----- Original Message ----
From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
To: Gabor Laszlo Zsolt <[EMAIL PROTECTED]>
Cc: [email protected]
Sent: Thursday, January 17, 2008 2:20:37 PM
Subject: Re: Read only filesystem with aufs
Hello Gabor,
Gabor Laszlo Zsolt:
> The system works ok, even if it took me a while to figure this way
out , but I can't change nothing on /etc or /var because I can't unmount
them
> I remount the / as rw of course before.
> For umount /var I get
> /var must be outside
> mount : var not mounted already, or bad option
>
> and for umount /etc I get
> umount: /etc: device is busy
>
> my /proc/mounts file has a /var line but no .. etc.. but can't umount
event the var
>
> So How can I write to /etc and /var original directories, bypassing
aufs after remounting / as rw
> PLEASE HELP
Unfortunately, I cannot understand fully how your situation is.
As you might know, you cannot unmount the filesystem which is in
use. After your system is up, I guess some processes is using files
under /etc.
If your /proc/mounts doesn't have an entry for /var, it means that you
didn't mount /var. So you cannot unmount it.
Junjiro Okajima
My /proc/mounts has a /var , does not have a /etc because I mounted that early
at boot in /etc/init.d/rcS script
I see the two aufs mounts in /sys/fs/aufs/brs so both of them are working
Basicaly I remounted /etc and /var to the same directory but as read only and
all the changes are saved elsewhere
But now I am trying to modify the original files but I can't because all I can
see is the aufs mount
They are probably used, becasue are system folders, so I can not umount them.
But how can I then access the original folders then?
/sys/fs/aufs/brs :
none /etc dfe6xxx br:/mnt/rw/etc=rw:/etc=ro
none /var f7d2xxx br:/mnt/rw/var=rw:/var=ro
trying to access the original /etc and /var
How can I do that?
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