Hello, that is a list of some errors found when doiing a remaster that uses overlayfs as a filesystem modification layer, After doing a big package upgrade we note that the rootdir has some errors, this is only a little percent of the total files contained in the filesystem, 44 files of 86173 overlayfs mounted on /tmp/live-net-remaster-pro1Wm/chroot type overlayfs options rw,relatime,lowerdir=/tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs,upperdir=/home/tmp.7P8ARuGANF CASE 1: complete directory /usr/share/doc/xorg disappears, is in lowerdir, has not been modified, but rootdir does not show it, # lowerdir # find /tmp/live-net-remaster-pro1Wm/image/00filesystem.squashfs/usr/share/doc/ -maxdepth 1 -name 'xorg*' /tmp/live-net-remaster-pro1Wm/image/00filesystem.squashfs/usr/share/doc/xorg # upperdir # find /home/tmp.7P8ARuGANF/usr/share/doc/ -maxdepth 1 -name 'x*' /home/tmp.7P8ARuGANF/usr/share/doc/xserver-xorg-video-ati /home/tmp.7P8ARuGANF/usr/share/doc/xml-core /home/tmp.7P8ARuGANF/usr/share/doc/xserver-xorg-video-radeon (xorg is not listed) # rootdir # find /tmp/live-net-remaster-pro1Wm/chroot/usr/share/doc/ -maxdepth 1 -name 'xorg*' (not listed) directory xorg contains a lot of files, not shown in rootdir. 5 root root 4096 /usr/share/doc/xorg -rw-r--r-- 1 root root 7381 /usr/share/doc/xorg/asciidoc-xhtml11.css -rw-r--r-- 1 root root 4180 /usr/share/doc/xorg/asciidoc-xhtml11.js drwxr-xr-x 2 root root 4096 /usr/share/doc/xorg/faq -rw-r--r-- 1 root root 5163 /usr/share/doc/xorg/faq/general.html -rw-r--r-- 1 root root 2732 /usr/share/doc/xorg/faq/general.txt drwxr-xr-x 2 root root 4096 /usr/share/doc/xorg/howto -rw-r--r-- 1 root root 11521 /usr/share/doc/xorg/howto/build-mesa.html -rw-r--r-- 1 root root 2717 /usr/share/doc/xorg/howto/build-mesa.txt.gz -rw-r--r-- 1 root root 10758 /usr/share/doc/xorg/howto/configure-input.html -rw-r--r-- 1 root root 2891 /usr/share/doc/xorg/howto/configure-input.txt.gz -rw-r--r-- 1 root root 2994 /usr/share/doc/xorg/howto/report-bugs.html -rw-r--r-- 1 root root 1278 /usr/share/doc/xorg/howto/report-bugs.txt -rw-r--r-- 1 root root 6703 /usr/share/doc/xorg/howto/triage-bugs.html -rw-r--r-- 1 root root 3529 /usr/share/doc/xorg/howto/triage-bugs.txt -rw-r--r-- 1 root root 8145 /usr/share/doc/xorg/howto/use-gdb.html -rw-r--r-- 1 root root 1940 /usr/share/doc/xorg/howto/use-gdb.txt.gz -rw-r--r-- 1 root root 10678 /usr/share/doc/xorg/howto/use-xrandr.html -rw-r--r-- 1 root root 2615 /usr/share/doc/xorg/howto/use-xrandr.txt.gz -rw-r--r-- 1 root root 3349 /usr/share/doc/xorg/index.html -rw-r--r-- 1 root root 1341 /usr/share/doc/xorg/index.txt drwxr-xr-x 2 root root 4096 /usr/share/doc/xorg/reference -rw-r--r-- 1 root root 12636 /usr/share/doc/xorg/reference/dependencies.html -rw-r--r-- 1 root root 3415 /usr/share/doc/xorg/reference/dependencies.txt.gz -rw-r--r-- 1 root root 4690 /usr/share/doc/xorg/reference/squeeze- backports.html -rw-r--r-- 1 root root 2565 /usr/share/doc/xorg/reference/squeeze- backports.txt -rw-r--r-- 1 root root 3529 /usr/share/doc/xorg/reference/upstream- contacts.html -rw-r--r-- 1 root root 1392 /usr/share/doc/xorg/reference/upstream- contacts.txt -rw-r--r-- 1 root root 1953 /usr/share/doc/xorg/upstream-features.html -rw-r--r-- 1 root root 556 /usr/share/doc/xorg/upstream-features.txt -rw-r--r-- 1 root root 179 /usr/share/doc/xorg/xsf.css -rw-r--r-- 1 root root 3914 /usr/share/doc/xorg/xsf.png -rw-r--r-- 1 root root 11221 /usr/share/doc/xorg/xsf.svg CASE 2: link /usr/share/man/man1/ucat.1.gz -> unp.1.gz also disappears, same obs. as before, # lowerdir # find /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/usr/share/man/man1/ -maxdepth 1 -name 'ucat*' /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/usr/share/man/man1/ucat.1.gz # upperdir # find /home/tmp.7P8ARuGANF/usr/share/man/man1 -maxdepth 1 -name 'ucat*' (not listed) # rootdir # find /tmp/live-net-remaster-pro1Wm/chroot/usr/share/man/man1/ -maxdepth 1 - name 'ucat1*' (not listed) CASE 3: file /var/lib/dpkg/info/krdc.postrm has been modified, but is not in rootdir # lowerdir # find /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/ -maxdepth 1 -name 'krdc.postrm*' /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/krdc.postrm ls -la /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/krdc.postrm -rwxr-xr-x 1 root root 132 2010-11-28 16:51 /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/krdc.postrm # upperdir # find /home/tmp.7P8ARuGANF/var/lib/dpkg/info/ -maxdepth 1 -name 'krdc.postrm*' /home/tmp.7P8ARuGANF/var/lib/dpkg/info/krdc.postrm # ls -la /home/tmp.7P8ARuGANF/var/lib/dpkg/info/krdc.postrm -rwxr-xr-x 1 root root 132 2011-05-26 04:35 /home/tmp.7P8ARuGANF/var/lib/dpkg/info/krdc.postrm # rootdir # find /tmp/live-net-remaster-pro1Wm/chroot/var/lib/dpkg/info/ -maxdepth 1 - name 'krdc.postrm*' (not listed) CASE 4: file /var/lib/dpkg/info/libgraphicsmagick3.shlibs not modified, is not in rootdir # lowerdir # find /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/ -maxdepth 1 -name 'libgraphicsmagick3.shlibs*' /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/libgraphicsmagick3.shlibs # ls -la /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/libgraphicsmagick3.shlibs -rw-r--r-- 1 root root 82 2011-05-03 20:30 /tmp/live-net-remaster- pro1Wm/image/00filesystem.squashfs/var/lib/dpkg/info/libgraphicsmagick3.shlibs # upperdir # find /home/tmp.7P8ARuGANF/var/lib/dpkg/info/ -maxdepth 1 -name 'libgraphicsmagick3.shlibs*' (not listed) # rootdir # find /tmp/live-net-remaster-pro1Wm/chroot/var/lib/dpkg/info/ -maxdepth 1 - name 'libgraphicsmagick3.shlibs*' (not listed) some additional files about this test can be found in: http://livenet.selfip.com/ftp/debian/overlayfs/ovl-test.tar.bz2 Thanks, Jordi Pujol Live never ending Tale GNU/Linux Live forever! http://livenet.selfip.com -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
