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Add local ISO SR

If you have no shared storage and all your fileservers are virtualised, you probably have no useful place to store ISO images. If your local storage on the XenServer is ext3 format, you can mount a subdir of this as a local iso:

1. Determine UUID of local storage (by name) and check it is of type ext - can also get from XenCenter:

   [root@xenserver01 ~]# xe sr-list name-label=Local\ storage
   uuid ( RO)                : 273752be-58f8-6d04-4a92-191f2015403a
             name-label ( RW): Local storage
       name-description ( RW):
                   host ( RO): xenserver01
                   type ( RO): ext
           content-type ( RO): user
   

2. Make an empty subdirectory (altering UUID as necessary):

   [root@xenserver01 ~]# mkdir /var/run/sr-mount/273752be-58f8-6d04-4a92-191f2015403a/iso
   

3. Add as storage repository (SR), which will return the UUID of the new SR:

   [root@xenserver01 ~]# xe sr-create name-label=ISO type=iso content-type=iso device-config:legacy_mode=true device-config:location=/var/run/sr-mount/273752be-58f8-6d04-4a92-191f2015403a/iso
   d1230b75-d592-af0c-ffee-646d2b5f4b05
   

4. Scan the storage repository:

   [root@xenserver01 ~]# xe sr-scan uuid=d1230b75-d592-af0c-ffee-646d2b5f4b05
   

You can now use something like WinSCP to copy the .iso files to the new directory. Remember to rescan the SR after copying .iso files to it. If you would like to access this as /iso rather than something like /var/run/sr-mount/273752be-58f8-6d04-4a92-191f2015403a/iso, you can use a loopback mount to make the directory accessible as /iso:

1. Make a friendly directory /iso:

   [root@xenserver01 ~]# mkdir /iso
   

2. Then edit /etc/fstab with nano and add:

   /var/run/sr-mount/273752be-58f8-6d04-4a92-191f2015403a/iso /iso none bind 0 0
   

3. Test with mount:

   [root@xenserver01 ~]# mount /iso
   [root@xenserver01 ~]# df /iso
   Filesystem           1K-blocks      Used Available Use% Mounted on
   /var/run/sr-mount/273752be-58f8-6d04-4a92-191f2015403a/iso
                        567397488  39008964 499566408   8% /iso