1&searchclause=16735) document from sun. I’ve mirrored the important bits below incase it disapears

1. Determine the UNIX physical device name from the SCSI error message.

SCSI error messages are typically displayed in the system console
       
and logged in the /usr/adm/messages file. 

```

WARNING: /pci@6,4000/scsi@4,1/sd@3,0 (sd228) Error for Command: read(10) Error level: Retryable Requested Block: 3991014 Error Block: 3991269 Vendor: FUJITSU Serial Number: 9606005441 Sense Key: Media Error ASC: 0x11 (unrecovered read error), ASCQ: 0x0, FRU: 0x0

    
    In the example SCSI error message above, the UNIX physical device name is `/pci@6,4000/scsi@4,1/sd@3`.
    
      * Determine the UNIX logical device name by listing the contents of
          
        the `/dev/rdsk` directory.
        
        Use the grep command to filter the output for any occurrence of
          
        the UNIX physical device name determined in Step 1:
        
        ```
% ls -l /dev/rdsk | grep /pci@6,4000/scsi@4,1/sd@3
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s0 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:a,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s1 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:b,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s2 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:c,raw
        lrwxrwxrwx1 root     root        45 Jan 30 09:07 c12t3d0s3 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:d,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s4 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:e,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s5 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:f,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s6 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:g,raw
        lrwxrwxrwx   1 root     root        45 Jan 30 09:07 c12t3d0s7 ->
        ../../devices/pci@6,4000/scsi@4,1/sd@3,0:h,raw

    The resulting output indicates the associated UNIX logical device name.
   
    In this example, the logical device name is `c12t3d0`
    
      * Determine the disk slot number using the `prtconf` command.
        
        Substitute the string disk@ for sd@ in the physical device name determined in Step 1. The result in this example is
      
        `/pci@6,4000/scsi@4,1/disk@3`.
        
        Use the grep command to find this name in the output of the
      
        prtconf command:
        
        ```

% prtconf -vp | grep /pci@6,4000/scsi@4,1/disk@3 slot#11: ‘/pci@6,4000/scsi@4,1/disk@3’

Found this nice collection of daemontools run scripts. Will find that useful someday

If you need to create partitions on a disk (or raid volume) which is larger than 1Tb you will need to use parted and set the disk label to GPT. This is an example session creating 2 1Tb partitions on a 2Tb raid5 volume:

[root@sn-b03 parted]# parted /dev/sdb
GNU Parted 1.6.9
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation,
Inc.

This program is free software, covered by the GNU General Public License.

This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
License for more details.

Using /dev/sdb
Information: The operating system thinks the geometry on /dev/sdb is 291775/255/63.
Therefore, cylinder 1024 ends at 8032.499M.
(parted) mklabel gpt
(parted) mkpart primary 0 1048576
(parted) mkpart primary 1048577 2097152
(parted) p
Disk geometry for /dev/sdb: 0.000-2288754.000 megabytes
Disk label type: gpt
Minor    Start       End     Filesystem  Name                  Flags
1          0.017 -1048576.000  ext3
2     -1048575.000      0.000
(parted) quit
Information: Don't forget to update /etc/fstab, if necessary.

[root@sn-b03 parted]#

If you are writing a bash script and you need to know where you are you can use this:

#!/bin/sh

# always prints out the directory in which this script is lives
# no matter where it is run from

# doesnt cope with ../bin/script.sh, which should be ./script.sh anyway

bn=`basename $0`;
echo $0 | grep "^/" > /dev/null 2>&1

if [ $? -eq 1 ]; then
 echo $0 | grep "^\.\/$bn" > /dev/null 2>&1
 if [ $? -eq 1 ]; then
   echo case 1 - relative ref
   here=`dirname $PWD/$0 | sed 's/\.\///'`
 else
   echo case 2 - local ref
   here=$PWD
 fi
else
 echo case 3 - root ref
 here=`dirname $0`
fi

echo script home is $here

Thanks to Justin for this

Bits inside my pc…

• Motherboard: Asus P4C800 Deluxe Homepage Drivers
  • Graphics card: Asus V9900 Homepage Drivers
    • Wifi card: D-Link AirPlus Xtreme G+ DWL-G520+ Homepage
      • Sound card: Sound Blaster Audigy 2 ZS Homepage Drivers
        • Speakers: Creative Inspire T7700 Homepage

found this nice page which details how to configure various mail clients to filter on a given X-header. Uses for this would be to filter on the X-Spam-Flag: YES header that SpamAssassin adds to mail

I was recently setting up a Jumpstart server and when I ran the setup_install_server script in Solaris_9/Tools I was getting:

ERROR: /cdrom/sol_9_sparc/s0/Solaris_9/Tools/Boot is not a valid install boot image<br /> Check that boot image is valid, or use [-t]<br /> to specify a valid boot image.

The solution is to restart the vold service which can be done with a simple:

# /etc/init.d/volmgt stop<br /> # /etc/init.d/volmgt start

Thanks to Nicholas for pointing this out to me.

Found these two nice links this morning, first a very nice periodic table of perl operators and second, a useful little cgi that helps find out what is installed on your server.

needed this for something I was working on, so though I would leave it here (Broken link http://usefulthings.org.uk/files/common-english-words.txt)