SD Card is showing strange behavior

[Iripi97]

Hi I am trying to boot Linux with the Freedom Unleashed 500 work flow. I ran into some issues with formatting my SD card. I follow the steps found in the instruction PDF but when I try to write the table to the disk and exit it says:
"Warning! An error was reported when writing the partition table! This error MIGHT be harmless, or the disk might be damaged! Checking it is advisable."
I cannot see it when typing sudo fdisk -l either, however I can see in /dev the SD card (it is /dev/sdb).
How would I check to see if the SD card is damaged, or how can I fix it such that it can still boot Linux?

[erikdanie]

I am not familiar with fdisk, but you may want to try asking on the sifive forums to see if anyone else has more experience or has run into this before

[Iripi97]

If anyone else has trouble with their SD card, they should try the steps listed here:
https://forums.sifive.com/t/sd-card-is-showing-strange-behavior/3333
On my end it ended up being that the SD card reader was broken, hope this helps!