Hello,
Can you please explain (in detail )how to do a full backup and then
restore everything on a HP50g? ( keys, alarm, home, every dir.,
libs,flags, have I forgot something? ) Where should I place the
backup? SD or flash? How to use STARTUP?
Thanks,
Pelle

On Sat, 16 Jun 2007 06:40:20 -0500, Pelle wrote:

> Can you please explain (in detail )how to do a full backup
> and then restore everything on a HP50g? ( keys, alarm, home,
> every dir., libs,flags, have I forgot something? )
> Where should I place the backup? SD or flash?
> How to use STARTUP?

Everyone must have scattered, due to Saturday Night Fever;
otherwise this would have been answered several times by now :)

Save current flags and path:  PUSH

Make a first-time startup (warmstart) program:

  \<< POP PUSH \>> HOME 'STARTUP' STO

Now back up HOME (and every dir), UserKeys, Alarms:

  :2:BK123 ARCHIVE (into on-board flash, why not always?)
  or
  :3:BK123 ARCHIVE (into removable SD flash card)

If all of your separate library files and the above backups
currently reside in on-board flash (port 2),
(which itself survives all batteries going dead,
as well as most -- but not all -- on-board mishaps),
you can use the Filer to copy them all to a removable SD card,
which can then also be used to transport them to a computer,
and/or email them as attachments to your Gmail/Yahoo accounts,
engage squirrels to bury extra copies in the back yard, etc. :)

Restoring all to a brand new HP50G (or a trashed old one):

o Use Filer to copy libraries and backup files from SD to port 2,
  if they had been lost from on-board flash.

o Get into RPN mode, then
  :2:BK123 RESTORE

o Set the date and time (the only thing that can't be backed up :)

Even the smallest SD card also has plenty of room
for saving the manuals as PDF files (use a subdirectory
for all files that are not directly useful within the calculator);
the current ROM image and its corresponding "update.scp" file
can also be kept in the SD root directory,
just in case you find a discarded calc in a thrift store,
and need to update its ROM, too :)

The SD card can also be handy for importing files from your computer,
without fussing with the cable and the transfer software;
binary files or even ascii source files
can be copied from the card using the Filer,
although ascii source files with "backslash codes" like \<< \>>
need at least one small program in the calc to interpret them;
that initial small 'IN' program (plus more programs
which that one can import by itself) may be found here:

http://groups.google.com/group/comp.sys.hp48/msg/4e7ed90b3cf11c42

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