Cluster update eligibility check shows the following message:
"Not enough space on / or /boot on these nodes: < affected node name >"
It is caused by to lack of space in root partition ( / ) or in boot partition ( /boot ) on system disk.
Be aware about General Requirements regarding the required disk size for "System" disk.
1. Check partitions utilization on the issued node using the df command, example output of case with full /boot partition:
[root@acinode1]# df -h / /boot
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 7.9G 43G 16% /
/dev/sda1 1014M 1014M 0M 100% /boot
2. In case of the lacking space on the root partition, try to reduce the log rotation per 69964: Acronis Cyber Infrastructure: How to set up custom log rotation.
3. In case of the lacking space on the boot partition ( /boot ), run below command in the affected node to clean-up old and no longer needed kernel packages:
# package-cleanup --oldkernels --count=2
Contact Acronis support for assistance to safely clean up the old logs in case of issues.