Allow a lot more shared disks (about 700).

Signed-off-by: Martin Schwenke <martin@meltin.net>

diff --git a/config.d/10shareddisk.defconf b/config.d/10shareddisk.defconf
index b28f15dcf7de48d3598782cc0ccac7ccd903a281..2f7eac66a87804495610c8523d5129c386ae8810 100644 (file)
--- a/config.d/10shareddisk.defconf
+++ b/config.d/10shareddisk.defconf
@@ -67,6 +67,11 @@ shared_disk_template ()
            first="a"
        fi
     fi
+
+    local prefix_chars="$(eval echo {a..z})"
+    prefix_chars="${prefix_chars// /}" # Remove spaces
+    # Need prefix in a variable because it is initially empty.
+    local prefix=""
        
     local chars="$(eval echo {${first}..z})"
     chars="${chars// /}" # Remove spaces
@@ -74,8 +79,14 @@ shared_disk_template ()
     local p c
     for p in $(seq 1 $paths) ; do
        for c in $(seq 1 $SHAREDDISK_COUNT) ; do
-           local dev="${chars:0:1}"
-           [ -n "$dev" ] || die "Too many shared disks!  The function shared_disk_template needs to be hacked to allow more shared disks..."
+           if [ -z "$chars" -a -n "$prefix_chars" ] ; then
+               prefix="${prefix_chars:0:1}"
+               prefix_chars="${prefix_chars:1}"
+               chars="$(eval echo {a..z})"
+               chars="${chars// /}" # Remove spaces
+           fi
+           [ -n "$chars" ] || die "Too many shared disks!  The function shared_disk_template needs to be hacked to allow more shared disks..."
+           local dev="${prefix}${chars:0:1}"
            cat <<EOF
     <disk type='file' device='disk'>
       <driver name='qemu' cache='@@SHARED_DISK_CACHE@@'/>