322 lines
7.6 KiB
Bash
Executable File
322 lines
7.6 KiB
Bash
Executable File
#!/bin/sh
|
||
#
|
||
# Purpose {{{
|
||
# This script will try to clean the content of the two firsts hdd
|
||
# 1. Remove everything related to LVM
|
||
# 2. Remove partitions
|
||
#
|
||
# 2021-12-08
|
||
# }}}
|
||
# Vars {{{
|
||
readonly PROGNAME=$(basename "${0}")
|
||
readonly PROGDIR=$(readlink -m $(dirname "${0}"))
|
||
readonly ARGS="${*}"
|
||
readonly NBARGS="${#}"
|
||
[ -z "${DEBUG}" ] && DEBUG=1
|
||
## Export DEBUG for sub-script
|
||
export DEBUG
|
||
|
||
# Default values for some vars
|
||
#readonly MY_VAR_XY_DEFAULT="666"
|
||
|
||
## Colors
|
||
readonly PURPLE='\033[1;35m'
|
||
readonly RED='\033[0;31m'
|
||
readonly RESET='\033[0m'
|
||
readonly COLOR_DEBUG="${PURPLE}"
|
||
# }}}
|
||
usage() { # {{{
|
||
|
||
cat <<- EOF
|
||
usage: $PROGNAME [-d|-h]
|
||
|
||
Remove everything related to /dev/sda and /dev/sdb
|
||
|
||
EXAMPLES :
|
||
- Remove sda and sdb partitions
|
||
${PROGNAME}
|
||
|
||
OPTIONS :
|
||
-d,--debug
|
||
Enable debug messages.
|
||
|
||
-h,--help
|
||
Print this help message.
|
||
|
||
EOF
|
||
|
||
}
|
||
# }}}
|
||
debug_message() { # {{{
|
||
|
||
local_message="${1}"
|
||
|
||
## Print message if DEBUG is enable (=0)
|
||
[ "${DEBUG}" -eq "0" ] && printf '\e[1;35m%-6b\e[m\n' "DEBUG − ${PROGNAME} : ${local_message}"
|
||
|
||
return 0
|
||
}
|
||
# }}}
|
||
error_message() { # {{{
|
||
|
||
local_error_message="${1}"
|
||
local_error_code="${2}"
|
||
|
||
## Print message if DEBUG is enable (=0)
|
||
[ "${DEBUG}" -eq "0" ] && printf '%b\n' "ERROR − ${PROGNAME} : ${RED}${local_error_message}${RESET}"
|
||
|
||
exit "${local_error_code:=66}"
|
||
}
|
||
# }}}
|
||
install_dependencies() { # {{{
|
||
|
||
## Update APT repositories {{{
|
||
## OR exit
|
||
debug_message "install_dependencies − \
|
||
Update repositories…"
|
||
apt update > /dev/null \
|
||
|| exit 1
|
||
## }}}
|
||
|
||
## Install dependencies {{{
|
||
## OR exit
|
||
debug_message "install_dependencies − \
|
||
Install some packages…"
|
||
apt install -y coreutils e2fsprogs gawk lvm2 thin-provisioning-tools parted util-linux > /dev/null \
|
||
|| exit 2
|
||
## }}}
|
||
|
||
}
|
||
# }}}
|
||
is_vg_available() { # {{{
|
||
|
||
## Return False by default
|
||
return_is_vg_available="1"
|
||
|
||
## If at least 1 VG is available
|
||
if [ `vgs --noheadings | wc --line` -gt 0 ]; then
|
||
debug_message "is_vg_available − \
|
||
At least one Volume Group is ${RED}available${COLOR_DEBUG}."
|
||
return_is_vg_available="0"
|
||
else
|
||
debug_message "is_vg_available − \
|
||
${RED}No${COLOR_DEBUG} Volume Group available on this host."
|
||
return_is_vg_available="1"
|
||
fi
|
||
|
||
return "${return_is_vg_available}"
|
||
|
||
}
|
||
# }}}
|
||
remove_vg() { # {{{
|
||
|
||
local_vg_name="${1}"
|
||
|
||
## Return False by default
|
||
return_remove_vg="1"
|
||
|
||
## If the Volume Group is successfully removed
|
||
if vgremove "${local_vg_name}" ; then
|
||
debug_message "remove_vg − \
|
||
${local_vg_name} Volume Group was successfully ${RED}removed${COLOR_DEBUG}."
|
||
return_remove_vg="0"
|
||
else
|
||
debug_message "remove_vg − \
|
||
Error with ${RED}vgremove${COLOR_DEBUG} command."
|
||
return_remove_vg="1"
|
||
fi
|
||
|
||
return "${return_remove_vg}"
|
||
|
||
}
|
||
# }}}
|
||
is_pv_available() { # {{{
|
||
|
||
## Return False by default
|
||
return_is_pv_available="1"
|
||
|
||
## If at least 1 PV is available
|
||
if [ `pvs --noheadings | wc --line` -gt 0 ]; then
|
||
debug_message "is_pv_available − \
|
||
At least one Physical Volume is ${RED}available${COLOR_DEBUG}."
|
||
return_is_pv_available="0"
|
||
else
|
||
debug_message "is_pv_available − \
|
||
${RED}No${COLOR_DEBUG} Physical Volume available on this host."
|
||
return_is_pv_available="1"
|
||
fi
|
||
|
||
return "${return_is_pv_available}"
|
||
|
||
}
|
||
# }}}
|
||
remove_pv() { # {{{
|
||
|
||
local_pv_path="${1}"
|
||
|
||
## Return False by default
|
||
return_remove_pv="1"
|
||
|
||
## If the Physical Volume is successfully removed
|
||
if pvremove "${local_pv_path}" ; then
|
||
debug_message "remove_pv − \
|
||
${local_pv_path} was successfully ${RED}removed${COLOR_DEBUG}."
