feat: Support download of disk images (#118)
This commit is contained in:
Kroese
GitHub
parent
bdd0f1a1a7
commit
c6ed03f331
6 changed files with 328 additions and 66 deletions
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@ -12,6 +12,8 @@ RUN set -eu && \
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apt-get --no-install-recommends -y install \
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tini \
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wget \
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7zip \
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fdisk \
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nginx \
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procps \
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seabios \
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@ -19,6 +21,7 @@ RUN set -eu && \
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iproute2 \
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apt-utils \
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dnsmasq \
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xz-utils \
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net-tools \
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qemu-utils \
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genisoimage \
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24
readme.md
24
readme.md
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@ -18,13 +18,15 @@ Docker container for running ARM-based virtual machines using QEMU, for devices
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- Create VM's which behave just like normal containers
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- Manage them using all your existing tools (like Portainer) and configure them in a language (YAML) you are already familiar with
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- Manage them using all your existing tools (like Portainer)
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- Reduces the learning curve and eliminates the need for a dedicated Proxmox or ESXi server
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- Configure them in a language (YAML) you are already familiar with
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- Web-based viewer to control the machine directly from your browser
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- Web-based viewer to control the machine directly from your browser
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- High-performance QEMU options (like KVM acceleration, kernel-mode networking, IO threading, etc.) to achieve near-native speed
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- Supports `.iso`, `.img`, `.qcow2`, `.vhd`, `.vhdx`, `.vdi`, `.vmdk` and `.raw` disk formats
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- High-performance options (like KVM acceleration, kernel-mode networking, IO threading, etc.) to achieve near-native speed
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*Note: for KVM acceleration you need a Linux-based operating system, as it's not available on MacOS unfortunately.*
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@ -66,7 +68,7 @@ kubectl apply -f kubernetes.yml
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Very simple! These are the steps:
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- Set the `BOOT` environment variable to the URL of an ISO image you want to install.
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- Set the `BOOT` environment variable to the URL of any [disk image](https://github.com/qemus/qemu-docker#what-image-formats-are-supported) you want to install.
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- Start the container and connect to [port 8006](http://localhost:8006) using your web browser.
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@ -96,16 +98,16 @@ kubectl apply -f kubernetes.yml
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This can also be used to resize the existing disk to a larger capacity without any data loss.
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* ### How do I boot a local ISO?
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* ### How do I boot a local image?
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You can use a local file directly, and skip the download altogether, by binding it in your compose file in this way:
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You can use a local image file directly, and skip the download altogether, by binding it in your compose file:
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```yaml
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volumes:
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- /home/user/example.iso:/boot.iso
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```
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Replace the example path `/home/user/example.iso` with the filename of the desired ISO file, the value of `BOOT` will be ignored in this case.
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This way you can supply a `boot.iso`, `boot.img` or `boot.qcow2` file. The URL of the `BOOT` variable will be ignored in this case.
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* ### How do I boot Windows?
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@ -257,6 +259,12 @@ kubectl apply -f kubernetes.yml
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ARGUMENTS: "-device usb-tablet"
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```
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* ### What image formats are supported?
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You can set the `BOOT` URL to any `.iso`, `.img`, `.raw`, `.qcow2`, `.vhd`, `.vhdx`, `.vdi` or `.vmdk` file.
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It will even automaticly extract compressed images, like `.img.gz`, `.qcow2.xz`, `.iso.zip` and many more!
