Hello All, I thought about this before I went to sleep last night and tried it out in the morning and successfully got exactly the results I expected. So now I more fully understand mount and umount as various users.
I did an adduser dale, and then an adduser dale floppy. Then I did the following. I logged in as michael. I typed mount floppy and got mount:can't find floppy in /etc/fstab or /etc/mtab that is exactly what I expected. so I typed mount /floppy and succeeded. I did a startx into xwindow and went into gqview and viewed my two existing jpg files which I had saved on my floppy. I went out of xwindow and did a umount floppy and got umount: floppy is not mounted (according to mtab). I then did a umount /floppy and umounted successfully. I then got out of xwindow. I then su'd as dale and did the above as user dale with exactly the same results, except that the dale account does not have any jpg files in his home directory, so the only jpg files I could view were on the floppy (the same floppy) So as one of the writers to this mailing list said, I indeed can mount a floppy from any directory. But the umount command must supply a complete path. That is why mount floppy failed and mount /floppy succeeded. That is why umount floppy failed and umount /floppy succeeded. Indeed I could type mount /flo tab completion and the mount succeeded and umount /flo and tab completion and umount succeeded. So now that I understand adding users, adding users to groups, and mount and umount commands, and how to use applications like gqview to filesystems mounted as users, I have tremendous satisfaction at learning system administration and doing user tasks well enough to completely explain them to my friend. It sure is a lot of fun seeing what I expect to see when I use linux both in system administration and in user tasks. And I could not have done it without some very minimal but completely sufficient hints from people in this emailing list. Thanks everyone for giving me confidence and fun in linux. Blessings, Michael Walters _______________________________________________ clug-talk mailing list [EMAIL PROTECTED] http://clug.ca/mailman/listinfo/clug-talk_clug.ca
