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Dear colleagues, My apologies for my previous posting where the subject line was meaningless!! I have a problem in that some of the file systems that I wish to mount via nfs will not do so with write permissions set. I have acquired 4 (substantially) identical machines that I intend to use as a cluster (using gigabit ethernet), and also have linked to my other Unix (IRIX) machines (using 100Mbit ethernet). The basic configuration of the new machines is: AMD64 Athlon/1Gbyte RAM/80Gbyte disk/Gigabit ethernet/. Each machine is running Fedora Core 4 obtained from the five x86-64 iso discs. I chose the option to load "everything". The four machines are named Daffodil1, Daffodil2, Daffodil3, Daffodil4 Each of the four discs is partitioned by the loading process thus: /dev/hda1 10 Gbytes / (System) /dev/shm 5 Gbytes (Swapspace) /dev/hda3 65 Gbytes /home (working area) It is my wish to allow each of these four machines to be able to read and write in each other's "working areas". To this end I constructed the (relevant parts of) /etc/fstab thus: . . LABEL=/home1 /home ext3 defaults 1 2 # From the loading process . . Rose:/userdisc12 /userdisc12 nfs rw,bg 0 0 # Mounting an SGI disk . . Daffodil1:/home /daffodil01 nfs rw,bg 0 0 # Added by me Daffodil2:/home /daffodil02 nfs rw,bg 0 0 Daffodil3:/home /daffodil03 nfs rw,bg 0 0 Daffodil4:/home /daffodil04 nfs rw,bg 0 0 . . etc THE PROBLEM Despite requesting that the (remote) mounts are read/write (rw) it has proved impossible for (say) Daffodil1 to be able to write to the file system daffodil02. It is also not possible for daffodil1 to write to daffodil01 even though daffodil01 is effectively an alias for /home on daffodil1. (daffodil1 can write to /home on daffodil1) The machines (daffodil1 --- daffodil4) have no problem in writing on the remote mounted discs on SGI machines (e.g. /userdisc12) What am I missing? Is there some crucial flag that I have not set? Is there a fundamental difference in the way that "mount" works under UNIX and LINUX? Note that machines are named Daffodil1 etc, while file systems are named daffodil01 etc. (extra 0). Any help would be appreciated. Yours truly Peter Bladon |