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## Stars 🌟
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[](https://starchart.cc/qemus/qemu-arm)
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@ -4,12 +4,13 @@ set -Eeuo pipefail
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: "${SERIAL:="mon:stdio"}"
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: "${USB:="qemu-xhci,id=xhci"}"
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: "${MONITOR:="telnet:localhost:7100,server,nowait,nodelay"}"
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: "${SMP:="$CPU_CORES,sockets=1,dies=1,cores=$CPU_CORES,threads=1"}"
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DEF_OPTS="-nodefaults"
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SERIAL_OPTS="-serial $SERIAL"
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CPU_OPTS="-cpu $CPU_FLAGS -smp $SMP"
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USB_OPTS="-device $USB -device usb-kbd -device usb-tablet"
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RAM_OPTS=$(echo "-m ${RAM_SIZE^^}" | sed 's/MB/M/g;s/GB/G/g;s/TB/T/g')
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CPU_OPTS="-cpu $CPU_FLAGS -smp $CPU_CORES,sockets=1,dies=1,cores=$CPU_CORES,threads=1"
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MON_OPTS="-monitor $MONITOR -name $PROCESS,process=$PROCESS,debug-threads=on"
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MAC_OPTS="-machine type=${MACHINE},secure=${SECURE},dump-guest-core=off${KVM_OPTS}"
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DEV_OPTS="-object rng-random,id=objrng0,filename=/dev/urandom"
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35
src/disk.sh
35
src/disk.sh
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@ -274,10 +274,10 @@ convertDisk() {
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isCow "$FS" && DISK_PARAM+=",nocow=on"
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if [[ "$DST_FMT" != "raw" ]]; then
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if [[ "$ALLOCATE" == [Nn]* ]]; then
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CONV_FLAGS+=" -c"
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fi
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[ -n "$DISK_FLAGS" ] && DISK_PARAM+=",$DISK_FLAGS"
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if [[ "$ALLOCATE" == [Nn]* ]]; then
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CONV_FLAGS+=" -c"
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fi
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[ -n "$DISK_FLAGS" ] && DISK_PARAM+=",$DISK_FLAGS"
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fi
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# shellcheck disable=SC2086
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@ -287,13 +287,13 @@ convertDisk() {
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fi
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if [[ "$DST_FMT" == "raw" ]]; then
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if [[ "$ALLOCATE" != [Nn]* ]]; then
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# Work around qemu-img bug
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CUR_SIZE=$(stat -c%s "$TMP_FILE")
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if ! fallocate -l "$CUR_SIZE" "$TMP_FILE"; then
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error "Failed to allocate $CUR_SIZE bytes for $DISK_DESC image $TMP_FILE"
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fi
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if [[ "$ALLOCATE" != [Nn]* ]]; then
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# Work around qemu-img bug
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CUR_SIZE=$(stat -c%s "$TMP_FILE")
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if ! fallocate -l "$CUR_SIZE" "$TMP_FILE"; then
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error "Failed to allocate $CUR_SIZE bytes for $DISK_DESC image $TMP_FILE"
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fi
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fi
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fi
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rm -f "$SOURCE_FILE"
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@ -524,6 +524,7 @@ addDevice () {
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html "Initializing disks..."
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[ -z "${DISK_OPTS:-}" ] && DISK_OPTS=""
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[ -z "${DISK_NAME:-}" ] && DISK_NAME="data"
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[ -z "${DISK_TYPE:-}" ] && DISK_TYPE="scsi"
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case "${DISK_TYPE,,}" in
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@ -564,10 +565,16 @@ if [ -f "$DRIVERS" ] && [ -s "$DRIVERS" ]; then
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DISK_OPTS+=$(addMedia "$DRIVERS" "$FALLBACK" "1" "" "0x6")
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fi
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DISK1_FILE="$STORAGE/data"
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DISK2_FILE="/storage2/data2"
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DISK3_FILE="/storage3/data3"
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DISK4_FILE="/storage4/data4"
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DISK1_FILE="/boot"
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if [ ! -f "$DISK1_FILE.img" ] || [ ! -s "$DISK1_FILE.img" ]; then
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if [ ! -f "$DISK1_FILE.qcow2" ] || [ ! -s "$DISK1_FILE.qcow2" ]; then
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DISK1_FILE="$STORAGE/${DISK_NAME}"
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fi
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fi
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DISK2_FILE="/storage2/${DISK_NAME}2"
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DISK3_FILE="/storage3/${DISK_NAME}3"
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DISK4_FILE="/storage4/${DISK_NAME}4"
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if [ -z "$DISK_FMT" ]; then
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if [ -f "$DISK1_FILE.qcow2" ]; then
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327
src/install.sh
327
src/install.sh
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@ -1,76 +1,317 @@
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#!/usr/bin/env bash
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set -Eeuo pipefail
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detect () {
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detectType() {
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local dir=""
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local file="$1"
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[ ! -f "$file" ] && return 1
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[ ! -s "$file" ] && return 1
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dir=$(isoinfo -f -i "$file")
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case "${file,,}" in
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*".iso" )
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if [ -z "${BOOT_MODE:-}" ]; then
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# Automaticly detect UEFI-compatible ISO's
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dir=$(isoinfo -f -i "$file")
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dir=$(echo "${dir^^}" | grep "^/EFI")
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[ -n "$dir" ] && BOOT_MODE="uefi"
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fi
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BOOT="$file"
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[ -n "${BOOT_MODE:-}" ] && return 0
