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=4096 --name=lvRoot --vgname=vg0 logvol swap --fstype="swap" --size=2048 --name=lvSwap --vgname=vg0 If i only add --maxsize=13164 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=4096 --name=lvRoot --vgname=vg0 ------changed to -----> logvol / --fstype="xfs" --grow --size=4096 --name=lvRoot --vgname=vg0 --maxsize=13164 Some interesting DEBUG lines : > 15840MB lvmvg vg0 (26) > vg0 size is 15840MB > Adding vg0-lvRoot/4096MB to vg0 > vg vg0 has 11424MB free should it be 11744 or there is 320MB overhead ? > Adding vg0-lvSwap/2048MB to vg0 > vg vg0 has 9056MB free 320MB missing again, total of 640MB > vg vg0: 9056MB free ; lvs: ['lvRoot', 'lvSwap'] nice, i have 9056MB free in vg0 (640MB short but still ... ) > 1 requests and 303 (9696MB) left in chunk > adding 303 (9696MB) to 27 (vg0-lvRoot) wtf, who is counting what !! > failed to set size: 640MB short Could anyone shed some light ? P.S. "after --maxsize install" ========================= If i limit root logvol with --maxsize=13164, after installation i get 640MB of free space (20 Free PE). Missing 640Mb is free according to lvm : [root at c7-pxe-install ~]# pvdisplay --- Physical volume --- PV Name /dev/md1 VG Name vg0 PV Size 15.49 GiB / not usable 22.88 MiB Allocatable yes PE Size 32.00 MiB Total PE 495 >>>>>>>>>>Free PE 20<<<<<<<<<<<< Allocated PE 475 PV UUID uBLBqQ-Tpao-yPVj-1FVA-488x-Bs0K-ebQOmI And i can use it : [root at c7-pxe-install ~]# lvextend -L +640M vg0/lvRoot Extending logical volume lvRoot to 13.47 GiB Logical volume lvRoot successfully resized [root at c7-pxe-install ~]# xfs_growfs / meta-data=/dev/mapper/vg0-lvRoot isize=256 agcount=4, agsize=841728 blks = sectsz=512 attr=2, projid32bit=1 = crc=0 data = bsize=4096 blocks=3366912, imaxpct=25 = sunit=0 swidth=0 blks naming =version 2 bsize=4096 ascii-ci=0 ftype=0 log =internal bsize=4096 blocks=2560, version=2 = sectsz=512 sunit=0 blks, lazy-count=1 realtime =none extsz=4096 blocks=0, rtextents=0 data blocks changed from 3366912 to 3530752 [root at c7-pxe-install ~]# pvdisplay --- Physical volume --- PV Name /dev/md1 VG Name vg0 PV Size 15.49 GiB / not usable 22.88 MiB Allocatable yes (but full) PE Size 32.00 MiB Total PE 495 Free PE 0 Allocated PE 495 PV UUID uBLBqQ-Tpao-yPVj-1FVA-488x-Bs0K-ebQOmI [root at c7-pxe-install ~]#