X-Git-Url: https://git.grml.org/?p=grml2usb.git;a=blobdiff_plain;f=grml2iso;h=ecf9c827d14e4345c82e66be1ed0dbd83dfd5b24;hp=8f4d7b841965cc15f99032f8cabcfe9bd576c417;hb=7a5091a230c93ae5d7c4d873a10aad16eb949bb3;hpb=9e7a48deb5c2046c7087e1f998748914b01b12be

diff --git a/grml2iso b/grml2iso
index 8f4d7b8..ecf9c82 100755
--- a/grml2iso
+++ b/grml2iso
@@ -7,6 +7,9 @@
 # License:       This file is licensed under the GPL v2 or any later version.
 ################################################################################
 
+# make sure we have the sbin directories in our PATH to find grml2usb ootb
+PATH="${PATH}:/sbin:/usr/local/sbin:/usr/sbin"
+
 # define function getfilesize before "set -e" {{{
   if stat --help >/dev/null 2>&1; then
     getfilesize='stat -c %s'        # GNU stat
@@ -29,12 +32,12 @@ elif which mkisofs >/dev/null 2>&1; then
 elif which genisoimage >/dev/null 2>&1; then
   MKISOFS='genisoimage'
 else
-  echo >&2 "Error: neither mkisofs nor genisoimage available - can not create ISO."
+  echo "Error: neither xorriso nor mkisofs nor genisoimage available - can not create ISO." >&2
   exit 1
 fi
 
 if ! which isohybrid >/dev/null 2>&1 ; then
-  echo "Error: isohybrid executable not found (install syslinux?)." >&2
+  echo "Error: isohybrid executable not found (install syslinux/isolinux/syslinux-utils?)." >&2
   exit 1
 fi
 # }}}
@@ -63,7 +66,7 @@ Options:
                          during build. Defaults to /tmp/grml2iso.tmp if unset.
 
      Examples:
-     $0 -s http://192.168.23.42:8000/grml/ -o small.iso grml64_2010.12.iso
+     $0 -s http://192.168.23.42:8000/grml/ -o small.iso grml64-small_2018.12.iso 
 
      Will generate a file small.iso which tries to download the squashfs file from
      http://192.168.23.42:8000/grml/ - the squashfs file is placed in the same
@@ -91,7 +94,7 @@ Options:
       r)   GRML2USB_OPTS+=(--remove-bootoption="$OPTARG");;
       p)   GRML2USB_OPTS+=("$OPTARG");;
       s)   URI="$OPTARG";;
-      t)   WRKDIR="$OPTARG";;
+      t)   WRKDIR="$(readlink -f "$OPTARG")";;
       ?)   usage 2;;
     esac
   done
@@ -129,7 +132,8 @@ Options:
 
 # check for grml2usb {{{
   if [ ! -x "$(which $GRML2USB)" ] && [ ! -x "$GRML2USB" ] ; then
-    echo >&2 "Error: Could not find grml2usb"
+    echo "Error: Could not find grml2usb executable. Is /usr/sbin missing in PATH?" >&2
+    echo "Tip: run GRML2USB=/usr/sbin/grml2usb grml2iso ... as workaround" >&2
     if [ -x "./$GRML2USB" ] ; then
       echo >&2 "If you executed grml2iso from the grml2usb repository use"
       echo >&2 "GRML2USB=./grml2usb $0 $*"
@@ -178,6 +182,7 @@ Options:
 # efi boot {{{
   # default, independent of UEFI support
   BOOT_ARGS="-no-emul-boot -boot-load-size 4 -boot-info-table -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat"
+  UEFI_ENABLE=false
 
   case "$MKISOFS" in
     xorriso*)
@@ -186,15 +191,20 @@ Options:
         echo "Disabling (U)EFI boot support since xorriso version is not recent enough."
       else
         echo "xorriso with -eltorito-alt-boot support present"
+        UEFI_ENABLE=true
 
         if ! [ -r "${WRKDIR}/cddir/boot/efi.img" ] ; then
-          echo "File /boot/efi.img not found, not extending boot arguments for (U)EFI boot."
+          echo "Warning: File /boot/efi.img not found, not extending boot arguments for (U)EFI boot."
+          UEFI_ENABLE=false
         else
           echo "/boot/efi.img found, extending boot arguments for (U)EFI boot."
           BOOT_ARGS="$BOOT_ARGS -boot-info-table -eltorito-alt-boot -e boot/efi.img -no-emul-boot"
         fi
       fi
       ;;
+    *)
+      echo "Using $MKISOFS for ISO generation (lacking UEFI option), disabling (U)EFI boot support."
+      ;;
   esac
 # }}}
 
@@ -274,11 +284,15 @@ Options:
 # }}}
 
 # make ISO dd-able {{{
-  if isohybrid --help | grep -q -- --uefi ; then
-    echo "isohybrid version supports --uefi option, enabling"
-    ISOHYBRID_OPTIONS=--uefi
- else
-    echo "isohybrid version does NOT support --uefi option, disabling"
+  if ! $UEFI_ENABLE ; then
+    echo "Skipping check for --uefi option in isohybrid since prerequisites are not fulfilled."
+  else
+    if ! isohybrid --help | grep -q -- --uefi ; then
+      echo "isohybrid version does NOT support --uefi option, disabling"
+    else
+      echo "isohybrid version supports --uefi option"
+      ISOHYBRID_OPTIONS=--uefi
+    fi
   fi
 
   echo "Creating dd-able ISO using isohybrid"
@@ -309,4 +323,4 @@ URI: $URI
 # }}}
 
 ## EOF #########################################################################
-# vim:foldmethod=marker ts=2 ft=sh ai expandtab tw=80 sw=3
+# vim:foldmethod=marker ts=2 ft=sh ai expandtab tw=80 sw=2