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# Automaticly detect UEFI-compatible ISO's
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dir=$(isoinfo -f -i "$file")
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[ -z "$dir" ] && error "Failed to read ISO file, invalid format!" && BOOT="" && return 1
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dir=$(echo "${dir^^}" | grep "^/EFI")
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[ -n "$dir" ] && BOOT_MODE="uefi"
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;;
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*".img" )
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DISK_NAME=$(basename "$file")
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DISK_NAME="${DISK_NAME%.*}"
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[ -n "${BOOT_MODE:-}" ] && return 0
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# Automaticly detect UEFI-compatible images
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dir=$(sfdisk -l "$file")
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[ -z "$dir" ] && error "Failed to read IMG file, invalid format!" && DISK_NAME="" && return 1
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dir=$(echo "${dir^^}" | grep "EFI SYSTEM")
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[ -n "$dir" ] && BOOT_MODE="uefi"
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;;
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*".qcow2" )
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DISK_NAME=$(basename "$file")
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DISK_NAME="${DISK_NAME%.*}"
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[ -n "${BOOT_MODE:-}" ] && return 0
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# TODO: Detect boot mode from partition table in image
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BOOT_MODE="uefi"
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;;
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* )
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return 1 ;;
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esac
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BOOT="$file"
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return 0
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}
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file=$(find / -maxdepth 1 -type f -iname boot.iso | head -n 1)
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[ ! -s "$file" ] && file=$(find "$STORAGE" -maxdepth 1 -type f -iname boot.iso | head -n 1)
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detect "$file" && return 0
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downloadFile() {
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local url="$1"
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local base="$2"
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local msg rc total progress
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local dest="$STORAGE/$base.tmp"
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rm -f "$dest"
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# Check if running with interactive TTY or redirected to docker log
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if [ -t 1 ]; then
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progress="--progress=bar:noscroll"
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else
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progress="--progress=dot:giga"
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fi
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msg="Downloading image"
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info "Downloading $base..."
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html "$msg..."
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/run/progress.sh "$dest" "0" "$msg ([P])..." &
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{ wget "$url" -O "$dest" -q --timeout=30 --show-progress "$progress"; rc=$?; } || :
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fKill "progress.sh"
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if (( rc == 0 )) && [ -f "$dest" ]; then
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total=$(stat -c%s "$dest")
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if [ "$total" -lt 100000 ]; then
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error "Invalid image file: is only $total bytes?" && return 1
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fi
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html "Download finished successfully..."
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mv -f "$dest" "$STORAGE/$base"
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return 0
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fi
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msg="Failed to download $url"
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(( rc == 3 )) && error "$msg , cannot write file (disk full?)" && return 1
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(( rc == 4 )) && error "$msg , network failure!" && return 1
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(( rc == 8 )) && error "$msg , server issued an error response!" && return 1
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error "$msg , reason: $rc"
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return 1
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}
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convertImage() {
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local source_file=$1
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local source_fmt=$2
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local dst_file=$3
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local dst_fmt=$4
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local dir base fs fa cur_size src_size space disk_param
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[ -f "$dst_file" ] && error "Conversion failed, destination file $dst_file already exists?" && return 1
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[ ! -f "$source_file" ] && error "Conversion failed, source file $source_file does not exists?" && return 1
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if [[ "$source_fmt" == "raw" ]] && [[ "$dst_fmt" == "raw" ]]; then
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mv -f "$source_file" "$dst_file"
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return 0
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fi
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local tmp_file="$dst_file.tmp"
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dir=$(dirname "$tmp_file")
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rm -f "$tmp_file"
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if [ -n "$ALLOCATE" ] && [[ "$ALLOCATE" != [Nn]* ]]; then
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# Check free diskspace
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src_size=$(qemu-img info "$source_file" -f "$source_fmt" | grep '^virtual size: ' | sed 's/.*(\(.*\) bytes)/\1/')
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space=$(df --output=avail -B 1 "$dir" | tail -n 1)
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if (( src_size > space )); then
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local space_gb=$(( (space + 1073741823)/1073741824 ))
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error "Not enough free space to convert image in $dir, it has only $space_gb GB available..." && return 1
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fi
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fi
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base=$(basename "$source_file")
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info "Converting $base..."
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html "Converting image..."
