texlive[62540] Master/install-tl: install-tl: document free disk

[commits+preining at tug.org]

Revision: 62540
          http://tug.org/svn/texlive?view=revision&revision=62540
Author:   preining
Date:     2022-03-09 02:32:47 +0100 (Wed, 09 Mar 2022)
Log Message:
-----------
install-tl: document free disk space check

Modified Paths:
--------------
    trunk/Master/install-tl

Modified: trunk/Master/install-tl
===================================================================
--- trunk/Master/install-tl	2022-03-09 01:23:17 UTC (rev 62539)
+++ trunk/Master/install-tl	2022-03-09 01:32:47 UTC (rev 62540)
@@ -3111,6 +3111,14 @@
 For more details on all of the above options, consult the TeX Live
 installation manual, linked from L<https://tug.org/texlive/doc>.
 
+=head1 SPACE CONSTRAINTS
+
+If a POSIX compliant C<df> program is available, the installer will
+check the available disk space in the selected installation location,
+and will abort installation if there is insufficient disk space.
+In case the check is incorrect, setting the environment variable
+C<TEXLIVE_INSTALL_NO_DISKCHECK> to 1 will disable this check.
+
 =head1 ENVIRONMENT VARIABLES
 
 For ease in scripting and debugging, C<install-tl> looks for the
@@ -3139,6 +3147,10 @@
 
 Omit creating the ConTeXt cache.  This is useful for redistributors.
 
+=item C<TEXLIVE_INSTALL_NO_DISKCHECK>
+
+Omit free disk space check.
+
 =item C<TEXLIVE_INSTALL_NO_RESUME>
 
 Omit check for installing on top of a previous installation and then