* Thomas Lange [Tue Sep 02, 2014 at 07:50:23AM +0200]: > it would be nice if you could debug your pbuilder setup and give more > detailed information what pbuilder is doing concerning mount points.
> Since I'm not using pbuilder, I will be able to debug this in more > details on my own. Execute: sudo cowbuilder --create --basepath /var/cache/pbuilder/base.cow --distribution wheezy --debootstrapopts --variant=buildd to set up the environment and: sudo cowbuilder --bindmounts /var/cache/pbuilder/build --build fai*.dsc to build a package within such a cowbuilder environment. The problem is FAI's usage of mount --make-runbindable, quoting linux-2.6.git/Documentation/filesystems/sharedsubtree.txt | 2d) A unbindable mount is a unbindable private mount | | let's say we have a mount at /mnt and we make is unbindable | | # mount --make-unbindable /mnt | | Let's try to bind mount this mount somewhere else. | # mount --bind /mnt /tmp | mount: wrong fs type, bad option, bad superblock on /mnt, | or too many mounted file systems | | Binding a unbindable mount is a invalid operation. This is exactly what happens, FAI locks the file system WRT bind mounting it somewhere else, so cowbuilder fails to run with its own bindmount. regards, -mika-
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