Jacob Burkamper:
> The mount -o remount,ro call does indeed not succeed.
OK, then let's proceed next step.
- run "lsof" after "rsync"
find the file which makes your /ro busy.
- after "remount,rw" run "fgrep -w /ro /proc/mounts"
confirm that all /ro entries are remounted as RW.
- split the updating files into several groups. for example,
rsync updating/etc /ro
rsync updating/lib /ro
rsync updating/usr /ro
:::
and after for each rsync, try "remount,ro". repeating this step with
narrowing down the updating file, we can find the file which makes
your /ro busy.
J. R. Okajima
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