具有两个分区（其中一个分区包含 Debian 映像）的 USB 无法启动

Question 1

如果您有 Linux 可用，您可以打开一个终端并：

删除 USB 上的任何分区（请注意，这#意味着root将“X”更改sdX为适当的字母）

# dd if=/dev/zero of=/dev/sdX bs=512 count=1

创建新的：

# fdisk /dev/sdX
> n
> p
> 1
(+1GB)
> a
> 1
(toggles boot flag)
> t
> c
(filesystem type)
> n
> p
> 2
(defaults)
> t
(specify 2nd partition)
> c
(filesystem type)
> p
(prints current configuration)
> w
(write the new table and quit)

创建文件系统（这取决于您的需要：可能是mkfs.ext4，mkfs.ntfs等等）：

# mkfs.vfat /dev/sdX1
# mkfs.vfat /dev/sdX2

另外，分区表gpt或mbr（安装 Windows 的 USB 和驱动器）是吗？

Answer

如果您有 Linux 可用，您可以打开一个终端并：

删除 USB 上的任何分区（请注意，这#意味着root将“X”更改sdX为适当的字母）

# dd if=/dev/zero of=/dev/sdX bs=512 count=1

创建新的：

# fdisk /dev/sdX
> n
> p
> 1
(+1GB)
> a
> 1
(toggles boot flag)
> t
> c
(filesystem type)
> n
> p
> 2
(defaults)
> t
(specify 2nd partition)
> c
(filesystem type)
> p
(prints current configuration)
> w
(write the new table and quit)

创建文件系统（这取决于您的需要：可能是mkfs.ext4，mkfs.ntfs等等）：

# mkfs.vfat /dev/sdX1
# mkfs.vfat /dev/sdX2

另外，分区表gpt或mbr（安装 Windows 的 USB 和驱动器）是吗？

Question 2

看来您可以使用已经包含数据空间的 Debian 混合图像。

使用 RUFUS 将 Debian Hybrid ISO 刻录到 USB
此后，您应该会看到 USB 上有一个用于复制文件的辅助分区

这是 Linux 的原始详细说明，但它们为您提供了有关一般过程的见解。

摘自 Debian 网站 -https://www.debian.org/releases/jessie/amd64/ch04s03.html.en

 Debian CD and DVD images can now be written directly to a USB stick, which is a very easy way to make a bootable USB stick. Simply choose a CD or DVD image (such as the netinst, CD-1, DVD-1, or netboot) that will fit on your USB stick. See Section 4.1, “Official Debian GNU/Linux CD/DVD-ROM Sets” to get a CD or DVD image.

Alternatively, for very small USB sticks, only a few megabytes in size, you can download the mini.iso image from the netboot directory (at the location mentioned in Section 4.2.1, “Where to Find Installation Images”).

The CD or DVD image you choose should be written directly to the USB stick, overwriting its current contents. For example, when using an existing GNU/Linux system, the CD or DVD image file can be written to a USB stick as follows, after having made sure that the stick is unmounted:

    # cp debian.iso /dev/sdX
    # sync

The win32diskimager utility can be used under other operating systems to copy the image.

### Important

**The image must be written to the whole-disk device and not a partition, e.g. /dev/sdb and not /dev/sdb1. Do not use tools like unetbootin which alter the image.**

Simply writing the CD or DVD image to USB like this should work fine for most users. The other options below are more complex, mainly for people with specialised needs.

**The hybrid image on the stick does not occupy all the storage space, so it may be worth considering using the free space to hold firmware files or packages or any other files of your choice. This could be useful if you have only one stick or just want to keep everything you need on one device.**

Create a second, FAT partition on the stick, mount the partition and copy or unpack the firmware onto it. For example:

    # mount /dev/sdX2 /mnt
    # cd /mnt
    # tar zxvf /path/to/firmware.tar.gz
    # cd /
    # umount /mnt

You might have written the mini.iso to the USB stick. In this case the second partition doesn't have to be created as, very nicely, it will already be present. Unplugging and replugging the USB stick should make the two partitions visible.

更新：

“混合” ISO 映像文件适合写入 DVD-R(W) 介质，以及适当大小的 USB 密钥。

你可以得到它：

对于 AMD -https://cdimage.debian.org/debian-cd/current-live/amd64/iso-hybrid/
对于英特尔 -https://cdimage.debian.org/debian-cd/current-live/i386/iso-hybrid/

关于您是否能够设置混合分区的大小，我还没有找到有关这方面的信息，因此请下载 ISO，然后按照以下步骤操作https://linuxhint.com/debian_10_bootable_usb_install/如果你需要更多帮助请告诉我

Answer