{[ERROR] Need at least 4363 MB free space on cell. Found only 3961 MB.

I decided to patch our 1/4 Exadata and have run prerequisits:

# patchmgr -cells cell_group -patch_check_prereq

and have got the result in all cells:

ed01cel03: [ERROR] Need at least 4363 MB free space on cell. Found only 3961 MB.

The disk examination on the cell shows :
 [root@ed01cel02 ~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/md5   9.9G 5.6G  3.8G   59%   /
- OS Watcher 729Мб, /opt/oracle.oswatcher/osw/archive

- the one big file in strange place, I suppose I should remove this file and all the directory _patch_hctap_:
[root@ed01cel01 _p_]# pwd
/root/_patch_hctap_/_p_

[root@ed01cel01 _p_]# ls -l

total 1241168

-rw-r--r-- 1 root root 1267945472 Aug 1 10:20 11.2.3.1.1.120607.iso

 

Looking for solution I found interesting lines in patchmgr utility:

-cleanup
Clean up all patch files and temporary content on all cells.
If this step can be done manually if patch fails by removing
directory /root/_patch_hctap_ on each cell.

O, my mistake ! I forgot to run:   ./patchmgr -cells cell_group -cleanup

before      # patchmgr -cells cell_group -patch_check_prereq

 

In patchmgr I found other similar messages:

 

- [ERROR] Patch or rollback failed. Please run cleanup before retrying.

- Only if the cleanup fails from prior launch point, use -reset_force instead of -cleanup and then retry.

 

The summary: Don't forgot to run ./patchmgr  -cleanup !