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Hi, When I install a system using Cobbler using kickstart/snippet, I want to only do the partitioning of 1. Internal only disk 2. Only one disk, if multiple exist 3. Handle RAID/non-RAID scenarios Is there a good/reliable way in Linux (RHEL and Fedora specifically) to determine #1? Since we are in the installation environment, some commands (like lsscsi) aren’t available. Here’s what I’m using in my snippet currently. ======== BEGIN SNIPPET ============ # Look for any 'scsi' or 'cciss' device; weed out output with partitions of those
# devices (part) and cd/dvd devices (sr); grab the first line of the remaining output. # Assumption is first scsi device is "internal" disk. We want to partition only # the first internal disk. ls_output=\$(ls -l /dev/disk/by-path/pci* | grep -i -e scsi -e cciss | grep -v -i -e part -e sr | head -n 1) # If we did not get any proper data for disk devices, just let anaconda do auto partitioning # and use all/whatever disks anaconda finds, rather than throw an error. if [[ -z "$ls_output" ]] then ks_partition_cmd="" else # NOTE: we are parsing a output that looks like this: # lrwxrwxrwx. 1 root root 9 Jun 18 13:01 /dev/disk/by-path/pci-0000:0c:00.0-scsi-0:0:0:1 -> ../../sda device_symlink=\$(echo \$ls_output | awk '{print \$11}') if [[ ! -z \$(echo \$device_symlink | grep -i sd) ]] then # The first internal disk is a non-RAID disk. # Remove the "../../" prefix in "../../sda" first_internal_disk_name=\${device_symlink\#\#*/} else # The first internal disk is a RAID disk. # Remove the "../../" prefix in "../../cciss/c0d0" first_internal_disk_name=\$(echo \$device_symlink | awk -F'/' '{print \$(NF-1)"/"\$NF}') fi ks_partition_cmd="ignoredisk --only-use=\$first_internal_disk_name" fi # Allow anaconda to partition the system as needed # using just the first disk cat <<PART_EOF > /tmp/partition_info autopart $ks_partition_cmd PART_EOF ======== END SNIPPET ============ Thanks Balaji |
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