Hi there, I just learned from inspecting my syslog and reading http://lkml.indiana.edu/hypermail/linux/kernel/0102.0/0500.html that read-only mounting a fs can still cause some write access due to recovery / auto-repair functionality. Imho, this should be documented in man mount: Current man page: -r Mount the file system read-only. A synonym is -o ro. Proposed change: -r Mount the file system read-only. A synonym is -o ro. Note that, depending on the filesystem type, state and kernel behavior, the system may still write to the device. For example, Ext3 will replay its journal if the filesystem is dirty. To prevent this kind of write access, you may want to map the device through a read-only loop device, see command losetup. Best regards, Joachim -- Joachim Wagner System Administrator Centre for Next Generation Localisation (CNGL) Dublin City University Dublin 9 ph: +353 (0)1 700 6915 http://www.cngl.ie/ -- To unsubscribe from this list: send the line "unsubscribe util-linux-ng" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
