Additional information : boot parameters used when PXE booting : # generated by fai-chboot for host bugreport with IP XXX.XXX.XXX.XXX default fai-generated
label fai-generated kernel vmlinuz-3.2.0-4-amd64 append initrd=initrd.img-3.2.0-4-amd64 ip=eth0:dhcp root=nfs:/srv/fai/nfsroot/wheezy/amd64:nfsvers=3 aufs rd.lvm=0 FAI_FLAGS=verbose,sshd FAI_ACTION=install On Mon, Feb 3, 2014 at 6:43 PM, Ludovic Pouzenc <lpouz...@gmail.com> wrote: > Package: dracut-network > Version: 020-2 > Severity: normal > > Dear Maintainer, > > I am using dracut because I make automatic debian installation through FAI > (fai-server). > FAI generates a minimal debian (debootstrap), exported via NFS for PXE > booting. > FAI wants this scenario : NFS read-only + writable tmpfs + AUFS > When I boot a physicial or a virtual machine with PXE, the debian > correctly boots, but I have : > > # ls -ld / > drwxrwxrwt 32 root root 260 Feb 3 17:53 / > > The AUFS mont is done by dracut between a 0755 NFS mount point and a 1777 > tmpfs. > The resulting merged filesystem keeps 1777. This is not usual nor safe for > a root. > I expect 0755 for my root. > > This cause some proprietary MegaRAID cli to complain because it checks if > any path > component is writable on the path of an important file and the first test > : "is / writable" ? yes. > > FAI does not seem to change default config values in dracut for this > aspects. > I have successfully circumvent this problem by altering the tmpfs creation > : > > --- ./usr/lib/dracut/modules.d/90aufs/aufs-mount.sh 2012-11-08 > 14:54:14.000000000 +0100 > +++ ./usr/lib/dracut/modules.d/90aufs/aufs-mount.sh.new 2014-02-03 > 18:33:35.827657399 +0100 > @@ -23,7 +23,7 @@ > mount --move $NEWROOT /live/image > > mkdir /cow > -mount -n -t tmpfs tmpfs /cow > +mount -n -t tmpfs -o mode=0755 tmpfs /cow > > mount -t aufs -o noatime,noxino,dirs=/cow=rw:/live/image=rr aufs $NEWROOT > > But I'm not sure that this is the right place to do that. And may be it > could be tunable by the end-user. > > > -- System Information: > Debian Release: 7.3 > APT prefers stable > APT policy: (500, 'stable') > Architecture: amd64 (x86_64) > > Kernel: Linux 3.2.0-4-amd64 (SMP w/1 CPU core) > Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) > Shell: /bin/sh linked to /bin/dash > > Versions of packages dracut-network depends on: > ii dracut 020-2 > ii iputils-arping 3:20101006-1+b1 > ii isc-dhcp-client 4.2.2.dfsg.1-5+deb70u6 > > Versions of packages dracut-network recommends: > pn nbd-client <none> > ii nfs-common 1:1.2.6-4 > pn open-iscsi <none> > > dracut-network suggests no packages. > > -- no debconf information > -- Ludovic Pouzenc
