[ET Trac] [Einstein Toolkit] #779: package update

[Einstein Toolkit]

#779: package update
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  Reporter:  knarf                             |       Owner:  dcastl2
      Type:  enhancement                       |      Status:  new    
  Priority:  minor                             |   Milestone:         
 Component:  Einstein Toolkit Virtual Machine  |     Version:         
Resolution:                                    |    Keywords:         
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Comment (by anonymous):

 Replying to [comment:1 rhaas]:
 > The command (from the secure-delete package)
 > {{{
 > sfill -l -l -z -v / # two -l
 > }}}
 > might be useful to fill empty blocks on the hard disk with zeroes to
 improve compressability. Using this lets me compress a (used, with some
 extra packages like atlas-base-dev, scite, VisIt [which is 400MB], maybe
 others) virtual machine disk down to 1.2GB which is not that much larger
 than the original size of 1.1GB. My raw hard disk image is 8GB so I guess
 I must have increased it at one point to make room for eg. VisIt.

 That's a neat command... I'll be sure to use it next time I compress the
 disk image.  I also created an internal swap partition of about 768MB
 which I could overwrite internally with 0s then re-create swapfs before
 compression.

 8GB is the fixed upper size limit of the VM disk.  I had configured the
 disk image for dynamically-expanding storage albeit with an 8GB limit.  Is
 that the internal size according to the guest OS (df -h)?  If not then you
 might have the 'Fixed-sized storage' option selected for the disk, in
 which case it will always occupy 8GB on the host OS.

 > It might also help (while we are all testing this), to just put the
 uncompressed file at a file system location at LSU so that those who have
 LSU accounts (all of us I think) can use rsync to do an efficient update
 of our "local copy".

 I had thought about doing this.  It likely would be more efficient now
 that most of the packages are installed. I'll rsync to one of our servers
 when I finalize my updates this evening.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/779#comment:5>
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