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local conv_flags="-p"
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if [ -z "$ALLOCATE" ] || [[ "$ALLOCATE" == [Nn]* ]]; then
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disk_param="preallocation=off"
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else
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disk_param="preallocation=falloc"
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fi
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fs=$(stat -f -c %T "$dir")
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[[ "${fs,,}" == "btrfs" ]] && disk_param+=",nocow=on"
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if [[ "$dst_fmt" != "raw" ]]; then
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if [ -z "$ALLOCATE" ] || [[ "$ALLOCATE" == [Nn]* ]]; then
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conv_flags+=" -c"
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fi
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[ -n "${DISK_FLAGS:-}" ] && disk_param+=",$DISK_FLAGS"
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fi
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# shellcheck disable=SC2086
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if ! qemu-img convert -f "$source_fmt" $conv_flags -o "$disk_param" -O "$dst_fmt" -- "$source_file" "$tmp_file"; then
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rm -f "$tmp_file"
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error "Failed to convert image in $dir, is there enough space available?" && return 1
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fi
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if [[ "$dst_fmt" == "raw" ]]; then
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if [ -n "$ALLOCATE" ] && [[ "$ALLOCATE" != [Nn]* ]]; then
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# Work around qemu-img bug
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cur_size=$(stat -c%s "$tmp_file")
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if ! fallocate -l "$cur_size" "$tmp_file"; then
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error "Failed to allocate $cur_size bytes for image!"
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fi
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fi
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fi
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rm -f "$source_file"
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mv "$tmp_file" "$dst_file"
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if [[ "${fs,,}" == "btrfs" ]]; then
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fa=$(lsattr "$dst_file")
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if [[ "$fa" != *"C"* ]]; then
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error "Failed to disable COW for image on ${fs^^} filesystem!"
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fi
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fi
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html "Conversion completed..."
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return 0
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}
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findFile() {
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local ext="$1"
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local file
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file=$(find / -maxdepth 1 -type f -iname "boot.$ext" | head -n 1)
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[ ! -s "$file" ] && file=$(find "$STORAGE" -maxdepth 1 -type f -iname "boot.$ext" | head -n 1)
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detectType "$file" && return 0
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return 1
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}
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findFile "iso" && return 0
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findFile "img" && return 0
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findFile "qcow2" && return 0
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if [ -z "$BOOT" ] || [[ "$BOOT" == *"example.com/image.iso" ]]; then
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hasDisk && return 0
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error "No boot disk specified, set BOOT= to the URL of an ISO file." && exit 64
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error "No boot disk specified, set BOOT= to the URL of a disk image file." && exit 64
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fi
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base=$(basename "$BOOT")
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detect "$STORAGE/$base" && return 0
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base=$(basename "${BOOT%%\?*}")
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: "${base//+/ }"; printf -v base '%b' "${_//%/\\x}"
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base=$(echo "$base" | sed -e 's/[^A-Za-z0-9._-]/_/g')
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detect "$STORAGE/$base" && return 0
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TMP="$STORAGE/${base%.*}.tmp"
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rm -f "$TMP"
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case "${base,,}" in
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# Check if running with interactive TTY or redirected to docker log
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if [ -t 1 ]; then
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progress="--progress=bar:noscroll"
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else
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progress="--progress=dot:giga"
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*".iso" | *".img" | *".qcow2" )
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detectType "$STORAGE/$base" && return 0 ;;
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*".raw" | *".vdi" | *".vmdk" | *".vhd" | *".vhdx" )
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detectType "$STORAGE/${base%.*}.img" && return 0
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detectType "$STORAGE/${base%.*}.qcow2" && return 0 ;;
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*".gz" | *".gzip" | *".xz" | *".7z" | *".zip" | *".rar" | *".lzma" | *".bz" | *".bz2" )
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case "${base%.*}" in
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*".iso" | *".img" | *".qcow2" )
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detectType "$STORAGE/${base%.*}" && return 0 ;;
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*".raw" | *".vdi" | *".vmdk" | *".vhd" | *".vhdx" )
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find="${base%.*}"
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detectType "$STORAGE/${find%.*}.img" && return 0
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detectType "$STORAGE/${find%.*}.qcow2" && return 0 ;;
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esac ;;
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* )
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error "Unknown file format, extension \".${base/*./}\" is not recognized!" && exit 33 ;;
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esac
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if ! downloadFile "$BOOT" "$base"; then
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rm -f "$STORAGE/$base.tmp" && exit 60
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fi
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msg="Downloading $base"
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info "$msg..." && html "$msg..."
