Bad Superblock, Inconsistent Drive Assessment

[SoyDodger]

Hello everyone,

I'm having trouble mounting an older SSD (dev/sdd1/) as I receive the error "bad superblock". I accessed the drive fine just a day ago. When I first examined DISK, it initially showed SELF-TEST FAIL. So I read this thread:

viewtopic.php?f=50&t=317488&p=1798286&h ... k#p1798286

Where one user recommended running the SMART diagnostic, which I tried but received the error:
sk_disk_smart_self-test: Operation not supported (udisks-error-quark, 0)

I also ran "Check File System" and got the error:
udisks-error-quark, 0

Now the self-test fail message is gone and it shows Disk is OK, but I am still unable to mount it properly.

Has anyone experienced this before? Are there any suggestions on how I can mount it successfully?



INXI follows:

System:
Host: BaseCamp Kernel: 5.4.0-60-generic x86_64 bits: 64 compiler: gcc
v: 7.5.0 Desktop: Cinnamon 4.4.8 wm: muffin 4.4.4 dm: LightDM 1.26.0
Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic
Machine:
Type: Desktop Mobo: ASUSTeK model: P8H77-M v: Rev X.0x serial: <filter>
UEFI: American Megatrends v: 1306 date: 03/07/2014
Battery:
Device-1: hidpp_battery_0 model: Logitech Wireless Keyboard
serial: <filter> charge: 55% rechargeable: yes status: Discharging
CPU:
Topology: Quad Core model: Intel Core i5-3470 bits: 64 type: MCP
arch: Ivy Bridge rev: 9 L2 cache: 6144 KiB
flags: lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 25599
Speed: 1601 MHz min/max: 1600/3600 MHz Core speeds (MHz): 1: 1601 2: 1600
3: 1600 4: 1601
Graphics:
Device-1: NVIDIA GM107 [GeForce GTX 750 Ti] vendor: Gigabyte
driver: nouveau v: kernel bus ID: 01:00.0 chip ID: 10de:1380
Display: x11 server: X.Org 1.20.8 driver: modesetting unloaded: fbdev,vesa
resolution: 1920x1080~60Hz
OpenGL: renderer: NV117 v: 4.3 Mesa 20.0.8 direct render: Yes
Audio:
Device-1: Intel 7 Series/C216 Family High Definition Audio
vendor: ASUSTeK P8Z77-V LX driver: snd_hda_intel v: kernel bus ID: 00:1b.0
chip ID: 8086:1e20
Device-2: NVIDIA vendor: Gigabyte driver: snd_hda_intel v: kernel
bus ID: 01:00.1 chip ID: 10de:0fbc
Sound Server: ALSA v: k5.4.0-60-generic
Network:
Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
vendor: ASUSTeK P8 series driver: r8169 v: kernel port: d000
bus ID: 03:00.0 chip ID: 10ec:8168
IF: enp3s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Device-2: Microsoft Xbox 360 Wireless Adapter type: USB driver: xpad
bus ID: 2-1.7:4 chip ID: 045e:0719 serial: <filter>
Drives:
Local Storage: total: 2.62 TiB used: 1.85 TiB (70.6%)
ID-1: /dev/sda vendor: Plextor model: PX-128M5Pro size: 119.24 GiB
speed: 6.0 Gb/s serial: <filter> rev: 1.08 scheme: GPT
ID-2: /dev/sdb vendor: Seagate model: ST500DM002-1BD142 size: 465.76 GiB
speed: 6.0 Gb/s rotation: 7200 rpm serial: <filter> rev: KC45 scheme: MBR
ID-3: /dev/sdc vendor: Seagate model: ST2000DM006-2DM164 size: 1.82 TiB
speed: 3.0 Gb/s rotation: 7200 rpm serial: <filter> rev: CC26 scheme: MBR
ID-4: /dev/sdd vendor: Transcend model: TS256GSSD370S size: 238.47 GiB
speed: 3.0 Gb/s serial: <filter> rev: 4D scheme: MBR
Partition:
ID-1: / size: 115.43 GiB used: 89.87 GiB (77.9%) fs: ext4 dev: /dev/dm-0
ID-2: swap-1 size: 980.0 MiB used: 0 KiB (0.0%) fs: swap dev: /dev/dm-1
Sensors:
System Temperatures: cpu: 37.0 C mobo: N/A gpu: nouveau temp: 32 C
Fan Speeds (RPM): N/A gpu: nouveau fan: 1170
Repos:
No active apt repos in: /etc/apt/sources.list
Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list
1: deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
Active apt repos in: /etc/apt/sources.list.d/megasync.list
1: deb https://mega.nz/linux/MEGAsync/xUbuntu_18.04/ ./
Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
1: deb http://packages.linuxmint.com tricia main upstream import backport #id:linuxmint_main
2: deb http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse
3: deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse
4: deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
5: deb http://security.ubuntu.com/ubuntu/ bionic-security main restricted universe multiverse
6: deb http://archive.canonical.com/ubuntu/ bionic partner
Active apt repos in: /etc/apt/sources.list.d/skype-stable.list
1: deb [arch=amd64] https://repo.skype.com/deb stable main
Active apt repos in: /etc/apt/sources.list.d/spideroakone.list
1: deb https://apt.spideroak.com/ubuntu/ release restricted
Info:
Processes: 216 Uptime: 21m Memory: 7.72 GiB used: 1.79 GiB (23.2%)
Init: systemd v: 237 runlevel: 5 Compilers: gcc: 7.5.0 alt: 7 Shell: bash
v: 4.4.20 running in: gnome-terminal inxi: 3.0.32