From mboxrd@z Thu Jan 1 00:00:00 1970 From: carl.lowenstein@gmail.com (Carl Lowenstein) Date: Thu, 2 Feb 2012 15:37:42 -0800 Subject: [TUHS] Understanding the /bin, /sbin, /usr/bin, /usr/sbin Split In-Reply-To: <1328224608.3272.for-standards-violators@oclsc.org> References: <1328224608.3272.for-standards-violators@oclsc.org> Message-ID: On Thu, Feb 2, 2012 at 3:16 PM, Norman Wilson wrote: > Lyndon Nerenberg: > >  A well designed system without library bloat can pump out some >  pretty skinny static binaries. > > ======= > > V6, for example.  Or even V7 if carefully pruned. > > Once upon a time, I made an RK05 disk (5MB) with a stripped-down > post-V7 for an 11/45.  It had just enough programs to allow > basic file manipulation and text-processing. > > We used this compact system to allow our secretaries (in a > small university department in the early 1980s) to continue > typing up papers and letters on the day the machine-room > air conditioning was being replaced.  With the doors standing > open and a big fan, we were willing to leave the 11/45 running, > but not the VAX-11/780. > > Due to contractor screwups (when the chilled water was turned > on, it rained up and down the hall--many poorly-soldered > joints in the copper pipes), we actually needed this for a > couple of days, so for safety I shut the system down every > evening, removed the RK05 cartridge, and took it downstairs > to the 11/34 that had a tape drive, where I booted RT11 and > took an image backup with ROLLOUT. You may have been lucky not to need the backup images. My experience with ROLLIN/ROLLOUT early on was that DEC software used only 200 of the 203 tracks available on a RK05. Unix on the other hand also used the 3 spare tracks. 4872 whole blocks. So ROLLIN backups of a Unix RK05 did not always have everything on them. carl --     carl lowenstein         marine physical lab     u.c. san diego                                                  clowenstein at ucsd.edu