Linux can read, but not write, OS/2 HPFS partitions. Mount options are the same as for msdos partitions. uid=nnn All files in the partition will be owned by user id nnn. gid=nnn All files in the partition will be in group nnn. umask=nnn The permission mask (see umask(1)) for the partition. conv=binary Data is returned exactly as is, with CRLFs. [default] conv=text (Carriage return, line feed) is replaced with newline. conv=auto Chooses, file by file, conv=binary or conv=text (by guessing) There are mount options unique to HPFS. case=lower Convert file names to lower case. [default] case=asis Return file names as is, in mixed case. nocheck Proceed even if "Improperly stopped flag is set" Case is not significant in filename matching, like real HPFS. Command line example mkdir -p /os2/c mount -t hpfs -o uid=100,gid=100 /dev/sda6 /os2/c /etc/fstab example /dev/sdb5 /d/f hpfs ro,uid=402,gid=402,umask=002