Cannot read files from SD card which works fine under windows
BentiGorlich@gehirneimer.de to 
I have a SanDisk 256GB extreme pro SD card for my camera. It works perfectly fine with the camera and with windows, but when I instert it into the card reader on linux (fedora 38) I can't copy any files from it:
cp: Fehler beim Lesen von '.../DCIM/112_FUJI/DSCF2001.RAF': Eingabe-/Ausgabefehler
Loosely translated:
cp: error while reading from '.../DCIM//112_FUJI/DSCF2001.RAF': input/output error
the card is automatically mounted and shows up in the file explorer.
The fdisk command return this:
Festplatte /dev/sdg1: 238,27 GiB, 255835766784 Bytes, 499679232 Sektoren
Einheiten: Sektoren von 1 * 512 = 512 Bytes
Sektorgröße (logisch/physikalisch): 512 Bytes / 512 Bytes
E/A-Größe (minimal/optimal): 512 Bytes / 512 Bytes
Festplattenbezeichnungstyp: dos
Festplattenbezeichner: 0xf4f4f4f4
Gerät Boot Anfang Ende Sektoren Größe Kn Typ
/dev/sdg1p1 4109694196 8219388391 4109694196 1,9T f4 SpeedStor
/dev/sdg1p2 4109694196 8219388391 4109694196 1,9T f4 SpeedStor
/dev/sdg1p3 4109694196 8219388391 4109694196 1,9T f4 SpeedStor
/dev/sdg1p4 4109694196 8219388391 4109694196 1,9T f4 SpeedStor
I tried following this: https://www.reddit.com/r/raspberry\_pi/comments/habv0q/fixing\_linux\_sd\_card\_reader\_issues\_inputoutput/
but it didn't change anything
Does anyone have any idea?
EDIT:
I used the wrong fdisk command. I used /dev/sdg1 as opposed to /dev/sdg which is the actual drive. Here is the output of fdisk -l /dev/sdg:
Festplatte /dev/sdg: 238,3 GiB, 255869321216 Bytes, 499744768 Sektoren
Festplattenmodell: STORAGE DEVICE
Einheiten: Sektoren von 1 * 512 = 512 Bytes
Sektorgröße (logisch/physikalisch): 512 Bytes / 512 Bytes
E/A-Größe (minimal/optimal): 512 Bytes / 512 Bytes
Festplattenbezeichnungstyp: dos
Festplattenbezeichner: 0x00000000
Gerät Boot Anfang Ende Sektoren Größe Kn Typ
/dev/sdg1 * 65536 499744767 499679232 238,3G 7 HPFS/NTFS/exFAT
Is it an issue with disk format maybe? Eg. Fat32 vs NTFS etc
If it were I'd have the same problems on my windows machine, wouldn't I?
If the card was in NTFS, then Linux may not deal with it correctly, whereas windows is fine with both NTFS and fat.
How can I check how it is formatted? I highly doubt that a camera formats an sd card in NTFS....
@BentiGorlich @dueuwuje try fdisk -l
It has 3 different formattings?
That is just the partition type in the partition table (based on a number stored there).
Where did you find this information btw? It seems to be more sensible than the partition table in your main post.
The information in my main post is the output of
fdisk /dev/sdg1 -lAnd the information in this post is from
fdisk -lSo presumably this is the output of
fdisk -l /dev/sdgwhich makes more sense thanfdisk -l /dev/sdg1since the latter is the name of the first partition.