Re: UMSDOS BUG
Tom Dyas (tdyas@eden.rutgers.edu)
Fri, 31 May 96 13:50:27 EDT
> I don't know if this is the correct place to post this, but the
> linux-msdos@vger.rutgers.edu seems devoted to dosemu...
>
> When you try the following it reveals a nifty bug in UMSDOS:
>
> Dillweed# mount /dev/hda5 /dos/d -t umsdos
> Dillweed# ls /dos/d/linux
> apps/ home/ root/
> etc/ lodlin16.tgz* slakware/
> Dillweed# mv /dos/d/linux/root/linux-1.99.5.tar.gz /dos/d/linux
> Dillweed# ls /dos/d/linux
> linux-1.99.5.tar.gz
> Dillweed# umount /dos/d
> Dillweed# mount /dev/hda5 /dos/d -t msdos
> Dillweed# ls /dos/d/linux
> --linux-.---* etc/ linux-1_.{__* root/
> apps/ home/ lodlin16.tgz* slakware/
> Dillweed# mv "/dos/d/linux/linux-1_.{__" /dos/d/linux/root/linux1_9.5
> Dillweed# umount /dos/d
> Dillweed# mount /dev/hda5 /dos/d -t umsdos
> Dillweed# ls /dos/d/linux
> Dillweed#
>
> When a file with a long file name is used, UMSDOS creates the
> special file "--linux-.---" which contains its own opinion of the directory
> listing. If it finds such a file, it IGNORES the m$dos directory listing, as
> shown above. This also demonstrates that if the directory listing changes
> indepentant of UMSDOS, it is only aware of the files tracked in its own special
> file. When I first noticed this bug, I thought UMSDOS had just blown
> away all my linux backup stuff (one of the few things m$dos is good for). I
> primarily use UMSDOS to maintain backup files for linux on my m$dos partition,
> and this bug makes it nasty to do so. I don't want to stick with 8.3 filenames.
> Keep up the great work,
> Erik
>
> Erik B. Andersen
> 2485 South State St. email: andersee@et.byu.edu
> Springville, Ut 84663 phone: (801) 489-1231
> --This message was written using 73% post-consumer electrons--
>
>
>
>
>
If the underlying MSDOS directory changes in any way that is not under the
control of UMSDOS, you must run "umssync" on that directory to print the
--linux-.--- file back into line.
Tom