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Earlier today I unplugged my Raspberry Pi 3 after running it for a few hours, then plugged it back in.

After this, the Pi would turn on (steady red light) but would not boot (no flashing green light).

I tried another micro SD in the Pi, and it booted just fine.

So I plugged the micro SD into a Ubuntu 16.04 machine...

~$ ls /dev/sd*

/dev/sda

When unplugged, /dev/sda disappears, so it must be that. Tried to mount it...

~$ sudo mount /dev/sda /media/usb

After a long delay, mount: no medium found on /dev/sda.

I then realized the micro SD is probably toast. So I went about installing and using gddrescue:

~$ sudo apt update

~$ sudo apt install gddrescue

~$ sudo ddrescue -f -n /dev/sda rescue.dd logfile.dd

ddrescue: Can't open input file: No medium found

Output of sudo tail -f /var/log/syslog when disconnecting then connecting the micro SD:

Dec 11 12:27:08 x kernel: [14878.890383] usb 1-14: USB disconnect, device number 23

Dec 11 12:27:11 x colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1

Dec 11 12:27:28 x kernel: [14899.667251] usb 1-14: new high-speed USB device number 24 using xhci_hcd

Dec 11 12:27:29 x mtp-probe: checking bus 1, device 24: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-14"

Dec 11 12:27:29 x mtp-probe: bus: 1, device: 24 was not an MTP device

Dec 11 12:27:29 x kernel: [14899.815464] usb 1-14: New USB device found, idVendor=1908, idProduct=0226

Dec 11 12:27:29 x kernel: [14899.815465] usb 1-14: New USB device strings: Mfr=0, Product=0, SerialNumber=0

Dec 11 12:27:29 x kernel: [14899.816000] usb-storage 1-14:1.0: USB Mass Storage device detected

Dec 11 12:27:29 x kernel: [14899.816211] scsi host6: usb-storage 1-14:1.0

Dec 11 12:27:30 x kernel: [14900.843636] scsi 6:0:0:0: Direct-Access     Generic  Mass-Storage     1.11 PQ: 0 ANSI: 2

Dec 11 12:27:30 x kernel: [14900.843924] sd 6:0:0:0: Attached scsi generic sg0 type 0

Dec 11 12:27:32 x colord-sane: io/hpmud/pp.c 627: unable to read device-id ret=-1

Dec 11 12:27:41 x kernel: [14912.437282] sd 6:0:0:0: [sda] Attached SCSI removable disk

Just looking for any insight on what can be done next here. I need to at least get some scripts/config files off the micro SD.

I should add that the SD card got very hot during this process, which tells me it's indeed fried.