112 lines
No EOL
2.6 KiB
Bash
112 lines
No EOL
2.6 KiB
Bash
#!/bin/bash
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# Script to resize LVM partition after expanding disk in Proxmox
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# Must be run as root
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# Exit on any error
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set -e
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# Function to check if running as root
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check_root() {
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if [ "$(id -u)" != "0" ]; then
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echo "Error: This script must be run as root" >&2
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exit 1
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fi
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}
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# Function to check if required tools are installed
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check_requirements() {
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local required_tools=("parted" "pvresize" "lvresize" "resize2fs")
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for tool in "${required_tools[@]}"; do
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if ! command -v "$tool" >/dev/null 2>&1; then
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echo "Error: Required tool '$tool' is not installed" >&2
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exit 1
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fi
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done
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}
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# Function to verify LVM setup
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verify_lvm() {
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if ! vgs ubuntu-vg >/dev/null 2>&1; then
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echo "Error: Volume group 'ubuntu-vg' not found" >&2
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exit 1
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fi
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if ! lvs ubuntu-vg/ubuntu-lv >/dev/null 2>&1; then
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echo "Error: Logical volume 'ubuntu-lv' not found" >&2
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exit 1
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fi
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}
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# Function to backup partition table
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backup_partition_table() {
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local backup_file="/root/partition_backup_$(date +%Y%m%d_%H%M%S).bak"
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echo "Creating partition table backup at $backup_file"
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sfdisk -d /dev/sda > "$backup_file"
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}
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# Main resize function
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perform_resize() {
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echo "Starting disk resize process..."
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# Resize partition using parted
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echo "Resizing partition..."
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parted -s /dev/sda resizepart 3 100%
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# Give system time to register new partition size
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sleep 2
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echo "Resizing physical volume..."
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pvresize /dev/sda3
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echo "Resizing logical volume..."
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lvresize -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
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echo "Resizing filesystem..."
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resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv
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}
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# Function to verify successful resize
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verify_resize() {
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echo "Verifying resize operation..."
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# Check if filesystem is clean
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if ! e2fsck -n /dev/mapper/ubuntu--vg-ubuntu--lv >/dev/null 2>&1; then
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echo "Warning: Filesystem check recommended after resize" >&2
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fi
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# Display new size information
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echo -e "\nNew disk space information:"
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df -h /
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lvs ubuntu-vg/ubuntu-lv
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}
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# Main execution
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main() {
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echo "Starting LVM disk resize script..."
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# Run checks
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check_root
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check_requirements
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verify_lvm
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# Create backup
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backup_partition_table
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# Perform resize
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perform_resize
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# Verify results
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verify_resize
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echo -e "\nDisk resize completed successfully!"
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}
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# Execute main function with error handling
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if main; then
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exit 0
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else
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echo "Error: Resize process failed" >&2
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exit 1
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fi |