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I'm trying to get my FAT32 partitions writeable under Linux. I've been in my fstab several times in the past but never had this problem. However, even as root, when I change the permissions of the filesystem, something in Linux immediately changes it back (and a change note is immediately reflected). I have been playing in my fstab trying to fix this, and have come across several wierd behaviors, including my access point (/mnt/data to be specific) completely vanishing. What is doing this? Right now, I can read the filesystem on /mnt/data, but I cannot write to it. I'll post my /etc/fstab later if you guys want it.
Distribution: Lots of distros in the past, now Linux Mint
Yeah, the main idea is that fat32 retains whatever permissions it's mounted with. If you mount it with read only permission, then try to chmod a file, you'll get nowhere, even as root. If you mount it read-write, it's dangerous, but it'll work.
If you use your fat32 partitions a lot, you might want to create a user with rw permissions to that mount point, then add that user to whoever needs access. Another user can be set up with just read only permissions, but this is done from the linux side, not the mount/windows side, and can be a real pain to set up correctly.
Something I've noticed: Lately, RedHat 9 has started saying that FAT32 support is still in ALPHA, though I have never seen that until here lately. Could that have something to do with it? If so, where can I get updates for my FAT32 "engine"?
if i remember correctly, even if you set the rw flag in fstab, that still won't work. i didn't for me anyway. what will work is setting the umask option in fstab. if you don't care about who has write permissions to your fat32 partition you can just use:
that will set the permissions of that partition when mounted to 777.