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Date:      Fri, 14 Jun 1996 00:57:31 -0700 (PDT)
From:      John-Mark Gurney <gurney_j@nike.efn.org>
To:        FreeBSD Hackers <hackers@freebsd.org>
Subject:   has union mount been fixed?
Message-ID:  <Pine.BSF.3.91.960614004838.222I-100000@nike.efn.org>

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I'm wondering because right now I'm running 2.2-960323-SNAP... and I'm 
getting some interesting behavior...  basicly I have made a cd of part of 
my anon ftp site but want to contiue to be able to add and modify it  
(union is perfect for this) so I mount the cd:
mount -t cd9660 /dev/cd1a /mnt

then because the cd is a read-only file system I can't do:
mount -t union /usr/anon /mnt/anon
(which I really don't want to do because of what would happen) but 
instead do this:
mount_union -b /mnt /usr

which then produces this line in df:
<below>/mnt   1246647  1096524    78569    93%    /usr

which is what is should be as /usr and /mnt are:
/dev/sd0s1f    894431   744308    78569    90%    /usr
/dev/cd1a      352216   352216        0   100%    /mnt

now the wierd thing happens... the directories and files are not "passed 
up" from the lower file system when I do an ls...  I just get an empty 
directory... but when I try to read the file... it does exist...  so the 
requests are being passed to the lower file system... just not upon look 
up...

could this have anything to do with caching node info?  and not cleaning 
it when it gets changed?

I'm running on 24megs of ram and this is basicly a personal machine so 
there is very little (if any) swapping that happens...  it's cpu is a Amd 
5x86-133-P75T (that is the full name I believe) but it actually 
outperforms a friends P90 using sysinfo (norton's)...  I'm using a 
Bt946c, a conner CFP1060S 1gig drive for /usr, /, /var, and swap...  the 
cdrom drive is a Chinon cds-535...  thanks for all your help...  TTYL..

John-Mark

gurney_j@efn.org
http://resnet.uoregon.edu/~gurney_j/
Modem/FAX: (541) 683-6954   (FreeBSD Box)

Live in Peace, destroy Micro$oft, support free software, run FreeBSD (unix)




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