On Wed, 25 Jul 2018 at 11:03, Walter Harms <wharms@xxxxxx> wrote: > > > > > Harry Mallon <hjmallon@xxxxxxxxx> hat am 25. Juli 2018 um 11:56 geschrieben: > > > > > > Hello all, > > > > I have reported a bug in Bugzilla > > https://bugzilla.kernel.org/show_bug.cgi?id=200649 > > > > "man-pages: mount does not document EROFS" > > > > === > > The man pages for mount(...) GLibC function do not document when a EROFS might > > be received. > > > > When mounting without READONLY flag: > > I have a UDF formatted disk which returns EACCESS as it is read only. > > I have a VFat formatted disk (with hardware write protect turned on) which > > returns EROFS. > > > > I think a line should be added to the man pages to cover EROFS, but I am not > > sure on the detail of when it would happen. > > > I am not sure that i understand the steps propperly. > You are doing "mount /dev/xx /mnt" and this results in an error > or do you "mount /dev/xx /mnt ; cd /mnt" tp get am error ? Sorry for being unclear. I have code similar to what follows and I am inpecting errno. --- if (::mount("/dev/xx", "/mnt/name", FSTYPE, 0, NULL) == 0) return true; int err = errno; std::cerr << "mount returned: " << err << "\n"; if (err == EACCESS) { // Do some stuff as it is read only } return false; --- I have a couple of different devices that are both read only, but only one was caught in the read only section. A UDF read only device returns EACCESS, which is well documented in the man pages for read only devices. A VFAT device (which has a hardware read only switch) returns EROFS, which is undocumented in the man pages. It caught me out, so I thought it should be documented. Best (and apologes for resending, failed to reply all previously), H > > re, > wh > > > === > > > > Thanks for your attention, > > Harry Mallon > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-man" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
