[Info-vax] Container files are set to grow in importance on the IT road ahead

[John Reagan]

On Thursday, February 4, 2016 at 9:40:06 AM UTC-5, Craig A. Berry wrote:
> On 2/4/16 7:54 AM, Kerry Main wrote:
> >> -----Original Message-----
> >> From: Info-vax [mailto:] On Behalf Of hb
> 
> >> Hard links do not point from one disk to another. So something else was
> >> used by GNV.
> 
> > Well, there must be a hard or soft link of some sort because after the fact,
> > I did a dir... on all the non-system disk GNV sub directories and a number
> > of system dir's showed up. Hence, the original delete/tree cmd continued
> > deleting on the system disk.
> 
> It's possible that the POSIX root business and related mount points are 
> what you tripped over.  If you figure out how those things work, please 
> explain them to me :-).  I don't know if "SET NOROOT" or "SET ROOT NL:" 
> might've prevented the disaster, but they'd be worth a try.  Or umnt on 
> whatever mount points were aimed at your system disk, if any.

It is/was the automatic mount points created by PSX$UP_STARTUP.COM that is invoked by the GNV$STARTUP.COM procedure.  Recent GNVs no longer do that.

And there are lots of SET FILE /ENTERs in the GNV installation.  That is how it has both "ls.;" and "gnv$ls.exe".  (but they are never cross disk)

$ dir/file gnu:[bin]ls.;,*LS.EXE

Directory GNU:[BIN]

ls.;1                (143964,6,0)
gnv$ls.exe;1         (143964,6,0)

Total of 2 files.