Attention Benny Pedersen,   
      
    BP> lvm2 snapshot rollbacks ?   
      
   No.  Just plain old ext4 partitions created by fdisk (util-linux) and   
   formatted with mke2fs (e2fsprogs) just like mom used to do ... errrrr ... if I   
   had a mom that is.   
      
    BP> but i dont know how cold it could be on the maunting top   
      
   At the moment there are still issues with m4, findutils, and gzip.  Probably   
   more that gentoo requires but these three are a major stumbling block and   
   creativity was required to overcome both the m4 and findutils issues to create   
   packages, even in a chrootable enviroment.  gzip is less of an issue but it is   
   still a deal breaker if not resolved which it was by creating the   
   gzip-1.9.4-9ef6-dirty source as noted in a previous post.  Same with   
   findutils-4.6.0.186-84e8.  With m4 the latest official m4-1.4.18 source is   
   being used although it required bootstrapping to the latest gnulib before it   
   would work with glibc-2.28.  In that case the bootstrap script in the source   
   package was used to create newly bootstrapped m4-1.4.18 source instead of   
   using git sources as in the case of gzip and findutils.   
      
    BP>    ----- glibc-9999.ebuild begins -----   
      
   Whoa!  First off the current bootable rootfs isn't a git version but a fully   
   qualified GNU release.  See https://www.gnu.org/s/libc/ for the details.    
   Before this release the git version(s) tagged as 2.27.9000 were tested in a   
   chroot partition and only once booted when gcc-8.2.0 was released about a week   
   prior to the official glibc-2.28 release on August first.   
      
   The bash script used here to build glibc-2.28 is exactly 1980 bytes containing   
   62 lines of code.   
      
    BP>    ----- glibc-9999.ebuild ends -----   
    BP>   
    BP> thats all :)   
      
   Way more than enough to ascertain it's failure on either of the two machines   
   available here.  All build scripts here are bash based and lack the dependency   
   tracking gentoo prides itself on.  Your posted script requires a gentoo host   
   as well as the proper runtime to engage that script.  No testing required to   
   know that it will fail.   
      
   End transmission.   
      
   ... Fudd's First Law of Opposition:   
       If you push something hard enough, it will fall over.   
   --- GNU bash, version 4.4.23(1)-release (x86_64-silvermont-linux-gnu)   
    * Origin: Little Mikey's Brain - Ladysmith BC, Canada (1:153/7001)