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Document URL: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/ch-swapspace Section Number and Name: CHAPTER 15. SWAP SPACE Describe the issue: When changing /etc/fstab online in a systemd environment, a 'systemctl daemon-reload' must be run. After editing your /etc/fstab with the sed command, you'll need to run a 'systemctl daemon-reload'. The fstab isn't read and the mount units generated until that is run. Without that, you will have a mount unit created for the old swap LV that will attempt to mount whenever your trigger a udev change event. Suggestions for improvement: Maybe a hint at the end of the page. "If editing /etc/fstab online, ie. with no reboot, then 'systemctl daemon-reload' should be run afterwards to update systemd daemon"
The updated content is now published on the Customer Portal: * 15.1.2. Creating an LVM2 Logical Volume for Swap https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/ch-swapspace#swap-creating-lvm2 * 15.1.3. Creating a Swap File https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/ch-swapspace#swap-creating-file * 15.2.2. Removing an LVM2 Logical Volume for Swap https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/s1-swap-removing#swap-removing-lvm2 * 15.2.3. Removing a Swap File https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/s1-swap-removing#swap-removing-file * 8.3.1. Mounting NFS File Systems Using /etc/fstab https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/nfs-clientconfig#s2-nfs-fstab * 13.2.3. Add the Partition to /etc/fstab https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/s2-disk-storage-parted-create-part#s3-disk-storage-parted-create-part-fstab * 13.3. Removing a Partition https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/s2-disk-storage-parted-remove-part Thanks for your help. I'm closing this bug as CURRENTRELEASE.