My Raspberry Pi sd card recently became full causing a system crash. Since then it has been read-only. I gathered that the sd card was now at the end of its life, so did a 'dd' image of it and put the image on a new card. When the Pi boots (Raspbian Buster), it seems even with the new card the root filesystem is mounted as read-only. There is nothing wrong with the sd card, I can mount it in another system and it has full read-write capabilities, so the problem seems to lie with the image. I have ran an fsck and didn't find any errors, and manually remounting it will restore write privileges, but I need it working at boot. Any suggestions on how to fix this?