Hi, I have a firewall which was originally installed with 5.4 release, and it was configured to be resistant to sudden power outages by means of mounting / as read only, and /var and /dev partitions as mfs populated from /mfs/var and /mfs/dev. Here's fstab:
e3f2007c8606c31a.a / ffs ro 1 1 swap /var mfs rw,-P=/mfs/var,-s=32768,nodev,nosuid,noexec 0 0 swap /dev mfs rw,-P=/mfs/dev,-s=8192,-i=128,nosuid,noexec 0 0 Although this is non-critical box on local network, I wanted to keep it up to date so yesterday I upgraded it to 5.5 first, and then to 5.6. It appears that it no longer mounts / as read only. mount output shows the following: /dev/wd0a on / type ffs (local) mfs:15966 on /var type mfs (asynchronous, local, nodev, noexec, nosuid, size=32768 512-blocks) mfs:29006 on /dev type mfs (asynchronous, local, noexec, nosuid, size=8192 512-blocks) Trying to remount it as read/write says device busy: $ sudo mount -ur / mount_ffs: /dev/wd0a on /: Device busy What could be preventing read-only mount? Thank you in advance, -- Marko Cupać https://www.mimar.rs