cat /etc/fstab | grep umask
UUID=BCF469E4F469A0FE /mnt/disk_c ntfs-3g ro,locale=ru_RU.UTF-8,umask=0 0 0
# #UUID=0000-0000 /mnt/sda1 vfat codepage=866,iocharset=utf8,umask=0 0 0
# #UUID=D657-101F /mnt/sda5 vfat codepage=866,iocharset=utf8,umask=0 0 0
/dev/sdb1 /media/flash auto user,iocharset=utf8,quiet,codepage=866,exec,noauto,umask=0 0