05-vm-profile: define minimal root part as 15GB

- disable detect max disk size. nvme disks was not detect.
- set min disk size as 15GB.

installer-distro-alt-server-v/initinstall.d/05-vm-profile

@@ -3,8 +3,9 @@
 
 message() { echo "vm-profile: $*" >>/tmp/vm-profile.log; }
 
+ROOT_MIN=15   # In Gb
+
 mem="$(sed -n '/^MemTotal/s/[^0-9]//gp' /proc/meminfo)" # in kB
-max_disk="$(sort -rn /sys/block/[hsv]d*/size | head -1)" # in 512-byte sectors
 
 # feel free to suggest better defaults
 if [ "$mem" -le 1048576 ]; then
@@ -21,28 +22,15 @@ else
 	methods='raid plain'
 fi
 
-if [ "$max_disk" -le 20971520 ]; then
-	base=1048576	# less than 10G HDD, choose 1G partitions
-elif [ "$max_disk" -le 52428800 ]; then
-	base=2097152	# 2G up to 25G HDD
-elif [ "$max_disk" -le 209715200 ]; then
-	base=10485760	# 10G up to 100G HDD
-else
-	base=20971520	# 20G otherwise
-fi
+root_min="$[ $ROOT_MIN*1024*1024 ]"
 
 message "mem=$mem k"
 message "swap=$swap k"
-message "max_disk=$max_disk"
-message "base=$base k"
+message "root_min=$root_min k"
 
 # EVMS deals with sectors
 swap="$[ 2*$swap ]"
-base="$[ 2*$base ]"
-
-# The Plan:
-# - provide a few more or less equivalent server partitioning profiles
-# - give larger swap to build servers (RAM sized so tmpfs can get swapped out)
+root_min="$[ 2*$root_min ]"
 
 cat > /var/cache/alterator/vm-profile.scm << _EOF_
  ((rootonly
@@ -50,12 +38,12 @@ cat > /var/cache/alterator/vm-profile.scm << _EOF_
   (action . trivial)
   (actiondata
    ("swap" (size . $swap) (fsim . "SWAPFS") (methods $methods))
-   ("/"    (size $base . #t) (fsim . "Ext2/3") (methods $methods))))
+   ("/"    (size $root_min . #t) (fsim . "Ext2/3") (methods $methods))))
  (server
   (title . "Generic server KVM/Docker/LXD/Podman/CRI-O/PVE (large /var)")
    (action . trivial)
    (actiondata
     ("swap" (size . $swap) (fsim . "SWAPFS") (methods $methods))
-    ("/"    (size $base . $[2*$base]) (fsim . "Ext2/3") (methods $methods))
-    ("/var" (size $base . #t) (fsim . "Ext2/3") (methods $methods)))))
+    ("/"    (size $root_min . $[2*$root_min]) (fsim . "Ext2/3") (methods $methods))
+    ("/var" (size $root_min . #t) (fsim . "Ext2/3") (methods $methods)))))
 _EOF_