|
||
return_remove_pv="0"
|
||
else
|
||
debug_message "remove_pv − \
|
||
Error with ${RED}pvremove${COLOR_DEBUG} command."
|
||
return_remove_pv="1"
|
||
fi
|
||
|
||
return "${return_remove_pv}"
|
||
|
||
}
|
||
# }}}
|
||
|
||
main() { # {{{
|
||
|
||
## Install dependencies
|
||
install_dependencies
|
||
|
||
## If a Volume Group is available {{{
|
||
## AND Disable all Volume Group (and related Logical Volumes)
|
||
while is_vg_available; do
|
||
### Get first Volume Group name
|
||
vg_name=$(vgs --noheadings | awk '{ print $1; exit }')
|
||
|
||
### Ensure to disable all Volume Group
|
||
debug_message "main − \
|
||
Disable all Volume Group and related Logical Volumes."
|
||
vgchange --quiet --activate n
|
||
|
||
### Try to remove the Volume Group
|
||
### OR exit
|
||
remove_vg "${vg_name}" \
|
||
|| error_message "Error while trying to remove ${vg_name} Volume Group. Use --debug option for more informations." 3
|
||
done
|
||
## }}}
|
||
|
||
## If a Physical Volume is available {{{
|
||
while is_pv_available; do
|
||
### Get first Physical Volume path
|
||
pv_path=$(pvs --noheadings | awk '{ print $1; exit }')
|
||
|
||
debug_message "main − \
|
||
Try to manage ${RED}${pv_path}${COLOR_DEBUG} Physical Volume."
|
||
|
||
### Try to remove the Physical Volume
|
||
### OR exit
|
||
remove_pv "${pv_path}" \
|
||
|| error_message "Error while trying to remove ${pv_path} Physical Volume. Use --debug option for more informations." 4
|
||
done
|
||
## }}}
|
||
|
||
## If a Physical Volume is available {{{
|
||
while is_pv_available; do
|
||
### Get first Physical Volume path
|
||
pv_path=$(pvs --noheadings | awk '{ print $1; exit }')
|
||
|
||
debug_message "main − \
|
||
Try to manage ${RED}${pv_path}${COLOR_DEBUG} Physical Volume."
|
||
|
||
### Try to remove the Physical Volume
|
||
### OR exit
|
||
remove_pv "${pv_path}" \
|
||
|| error_message "Error while trying to remove ${pv_path} Physical Volume. Use --debug option for more informations." 4
|
||
done
|
||
## }}}
|
||
|
||
# Remove all old partitions for sda and sdb {{{
|
||
for hdd in /dev/sda /dev/sdb; do
|
||
## Start partition number to 32
|
||
part_number="32"
|
||
while [ "${part_number}" -gt 0 ]
|
||
do
|
||
### If partition exists {{{
|
||
if [ -b "${hdd}${part_number}" ]; then
|
||
debug_message "main − \
|
||
Try to remove ${hdd}${part_number} partition."
|
||
|
||
parted "${hdd}" rm "${part_number}" \
|
||
|| error_message "Can't remove ${hdd}${part_number} partition." 5
|
||
fi
|
||
### }}}
|
||
|
||
### Decrease partition number
|
||
part_number=$(($part_number-1))
|
||
done
|
||
done
|
||
## }}}
|
||
|
||
printf '%b\n' "All disks were successfully cleaned. \
|
||
You can reboot the system to update mtab."
|
||
|
||
}
|
||
# }}}
|
||
|
||
# Manage arguments # {{{
|
||
# This code can't be in a function due to argument management
|
||
|
||
if [ ! "${NBARGS}" -eq "0" ]; then
|
||
|
||
manage_arg="0"
|
||
|
||
## If the first argument is not an option
|
||
if ! printf -- '%s' "${1}" | grep -q -E -- "^-+";
|
||
then
|
||
## Print help message and exit
|
||
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
|
||
printf '%b\n' "---"
|
||
usage
|
||
|
||
exit 1
|
||
fi
|
||
|
||
# Parse all options (start with a "-") one by one
|
||
while printf -- '%s' "${1}" | grep -q -E -- "^-+"; do
|
||
|
||
case "${1}" in
|
||
-d|--debug ) ## debug
|
||
DEBUG=0
|
||
;;
|
||
-h|--help ) ## help
|
||
usage
|
||
## Exit after help informations
|
||
exit 0
|
||
;;
|
||
#-v|--var ) ## Define var with given arg
|
||
### Move to the next argument
|
||
#shift
|
||
### Define var
|
||
#readonly my_var_xy="${1}"
|
||
#;;
|
||
* ) ## unknow option
|
||
printf '%b\n' "${RED}Invalid option: ${1}${RESET}"
|
||
printf '%b\n' "---"
|
||
usage
|
||
exit 1
|
||
;;
|
||
esac
|
||
|
||
debug_message "Arguments management − \
|
||
${RED}${1}${COLOR_DEBUG} option managed."
|
||
|
||
## Move to the next argument
|
||
shift
|
||
manage_arg=$((manage_arg+1))
|
||
|
||
done
|
||
|
||
debug_message "Arguments management − \
|
||
${RED}${manage_arg}${COLOR_DEBUG} argument(s) successfully managed."
|
||
else
|
||
debug_message "Arguments management − \
|
||
No arguments/options to manage."
|
||
fi
|
||
|
||
# }}}
|
||
|
||
main
|
||
|
||
exit 0
|