从一个USB设备(U盘)启动多个操作系统, 并且U盘还能继续存储其他普通文件
下载并解压ventoy
wget https://github.com/ventoy/Ventoy/releases/download/v1.0.97/ventoy-1.0.97-linux.tar.gz
tar -xvzf ventoy-1.0.97-linux.tar.gz
cd ventoy-1.0.97/
Ventoy2Disk.sh用来安装ventor到U盘
./Ventoy2Disk.sh -h
**********************************************
Ventoy: 1.0.97 x86_64
longpanda admin@ventoy.net
https://www.ventoy.net
**********************************************
Usage: Ventoy2Disk.sh CMD [ OPTION ] /dev/sdX
CMD:
-i install Ventoy to sdX (fails if disk already installed with Ventoy)
-I force install Ventoy to sdX (no matter if installed or not)
-u update Ventoy in sdX
-l list Ventoy information in sdX
OPTION: (optional)
-r SIZE_MB preserve some space at the bottom of the disk (only for install)
-s/-S enable/disable secure boot support (default is enabled)
-g use GPT partition style, default is MBR (only for install)
-L Label of the 1st exfat partition (default is Ventoy)
-n try non-destructive installation (only for install)
安装ventoy
# ./Ventoy2Disk.sh -I /dev/sdb
**********************************************
Ventoy: 1.0.97 x86_64
longpanda admin@ventoy.net
https://www.ventoy.net
**********************************************
Disk : /dev/sdb
Model: Kingston DataTraveler 3.0 (scsi)
Size : 115 GB
Style: MBR
Attention:
You will install Ventoy to /dev/sdb.
All the data on the disk /dev/sdb will be lost!!!
Continue? (y/n) y
All the data on the disk /dev/sdb will be lost!!!
Double-check. Continue? (y/n) y
Create partitions on /dev/sdb by parted in MBR style ...
Done
Wait for partitions ...
partition exist OK
create efi fat fs /dev/sdb2 ...
mkfs.fat 4.2 (2021-01-31)
success
Wait for partitions ...
/dev/sdb1 exist OK
/dev/sdb2 exist OK
partition exist OK
Format partition 1 /dev/sdb1 ...
mkexfatfs 1.3.0
Creating... done.
Flushing... done.
File system created successfully.
mkexfatfs success
writing data to disk ...
sync data ...
esp partition processing ...
Install Ventoy to /dev/sdb successfully finished.
查看最终的U盘分区, sdb1分区是存放iso镜像的
# fdisk -l /dev/sdb
Disk /dev/sdb: 115.5 GiB, 124017180672 bytes, 242221056 sectors
Disk model: DataTraveler 3.0
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x7eda2ae4
Device Boot Start End Sectors Size Id Type
/dev/sdb1 * 2048 242155519 242153472 115.5G 7 HPFS/NTFS/exFAT
/dev/sdb2 242155520 242221055 65536 32M ef EFI (FAT-12/16/32)
拷贝iso镜像到U盘
为了充分利用U盘的空间, 我这里会在U盘里既存iso镜像(在image目录)也存储普通文件(在data目录)
但是如果data下文件特别多，搜索过程就会非常慢，这里就需要指定搜索路径来解决了
# 如果操作系统没有自动将sdb1 mount到目录需要先手动mount, 否则跳过就好
mkdir -p /mnt/Ventoy
mount /dev/sdb1 /mnt/Ventoy
# 创建文件夹
cd /mnt/Ventoy
mkdir -p image
mkdir -p data
mkdir -p ventoy
# 编辑 ventoy/ventoy.json 文件
cat <<EOF > ventoy/ventoy.json
{
"control": [
{ "VTOY_DEFAULT_SEARCH_ROOT": "/image" }
]
}
EOF
最后拷贝就直接 cp xx.iso /mnt/Ventoy/image/ 就行了