Hello Robert,
I don't feel authorized to tell you that everything inside base.tgz is
set correctly after untarring (must look inside install script to be
100% sure), but here's a script that I've been using lately. Note
Linux' [sS] and OpenBSD's [tT]. Good that there are standards!
Bill
-----------------------------------------------------------------------
#!/bin/sh
#
# findperms - find node permissions
# Usage: ./findperms [-r [-t]] node
# Writes to stdout
# Will print:
# type mode owner.group path
# type mode owner.group path/tree.. [-r]
# type mode owner.group /tree.. [-r -t]
os="$(uname)"
if [ "X$1" = "X-r" ]; then
recursive=yes
shift
fi
if [ "X$1" = "X-t" ]; then
truncate=yes
shift
fi
if [ -z "$1" ] || [ -n "$truncate" -a -z "$recursive" ]; then
echo "Usage: ./findperms [-r [-t]] node"
exit 1
fi
node="$1"
command="ls -ld $node"
if [ "X$recursive" = "Xyes" ]; then
command="find $node -exec ls -ld {} \;"
fi
subst=" "
if [ "X$truncate" = "Xyes" ]; then
subst=" $node"
fi
# OpenBSD and Linux use different output formats with 'ls -l'
# Merging the two awk commands into one turned out not to be a good idea
(maintenance)
if [ X"$os" = X"OpenBSD" ]; then
eval $command |
sed -e 's/, */,/' -e 's/ ->.*//' |
grep -v "^total" |
awk -F' ' '{ mod=0 }
/^.r......../ { mod += 400 }
/^..w......./ { mod += 200 }
/^...x....../ { mod += 100 }
/^...s....../ { mod += 4000 }
/^....r...../ { mod += 40 }
/^.....w..../ { mod += 20 }
/^......x.../ { mod += 10 }
/^......s.../ { mod += 2000 }
/^.......r../ { mod += 4 }
/^........w./ { mod += 2 }
/^.........x/ { mod += 1 }
/^.........T/ { mod += 1000 }
/^.........t/ { mod += 1001 }
{ printf "%c %04d %s.%s ", substr($1, 1, 1), mod, $3, $4 }
{ if ($9) print $9; else print $8 }' |
sed "[EMAIL PROTECTED]@ @"
elif [ X"$os" = X"Linux" ]; then
eval $command |
sed -e 's/, */,/' -e 's/ ->.*//' |
grep -v "^total" |
awk -F' ' '{ mod=0 }
/^.r......../ { mod += 400 }
/^..w......./ { mod += 200 }
/^...x....../ { mod += 100 }
/^...S....../ { mod += 4000 }
/^...s....../ { mod += 4100 }
/^....r...../ { mod += 40 }
/^.....w..../ { mod += 20 }
/^......x.../ { mod += 10 }
/^......S.../ { mod += 2000 }
/^......s.../ { mod += 2010 }
/^.......r../ { mod += 4 }
/^........w./ { mod += 2 }
/^.........x/ { mod += 1 }
/^.........t/ { mod += 1000 }
{ printf "%c %04d %s.%s ", substr($1, 1, 1), mod, $3, $4 }
{ if ($9) print $9; else print $8 }' |
sed "[EMAIL PROTECTED]@ @"
fi
exit 0
-----------------------------------------------------------------------
On Mon, 2006-12-04 at 14:18 +0100, Robert Urban wrote:
> Hi Misc'ers,
>
> I did something stupid on my 4.0 server and lost the contents of /bin.
> I restored by
> booting from the install-cd, mounting /, /usr, and /var, and running
>
> cd /root-mount; pax -rz -f /cd/4.0/i386/base40.tgz
>
> (please don't ask what the stupid thing was).
>
> I saved my /etc, /var/db, /var/www, /var/cron beforehand, so these were
> not affected.
>
> The pax-connaisseurs among you will immediately notice that I forgot to
> use "-p e" to
> preserve all permissions. I went through manually and reset
> setuid/setguid bits for all
> relevant files, using a 3.9 system as my guide.
>
> My question is, does base40.tgz contain the permissions/ownership that
> the files should
> have after installation?
> Is it appropriate to write a script which uses the permissions and
> owner/group from base40.tgz to restore the same for all existing files
> in the filesystem?
> Or do file permissions/ownership somehow get modified during the
> installation?
>
> thanks,
>
> Rob Urban
