<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Thank you Adam,<div class=""><br class=""></div><div class="">I agree. Concerning is the word.</div><div class=""><br class=""></div><div class="">I restored the TeXLive 2019 tree from a backup. It works. Then I looked for</div><div class=""><br class=""></div><div class=""><blockquote type="cite" class=""><div class=""><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">$ ls /usr/local/texlive/2019/bin/x86_64-darwin/fmt*</span></div></div><div class=""><br class=""></div><div class="">should show fmtutil and friends. This one</div><div class=""><br class=""></div><div class=""><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">$ ls /usr/local/texlive/2019/tlpkg/installer/xz</span></div></div><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><br class=""></span></div><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">should show an xz binary. Also,</span></div><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><br class=""></span></div><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">$ ls -L /Library/TeX/texbin</span></div><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><br class=""></span></div><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;">should show a long list of executables.</span></div></blockquote></div><div class=""><div class="" style="margin: 0px; font-stretch: normal; font-size: 10px; line-height: normal; background-color: rgb(255, 255, 255);"><span class="" style="font-variant-ligatures: no-common-ligatures;"><br class=""></span></div></div><div class="">All came out as you said. Nothing wrong on this count with the pre-update 2019. Yet not only</div><div class="">the “update” failed but it also left the tree in an unusable state. I do not know much about software engineering (I am in the “theory area of CS”) but I suppose that software ought to be better behaved than this.</div><div class=""><br class=""></div><div class="">See attached TXT file (the experiment you asked for). Everything you said should be, is there (before calling the updater).</div><div class=""></div></body></html>