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proxmox/chr_install.sh: default extra disk size to 256M #19

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Merged
gpas45 merged 1 commit into from
Jun 12, 2026
Merged

proxmox/chr_install.sh: default extra disk size to 256M #19

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16 changes: 11 additions & 5 deletions proxmox/chr_install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@ VM_SOCKETS=1
VM_CORES=1
VM_BRIDGE="vmbr0"
VM_STORAGE="local"
VM_DISK_EXTRA="256M" # extra space added to the CHR disk when none is entered

#### helpers

Expand Down Expand Up @@ -144,16 +145,21 @@ IMG_DIR="/var/lib/vz/images/$vmID"
echo "-- Creating VM image dir!"
mkdir -p "$IMG_DIR" || die "Could not create $IMG_DIR"

read -r -p "Please input extra image size in GB (0 for none): " imgsize
[[ "$imgsize" =~ ^[0-9]+$ ]] || die "Image size must be a non-negative number: '$imgsize'"
read -r -p "Extra disk size to add (e.g. 256M, 1G; Enter = $VM_DISK_EXTRA, 0 = none): " imgsize
imgsize="${imgsize:-$VM_DISK_EXTRA}"
imgsize="${imgsize^^}" # normalise suffix case (256m -> 256M)
[[ "$imgsize" =~ ^[0-9]+$ ]] && imgsize="${imgsize}G" # a bare number means GB
[[ "$imgsize" =~ ^[0-9]+[KMGT]$ ]] || die "Invalid disk size: '$imgsize' (use e.g. 256M, 1G or 0)"

disk="$IMG_DIR/vm-$vmID-disk-0.qcow2"
echo "-- Converting image to qcow2 format"
qemu-img convert -f raw -O qcow2 "$img" "$disk" || die "qemu-img convert failed"

if [ "$imgsize" -ne 0 ]; then
echo "-- Resizing image by +${imgsize}G"
qemu-img resize "$disk" "+${imgsize}G" || die "qemu-img resize failed"
if [ "${imgsize%[KMGT]}" -ne 0 ]; then
echo "-- Resizing image by +$imgsize"
qemu-img resize "$disk" "+$imgsize" || die "qemu-img resize failed"
else
echo "-- No disk resize requested."
fi

#### 6. create the VM
Expand Down
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