Date: Tue, 01 Oct 2024 20:40:28 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 279308] mdmfs does not work as documented Message-ID: <bug-279308-227-rvS5xYCLsK@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-279308-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279308 --- Comment #12 from Michael Proto <mike@jellydonut.org> --- (In reply to Xin LI from comment #10) Not opining on the TRIM-as-default situation, but in regards to using md disks over tmpfs I have one that I use regularly-- remote root-FS maintenance. I can use a memory-backed md disk with "reboot -r" to ensure continuity of a memory disk while rerooting a system. ** connect to a host via ssh mdmfs -s 16g md /mnt ** creates a 16g disk as /dev/md0 cd /mnt dump -0Laf - / | restore rf - umount /dev/md0 kenv vfs.root.mountfrom="ufs:/dev/md0" reboot -r ** reconnect to the host via ssh Now I can do maintenance on the root-FS on the host remotely. This won't work with tmpfs as the file system disappears as soon as it is unmounted. -- You are receiving this mail because: You are the assignee for the bug.help
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