Re: [systemd-devel] systemd-makefs with very slight data corruption ?
On Mi, 12.02.20 19:19, Xogium (cont...@xogium.me) wrote: > Hi, > I am wondering about how to best implement a mechanism to recreate a specific > filesystem in case of the slightest data corruption done to it. From what I > read > in systemd-makefs manpage, the tool will not trigger if it can detect that a > filesystem is already present. However I'm thinking that in some case, the > data > can get corrupted, yet the filesystem still is reported as ext4 to makefs. > Perhaps I understood wrong, in which case, could I somehow order > systemd-makefs > to be ran only if either systemd-fsck fails, or if mounting fails ? This > filesystem can easily get corrupted due to power loss, and isn't important for > the entire system to work, however it would be nicer if this could be detected > and delt with accordingly. This is currently not supported. Consider filing an RFE issue on github asking for this, this appears to make sense to me. I mean systemd-fsck could just do what systemd-makefs does depending on the exit code of /sbin/fsck... Lennart -- Lennart Poettering, Berlin ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
Re: [systemd-devel] systemd-makefs with very slight data corruption ?
On Wed, Feb 12, 2020 at 10:31 AM Xogium wrote: > I am wondering about how to best implement a mechanism to recreate a > specific > filesystem in case of the slightest data corruption done to it. > I am not sure if there is a built-in method to do what you are asking, but I think you could use a drop-in to do it. Simply use a drop-in to add a requires/after into systemd-makefs for a service of your own. Your service would do whatever checks you want and, if necessary, wipe out the file system altogether, which would then trigger systemd-makefs to rebuild it. You would, of course, need to be careful to write your service intelligently enough to avoid wiping out file systems you care to keep around... ..Ch:W.. ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
[systemd-devel] systemd-makefs with very slight data corruption ?
Hi, I am wondering about how to best implement a mechanism to recreate a specific filesystem in case of the slightest data corruption done to it. From what I read in systemd-makefs manpage, the tool will not trigger if it can detect that a filesystem is already present. However I'm thinking that in some case, the data can get corrupted, yet the filesystem still is reported as ext4 to makefs. Perhaps I understood wrong, in which case, could I somehow order systemd-makefs to be ran only if either systemd-fsck fails, or if mounting fails ? This filesystem can easily get corrupted due to power loss, and isn't important for the entire system to work, however it would be nicer if this could be detected and delt with accordingly. Thanks ! ___ systemd-devel mailing list systemd-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/systemd-devel
