RH9 Upgrade: Automate Swap File Creation in ks.cfg?

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I've created a kickstart FTP config that I'm using to perform remote, unattended upgrades of some of my >= 6.1 systems to 9. Has worked flawlessly except on those systems for which their was insufficient swap space allocated. Anaconda pops up with the nice little UI prompting for swap file creation. If one responds affirmatively, the upgrade continues and completes successfully. How can I automate the check of this swap file creation? Is there a "standard" way of doing so?

I was just toying with the following idea.  To be added to the %pre stanza:

%pre
# get size of ram and swap

mem=$(grep ^MemTotal: /proc/meminfo | awk '{print $2}')
swap=$(grep ^SwapTotal: /proc/meminfo | awk '{print $2}')
check=$((mem*2))

# create additional swap file, if required

[ $swap -lt $check ] && {

   size=$((check-$swap)

   disk=$(df -t ext2 -t ext3 | sort -k 4n,5 | tail -1)
   part=$(echo $disk | awk '{print $6}')
   avail=$(echo $disk | awk '{print $4}')

   echo "Creating swap file ${part}/swapfile of size $size"

# insufficient disk space on partition with most space to create swap file of required size

   [ $avail -lt $size ] && {

echo "Insufficient free space ($avail) on $part to create swap file of size $size"
       exit 1
   }

   dd if=/dev/zero of=${part}/swapfile bs=1024 count=$size

   chmod 600 ${part}/swapfile

   mkswap ${part}/swapfile

   # find /etc/fstab and add swap file to same - where mounted for install?
}

--

Regards,

Scott Dudley



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