Date: Sat, 29 Jul 2017 08:34:39 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-fs@FreeBSD.org Subject: [Bug 221064] zfs should not be able to shadow mount on root directory from userspace Message-ID: <bug-221064-3630-5bVQQwI8Ht@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-221064-3630@https.bugs.freebsd.org/bugzilla/> References: <bug-221064-3630@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D221064 --- Comment #6 from David NewHamlet <wheelcomplex@gmail.com> --- (In reply to Poul-Henning Kamp from comment #5) kenv vfs.root.mountfrom=3D"second rootfs(zfs:newtank/rootfs)" and reboot -r= will trigger kernel to stop all running proccess(include first init) and umount first rootfs. After that, kernel will try to mount second filesystem as roo= tfs and execute init from second rootfs.=20 This might be a better way to handle your case. This is a useful feature similar to switch_root in Linux world which is very common in embedded linux. It was introduced by trasz on Sep 18 2015, 5:35 PM. https://reviews.freebsd.org/D3693 --=20 You are receiving this mail because: You are the assignee for the bug.=
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