mount disk permission problem

today, I mount a disk by user 1, and the other user cann't rw this disk,

so, i modify permission and ownship (chmod and chown), but it's did work, the value was change, but i still didn't read/write disk.

finally, i restart computer, then the new configure have update.


1 auto mount
1.1 find out uuid of disk
     #sudo blkid
1.2 mount by uuid

other condition is modify permission and ownship can pass, but the value didn't change, this may the format of File system not support group, in the other word, it is not a file system of Linux system, it may be FAT or NTFS, in this case, you should umount disk and mount system in new parameter.