hfs+ partition read write

[Tommy Trussell]

On Thu, 18 Nov 2004 14:16:39 +0000, Georgia Thomson
<ubuntu-user at georgiagrrl.me.uk> wrote:
> i have a large hfs+ partition on my mac that has been read wite for a
> while, unfortunately i had a power failure, which resulted in everything
> being unmounted uncleanly.
> I cannot get this partition to mount read write, "mount -o remount,rw"
> makes no difference, "mount -o remount,w" has noe ffect either.
> 
> hpmount says it is not a valid hfsplus partition with error number
> "/dev/hda4: This is not a HFS+ volume (Unknown error 4294967295)"
> 
> hpfsck complains the partition does not have a valid signature, 

Greetings -- You may already know from a Google search that this is a
fairly common situation that is often correctable by using the older
hpmount and hpumount commands -- the "native" driver for linux does
not yet have a proper fsck driver but fortunately the older hfstools
utilities can make the "cleanly umounted" flag reset.

Try mounting and umounting the volume using the older utilities and
see if that makes a difference:

  sudo hpmount /dev/xxx
  sudo hpumount 

(substitute your partition for xxx).

It might not hurt to log out and back in, in case there's a process
attempting to do something with that partition. When this happened to
me a couple of weeks ago I did lots of things and I THINK it was just
the hpmount and hpumount commands that took care of it.

It will be great once someone writes a proper fsck.hfsplus utility
that can examine and reset the flags... It will happen eventuallly I'm
sure.