SSD 坏了？双启动 Win 8 和 Ubuntu 18.04

Question

我已经（或者应该说我曾经）在我的 Toshiba Satellite U920T 上安装了 Windows 8 和 Ubuntu 18.04。

我遇到了一些启动问题。启动笔记本电脑时，我收到启动错误：“将系统盘插入驱动器。准备好后按任意键...”。

我决定运行 Live Ubuntu 会话（版本 18.04）。我坚信安装两个操作系统的 SSD 已经坏了。在购买新 SSD 之前，我想确保 SSD 确实坏了，并且没有办法让它再次工作。

boot-repair输出这里。如您所见，只有临时分区被识别，并且 USB 驱动器是我用来运行会话的。

除 USB 记忆棒外，没有可见的分区（最后一个条目低于 7.2GB）：

ubuntu@ubuntu:~$ sudo fdisk -l
Disk /dev/loop0: 1.7 GiB, 1831378944 bytes, 3576912 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop1: 86.6 MiB, 90759168 bytes, 177264 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop2: 140 MiB, 146841600 bytes, 286800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop3: 1.6 MiB, 1691648 bytes, 3304 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop4: 12.2 MiB, 12804096 bytes, 25008 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop5: 21 MiB, 22003712 bytes, 42976 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/loop6: 3.3 MiB, 3411968 bytes, 6664 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes


Disk /dev/sda: 7.2 GiB, 7759462400 bytes, 15155200 sectors
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: gpt
Disk identifier: CD5DF6A2-08E7-41EF-8CC6-2F09B84DE3CB

Device     Start      End  Sectors  Size Type
/dev/sda1   2048 15155166 15153119  7.2G Microsoft basic data