Hi Torsten,
The disk information is calculated by function "save_partition_information" of '/usr/lib/systemimager/perl/SystemImager/Common.pm' in golden client.
FYI: xCAT imgcatpure will run SystemImager command "si_prepareclient" in golden client to calculate resource data of golden client.
"/usr/sbin/si_prepareclient" script will call function "save_partition_information" of '/usr/lib/systemimager/perl/SystemImager/Common.pm" in golden client
I think the format of output of fdisk is out of support scope of "save_partition_information" function, So the disk size calculation went wrong.
If you read below code
----------------------
#vi /usr/lib/systemimager/perl/SystemImager/Common.pm
......
402 sub save_partition_information {
......
569 # 12345678901234567890123456789012345678901234567890123456789012345678901234567890
570 # v5 v12 v12 v12 v22
571 # 1234512345678901212345678901212345678901212345678901234567890121 -> to the end
572 # | | | | | |
573 # Minor Start End Filesystem Name Flags
574 # 1 0.017 20.000 boot, lba
575 # 2 21.000 40.000 FAT lba
576 # 3 41.000 17366.429 lba
577 #
......
569 # 12345678901234567890123456789012345678901234567890123456789012345678901234567890
570 # v5 v12 v12 v12 v22
571 # 1234512345678901212345678901212345678901212345678901234567890121 -> to the end
572 # | | | | | |
573 # Minor Start End Filesystem Name Flags
574 # 1 0.017 20.000 boot, lba
575 # 2 21.000 40.000 FAT lba
576 # 3 41.000 17366.429 lba
577 #
------------------------
We can see the format is legacy format, there is specific line in your disk information
-------------------------
Device Boot Start End MiB #blocks Id System
/dev/sda1 * 1 200 200 204800 83 Linux
/dev/sda2 201 48200 48000 49152000 82 Linux swap / Solaris
/dev/sda3 48201 953836 905636 927371264 83 Linux
/dev/sda4 0 - 0 0 0 Empty
/dev/sda1 * 1 200 200 204800 83 Linux
/dev/sda2 201 48200 48000 49152000 82 Linux swap / Solaris
/dev/sda3 48201 953836 905636 927371264 83 Linux
/dev/sda4 0 - 0 0 0 Empty
-------------------------
I though the column "Boot * " broken the calculate logic of function "save_partition_information"
------------------
#vi /usr/lib/systemimager/perl/SystemImager/Common.pm
608 if (version_cmp($parted_version, '1.6.23') >= 0) {
609 ($minor, $startMB, $endMB, $junk, $leftovers) = split(/\s+/, $_, 5);
610 } else {
611 ($minor, $startMB, $endMB, $leftovers) = split(/\s+/, $_, 4);
612 }
609 ($minor, $startMB, $endMB, $junk, $leftovers) = split(/\s+/, $_, 5);
610 } else {
611 ($minor, $startMB, $endMB, $leftovers) = split(/\s+/, $_, 4);
612 }
-------------
Maybe you can refine "save_partition_information" function of Common.pm in golden client to satisfy your own environment.
Best Regards!
--------------------------------------------------------------
Hu, Wei Hua (胡卫华)
IBM China System Technology Laboratory
Email: huwei...@cn.ibm.com
Tel: 86-10-82453253
Address: Building 28, ZhongGuanCun Software Park,
No.8, Dong Bei Wang West Road, Haidian District Beijing 100193, PRC
北京市海淀区东北旺西路8号中关村软件园28号楼
邮编: 100193
Best Regards!
--------------------------------------------------------------
Hu, Wei Hua (胡卫华)
IBM China System Technology Laboratory
Email: huwei...@cn.ibm.com
Tel: 86-10-82453253
Address: Building 28, ZhongGuanCun Software Park,
No.8, Dong Bei Wang West Road, Haidian District Beijing 100193, PRC
北京市海淀区东北旺西路8号中关村软件园28号楼
邮编: 100193
----- Original message -----
From: Torsten Harenberg <harenb...@physik.uni-wuppertal.de>
To: xcat-user@lists.sourceforge.net
Cc:
Subject: [xcat-user] imgcapture: partition size captured wrong
Date: Sun, Feb 10, 2019 4:41 PM
Dear all,
we are new to xCAT, so please excuse if the questions are somehow
trivial. Actually we have three questions but I will put them into
different mails.
What we try to do:
We run a ~200 node cluster and install one node as golden (not deployed
through xCAT), then use imgcapture to pull it and deploy it onto the
others. We started with a CentOS 6.9 node (moving to CentOS 7 soon,
that's why we need a tool like xCAT now).
First problem occoured is that the partition, the node has:
[root@wnfg002 ~]# sfdisk -uM -l /dev/sda
Disk /dev/sda: 121597 cylinders, 255 heads, 63 sectors/track
Units = mebibytes of 1048576 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End MiB #blocks Id System
/dev/sda1 * 1 200 200 204800 83 Linux
/dev/sda2 201 48200 48000 49152000 82 Linux swap / Solaris
/dev/sda3 48201 953836 905636 927371264 83 Linux
/dev/sda4 0 - 0 0 0 Empty
[root@wnfg002 ~]#
During capture there was a message from the perl script:
[master]: wnfg002:
wnfg002: This client is ready to have its image retrieved. You must now run
wnfg002: the "si_getimage" command on your imageserver.
wnfg002:
wnfg002: Automatically create configuration file for systemconfigurator:
wnfg002: >> /etc/systemconfig/systemconfig.conf
[master]: Getting osimage "wnfg" from wnfg002 to cmu.
[master]: Argument "*" isn't numeric in numeric lt (<) at
/usr/lib/systemimager/perl/SystemImager/Server.pm line 575, <$TEMPLATE>
line 165.
And the 3rd partition (/dev/sda3) end up to be faulty in the deploy script:
/install/sysclone/scripts/wnfg.master
logmsg "Creating partition ${DISK0}3."
START_MB=$END_OF_LAST_PRIMARY
END_MB=$(echo "scale=3; ($START_MB + 1)" | bc)
(the size should be 905635).
Of course I can patch the script, but maybe someone has an idea why the
size got determined wrongly (too large?)
xCAT version is 2.14.5
Kind regards,
Torsten
--
Dr. Torsten Harenberg harenb...@physik.uni-wuppertal.de
Bergische Universitaet
Fakultät 4 - Physik Tel.: +49 (0)202 439-3521
Gaussstr. 20 Fax : +49 (0)202 439-2811
42097 Wuppertal
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