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Description of problem: pam_mount module does not remove the encrypted device mapper files /dev/dm-X (linked in /dev/mapper/...) after logout. Even easier to verify: "mount -t crypt" followed by "unmount" does not remove them. Version-Release number of selected component (if applicable): pam_mount-2.5-2.fc15.i386 Steps to Reproduce: 1. Create a LUKS encrypted partition (e.g. /dev/sda2) 2. mount -t crypt /dev/sda2 /mnt/test 3. umount /mnt/test Actual results: Device mapper file linked from /dev/mapper/_dev_sda2 is still present after umount. Expected results: Device mapper file should be removed. Additional info: I've reported this incident to upstream Jan Engelhardt which was "resolved" by a terse "Works for me" and a reference to the current pam_mount version 2.10 I've compiled 2.10 for my system, but the problem stays the same: the device mapper file will not be removed. However, it shows the following warning: "BIG FAT WARNING: This version of mount.crypt does not support unmounting crypto volumes through umount(8) on systems with read-only mtab yet." /etc/mtab -...-> /proc/self/mtab is read only. This problem is possibly related to bug 683187 and/or 612179.
I also built 2.10 on FC15 (using Till's spec file, thanks) and am seeing inconsistent behavior. Sometimes the device mapper file is removed right away, sometimes after a short amount of time, and sometimes not at all. I've got an ugly workaround: 1. Add this to /etc/security/pam_mount.conf.xml: <cryptumount>/usr/local/sbin/umount.crypt.dmfix %(MNTPT)</cryptumount> 2. Create /usr/local/sbin/umount.crypt.dmfix: #!/bin/bash MNTPT=$1 umount.crypt "$MNTPT" DM=`mount | awk '$3 == "$MNTPT" { print $1 }'` if [[ $DM != "" && -e $DM ]]; then dmsetup remove $DM fi
libHX-3.12.1-1.fc17,hxtools-20120514-1.fc17,pam_mount-2.13-1.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/libHX-3.12.1-1.fc17,hxtools-20120514-1.fc17,pam_mount-2.13-1.fc17
Package libHX-3.12.1-1.fc17, hxtools-20120514-1.fc17, pam_mount-2.13-1.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing libHX-3.12.1-1.fc17 hxtools-20120514-1.fc17 pam_mount-2.13-1.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-9767/libHX-3.12.1-1.fc17,hxtools-20120514-1.fc17,pam_mount-2.13-1.fc17 then log in and leave karma (feedback).
libHX-3.12.1-1.fc17, hxtools-20120514-1.fc17, pam_mount-2.13-1.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.