Date: Tue, 1 Nov 2016 19:55:51 -0600 From: Alan Somers <asomers@freebsd.org> To: eddyraz <eddyraz.fl@gmail.com> Cc: FreeBSD <freebsd-stable@freebsd.org> Subject: Re: Problems with jail inside ZFS dataset Message-ID: <CAOtMX2gb6Xy8w37rMOJqXVvUo5-NMOT5rXr3azE8_d0gxjqM0A@mail.gmail.com> In-Reply-To: <425a02f7-035a-8c26-8ed2-7f32be6d3373@gmail.com> References: <425a02f7-035a-8c26-8ed2-7f32be6d3373@gmail.com>
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On Tue, Nov 1, 2016 at 5:05 PM, eddyraz <eddyraz.fl@gmail.com> wrote: > > > Good Afternoon., I have A VPS with FreeBSD in a dedicated server with OVH > Hosting. Last week I installed FreeBSD 11, Ran buildworld after that Crea\ > ted a VM within a jail in /local/jails/ ZFS dataset > > While trying to start the VM gave an error that said it could not mount > nullfs. > > I added this in /boot/loader.conf > > nullfs_mount=1 > > later the error changed to: > > Starting jails: cannot start jail "haproxy": > mount: .: Operation not supported by device > jail: haproxy: /sbin/mount -t fdescfs . /local/jails/haproxy/dev/fd: failed > > Following this post in Internet > > https://lists.freebsd.org/pipermail/freebsd-stable/2014-August/079700.html > > I ran the patch that they advised to. and I found in > > http://pastebin.com/5t9zEzkV > > > but while aplying the patch with > > patch /sys/fs/fdescfs/fdesc_vfsops.c sys_fs_fdescfs_fdesc_vfsop > > gives this error. > > ****************************************************************************************************** > Hmm... Looks like a unified diff to me... > The text leading up to this was: > > -------------------------- > |diff --git a/sys/fs/fdescfs/fdesc_vfsops.c b/sys/fs/fdescfs/fdesc_vfsops.c > |index cb5e3c0..7193809 100644 > |--- a/sys/fs/fdescfs/fdesc_vfsops.c > |+++ b/sys/fs/fdescfs/fdesc_vfsops.c > -------------------------- > Patching file /sys/fs/fdescfs/fdesc_vfsops.c using Plan A... > Reversed (or previously applied) patch detected! Assume -R? [y] y > Hunk #1 succeeded at 51 (offset 1 line). > Hunk #2 failed at 79. > No such line 241 in input file, ignoring > Hunk #3 succeeded at 229 (offset -8 lines). > 1 out of 3 hunks failed--saving rejects to > /sys/fs/fdescfs/fdesc_vfsops.c.rej > Hmm... The next patch looks like a unified diff to me... > The text leading up to this was: > -------------------------- > |diff --git a/sys/kern/kern_jail.c b/sys/kern/kern_jail.c > |index 2846eca..791723d 100644 > |--- a/sys/kern/kern_jail.c > |+++ b/sys/kern/kern_jail.c > -------------------------- > File to patch: /sys/kern/kern_jail.c > Patching file /sys/kern/kern_jail.c using Plan A... > Hunk #1 failed at 207. > Hunk #2 failed at 224. > Hunk #3 failed at 4247. > Hunk #4 failed at 4403. > 4 out of 4 hunks failed--saving rejects to /sys/kern/kern_jail.c.rej > Hmm... The next patch looks like a unified diff to me... > The text leading up to this was: > > |diff --git a/sys/sys/jail.h b/sys/sys/jail.h > |index a82a499..a01d665 100644 > |--- a/sys/sys/jail.h > |+++ b/sys/sys/jail.h > > -------------------------- > File to patch: /sys/sys/jail.h > Patching file /sys/sys/jail.h using Plan A... > Hunk #1 failed at 228. > 1 out of 1 hunks failed--saving rejects to /sys/sys/jail.h.rej > done > # > > ************************************************************************************************* > > I asked in serverfault.com but they make me notice that this was a patch for > 10.x and I was applying it to 11. but afterthat no further advance, Ple\ > ase could anyone help me on this. Thanks in advance. ZFS appears to be unrelated to your problem. It sounds like you're trying to mount fdescfs from within a jail. That's not allowed by default. Is your VPS itself a jail? If so, you'll have to ask your hosting provider to set allow.mount.fdescfs=1 in your jail config. Or are you trying to use nested jails? If so, set that same parameter in the config for your outer jail. -Alan
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