I am testing some kickstarts on ESXi virtual machine with pair of 16GB disks. Partitioning is lvm over raid.

If i am using “logvol –grow i get “ValueError: not enough free space in volume group”
Only workaround i can find is to add –maxsize=XXX where XXX is at least 640MB less than available.
(10 extents or 320Mb per created logical volume)

Following snippet is failing with “DEBUG blivet: failed to set size: 640MB short”

part raid.01 –size 512 –asprimary –ondrive=sda part raid.02 –size 1 –asprimary –ondrive=sda –grow part raid.11 –size 512 –asprimary –ondrive=sdb part raid.12 –size 1 –asprimary –ondrive=sdb –grow raid /boot –fstype=”xfs” –device=”md0″ –level=RAID1 raid.01 raid.11
raid pv.01 –fstype=”lvmpv” –device=”md1″ –level=RAID1 raid.02 raid.12
volgroup vg0 pv.01
logvol / –fstype=”xfs” –grow –size@96 –name=lvRoot –vgname=vg0
logvol swap –fstype=”swap” –size 48 –name=lvSwap –vgname=vg0

If i only add –maxsize164 everything is working.
(but after install i have 640MB in 20 Free PE in vg0, for details see “after –maxsize install”)

logvol / –fstype=”xfs” –grow –size@96 –name=lvRoot –vgname=vg0
——changed to —–>
logvol / –fstype=”xfs” –grow –size@96 –name=lvRoot –vgname=vg0 –maxsize164

Some interesting DEBUG lines :

should it be 11744 or there is 320MB overhead ?

320MB missing again, total of 640MB

nice, i have 9056MB free in vg0 (640MB short but still … )

wtf, who is counting what !!

Could anyone shed some light ?

P.S.

“after –maxsize install”
========================If i limit root logvol with –maxsize164, after installation i get 640MB of free space (20 Free PE).

Missing 640Mb is free according to lvm :
[root@c7-pxe-install ~]# pvdisplay
— Physical volume –