Re: install/54844: ``build.sh install-image'' fails with -V USE_PIGZGZIP=yes

[Paul Goyette <paul%whooppee.com@localhost>]

The following reply was made to PR install/54844; it has been noted by GNATS.

From: Paul Goyette <paul%whooppee.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: install/54844: ``build.sh install-image'' fails with -V
 USE_PIGZGZIP=yes
Date: Mon, 18 Apr 2022 12:20:35 -0700 (PDT)

 OK, I've been looking a little deper into this.  As christos@ asked
 some time ago
 
  	But why is it that much bigger?
 
 The answer seems to be that pigz(1) is not nearly as good as xz(1)
 at compressing NetBSD distribution sets.  Here is a comparison of
 sizes of some distribution sets:
 
  			pigz	 xz
  			----	----
  	base.tgz	 77M	 44M
  	comp.tgz	160M	 69M
  	debug.tgz	1.2G	688M
 
 Since the distribution sets themselves are included in the install
 image, the image's filesystem needs to be a lot bigger.
 
 So, since (1) there's no real bug here, (2) using pigz is not a
 support option, and (3) the problem can be worked around by
 including ``-V INSTIMAGEMB=<size-needed>'' on the build.sh command
 line, I'm going to close this PR.
 
 
 
 +--------------------+--------------------------+----------------------+
 | Paul Goyette       | PGP Key fingerprint:     | E-mail addresses:    |
 | (Retired)          | FA29 0E3B 35AF E8AE 6651 | paul%whooppee.com@localhost    |
 | Software Developer | 0786 F758 55DE 53BA 7731 | pgoyette%netbsd.org@localhost  |
 | & Network Engineer |                          | pgoyette99%gmail.com@localhost |
 +--------------------+--------------------------+----------------------+