On Thu, Jul 14, 2011 at 04:27:16PM +0100, Roger Leigh wrote: > On Thu, Jul 14, 2011 at 03:11:12PM +0000, Clint Adams wrote: > > On Thu, Jul 14, 2011 at 02:04:15PM +0100, Roger Leigh wrote: > > > CCing Clint and Aurelien: Does this type of check belong in > > > "ischroot", or would it need adding to a separate (e.g. "isvserver") > > > tool? Is the scope of ischroot limited to plain chroot(2) chroots, > > > > Is the objective here to find out if one is running in a > > "jailed" filesystem namespace but with full access to a > > global process namespace? > > It's mentioned earlier in the bug history. Essentially, at least > in the initscripts case, we don't want to bind mount filesystems > (/var/run on /run) in the chroot case (since the rcS.d scripts > won't run to complete the transition). In the vserver case it's > simply not possible to do any mounting inside the vserver, and so > we need to treat it as if it was a chroot (I'm fairly sure it doesn't > run rcS scripts either). > > So our query is not exactly "is it a chroot?", but > "does it run the rcS scripts". Both chroots and vservers are "no" > for both questions, so we are using the chroot check as a proxy > for the rcS script question (since we can't find out directly). > In our initial "guest_environment" shell function (which is what > became ischroot IIRC) we also had logic to check for a vserver and > treat it like a chroot. Note that in a vserver, ischroot always > fails because /proc/1/root is not readable, even by root, so we > need to check /proc/self/vinfo instead.
Just a quick ping on this bug. Are vservers now working OK with the current ischroot implementation, or is further work needed here? Thanks, Roger -- .''`. Roger Leigh : :' : Debian GNU/Linux http://people.debian.org/~rleigh/ `. `' schroot and sbuild http://alioth.debian.org/projects/buildd-tools `- GPG Public Key F33D 281D 470A B443 6756 147C 07B3 C8BC 4083 E800 _______________________________________________ Pkg-sysvinit-devel mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-sysvinit-devel
