qubes-installer-qubes-os/anaconda/scripts/anaconda-pre-log-gen

#! /bin/bash
# Script to be run by anaconda-pre service before anaconda starts to gather
# information about previous system state

# where the resulting logs will be stored
TARGET_DIRECTORY=/tmp/pre-anaconda-logs

BOOT_OPTIONS_FILE=/proc/cmdline

DEBUG_ENABLED=`cat $BOOT_OPTIONS_FILE | egrep -c "\<debug\>|\<inst\.debug\>"`

# do not produce any logs unless debug is enabled
[ $DEBUG_ENABLED == '0' ] && exit 0

mkdir ${TARGET_DIRECTORY}

lsblk -a > ${TARGET_DIRECTORY}/block_devices.log
dmesg > ${TARGET_DIRECTORY}/kernel_ring_buffer.log

lvmdump -d ${TARGET_DIRECTORY}/lvmdump