This is an error I hadn’t seen before, and here’s how I fixed it.
A mksysb operation was failing with the following error:
Creating information file (/image.data) for rootvg./usr/bin/mkszfile[1157]: FS_MIN_LOG = FS_MIN_LOG * 20480 : 0403-009 The specified number is not valid for this command. 0512-008 mksysb: The mkszfile command failed. Backup canceled. |
A google search revealed it was probably a bad FS causing the problem. To identify which one(s), I ran the following: –
sh -x /usr/bin/mkszfile |
This gave the full output and I could see which file system it was processing when it crashed. I then unmounted the file system, fsck’d it, and remounted it before re-running the mkszfile.
In this case there were four file systems it complained about and after fsck’ing them the mkszfile ran through ok. A re-run of the mksysb then worked ok.
