"J. R. Okajima" > > If you set RW to the lower branch, you can. > But you wrote that you did copy all files to the upper branch. It means > all modifications are made on tmpfs and you don't need aufs. As long as > the file exists on the upper tmpfs, aufs will never touch the same named > file on the lower. > This was only the first try. For now I'm trying to refine this option, for example put logs to the tmpfs but save crontabs to USB. I have deleted from /mnt/var (on tmpfs) neer everything what I want to be save on USB, for example /var/lib/alsa/asound.state or /var/spool. On /mnt/var there are no directories such as /mnt/var/lib/alsa or /mnt/var/spool. But, as I'm realized they are still written to tmpfs :( I'm afraid that the problem is that I'm creating branch at boot time when only rootfs is mounted, no real read-write USB partition, and aufs register /var as read only.
"J. R. Okajima" > > For the message ioctl, it means the version of your aufs-util doesn't > match your aufs module. You should update aufs-util. > For unmounting, > (from the aufs manual) > ---------------------------------------------------------------------- > When your aufs is the root directory of your system, and your system > tells you some of the filesystem were not unmounted cleanly, try these > procedure when you shutdown your system. > .nf > # mount -no remount,ro / > # for i in $writable_branches > # do mount -no remount,ro $i > # done > .fi > If your xino file is on a hard drive, you also need to specify > `noxino' option or `xino=/your/tmpfs/xino' at remounting root > directory. > ---------------------------------------------------------------------- > In your case, the root dir sould be replaced by /var. > I have read manual, and found this part, but what is confuse me - sorry about - that this small script remount ro every mount, and also those things about xino - where is my xino? Some settings on Squeeze placed to /etc/default/aufs - there are a bunch of scripts, seem little bit strange. By the way. For now I'm trying create branch after whole boot, from root prompt. The /var is read-write for sure at this point. Thanks again for your time and patience to me tovis ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d