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case "${base,,}" in
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*".gz" | *".gzip" | *".xz" | *".7z" | *".zip" | *".rar" | *".lzma" | *".bz" | *".bz2" )
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info "Extracting $base..."
|
||||
html "Extracting image..." ;;
|
||||
esac
|
||||
|
||||
/run/progress.sh "$TMP" "" "$msg ([P])..." &
|
||||
{ wget "$BOOT" -O "$TMP" -q --timeout=30 --show-progress "$progress"; rc=$?; } || :
|
||||
case "${base,,}" in
|
||||
*".gz" | *".gzip" )
|
||||
|
||||
fKill "progress.sh"
|
||||
gzip -dc "$STORAGE/$base" > "$STORAGE/${base%.*}"
|
||||
rm -f "$STORAGE/$base"
|
||||
base="${base%.*}"
|
||||
|
||||
msg="Failed to download $BOOT"
|
||||
(( rc == 3 )) && error "$msg , cannot write file (disk full?)" && exit 60
|
||||
(( rc == 4 )) && error "$msg , network failure!" && exit 60
|
||||
(( rc == 8 )) && error "$msg , server issued an error response!" && exit 60
|
||||
(( rc != 0 )) && error "$msg , reason: $rc" && exit 60
|
||||
[ ! -s "$TMP" ] && error "$msg" && exit 61
|
||||
;;
|
||||
*".xz" )
|
||||
|
||||
html "Download finished successfully..."
|
||||
xz -dc "$STORAGE/$base" > "$STORAGE/${base%.*}"
|
||||
rm -f "$STORAGE/$base"
|
||||
base="${base%.*}"
|
||||
|
||||
size=$(stat -c%s "$TMP")
|
||||
;;
|
||||
*".7z" | *".zip" | *".rar" | *".lzma" | *".bz" | *".bz2" )
|
||||
|
||||
if ((size<100000)); then
|
||||
error "Invalid ISO file: Size is smaller than 100 KB" && exit 62
|
||||
fi
|
||||
tmp="$STORAGE/extract"
|
||||
rm -rf "$tmp"
|
||||
mkdir -p "$tmp"
|
||||
7z x "$STORAGE/$base" -o"$tmp" > /dev/null
|
||||
|
||||
mv -f "$TMP" "$STORAGE/$base"
|
||||
! detect "$STORAGE/$base" && exit 63
|
||||
rm -f "$STORAGE/$base"
|
||||
base="${base%.*}"
|
||||
|
||||
return 0
|
||||
if [ ! -s "$tmp/$base" ]; then
|
||||
rm -rf "$tmp"
|
||||
error "Cannot find file \"${base}\" in .${BOOT/*./} archive!" && exit 32
|
||||
fi
|
||||
|
||||
mv "$tmp/$base" "$STORAGE/$base"
|
||||
rm -rf "$tmp"
|
||||
|
||||
;;
|
||||
esac
|
||||
|
||||
case "${base,,}" in
|
||||
*".iso" | *".img" | *".qcow2" )
|
||||
detectType "$STORAGE/$base" && return 0
|
||||
error "Cannot read file \"${base}\"" && exit 63 ;;
|
||||
esac
|
||||
|
||||
target_ext="img"
|
||||
target_fmt="${DISK_FMT:-}"
|
||||
[ -z "$target_fmt" ] && target_fmt="raw"
|
||||
[[ "$target_fmt" != "raw" ]] && target_ext="qcow2"
|
||||
|
||||
case "${base,,}" in
|
||||
*".raw" ) source_fmt="raw" ;;
|
||||
*".vdi" ) source_fmt="vdi" ;;
|
||||
*".vhd" ) source_fmt="vhd" ;;
|
||||
*".vmdk" ) source_fmt="vmdk" ;;
|
||||
*".vhdx" ) source_fmt="vhdx" ;;
|
||||
* )
|
||||
error "Unknown file format, extension \".${base/*./}\" is not recognized!" && exit 33 ;;
|
||||
esac
|
||||
|
||||
dst="$STORAGE/${base%.*}.$target_ext"
|
||||
|
||||
! convertImage "$STORAGE/$base" "$source_fmt" "$dst" "$target_fmt" && exit 35
|
||||
|
||||
base=$(basename "$dst")
|
||||
detectType "$STORAGE/$base" && return 0
|
||||
error "Cannot read file \"${base}\"" && exit 36
|
||||
|
|
|
|||
|
|
@ -196,6 +196,8 @@ hasDisk() {
|
|||
|
||||
[ -b "/disk1" ] && return 0
|
||||
[ -b "/dev/disk1" ] && return 0
|
||||
[ -s "/boot.img" ] && return 0
|
||||
[ -s "/boot.qcow2" ] && return 0
|
||||
[ -b "${DEVICE:-}" ] && return 0
|
||||
[ -s "$STORAGE/data.img" ] && return 0
|
||||
[ -s "$STORAGE/data.qcow2" ] && return 0
|
||||
|
|
|
|||
Loading…
Reference in a new issue