Hi, I'm new to LVM but I'll try to provide you with as much detail as possible... I'm using LVM with a 30G disk. Initially this was a partitioned disk (separated partitions for /usr, /tmp, /var, /boot, / and /home). To use LVM without afecting my performance I migrated the data from /usr, /home, /tmp and /var, deleted them and now I have only the following mounted partitions: Filesystem 1k-blocks Used Available Use% Mounted on /dev/hdb5 822184 714968 65452 92% / /dev/hdb1 23302 1473 20626 7% /boot and i have a swap and a big partiton reserved for lvm as follows: Disco /dev/hdb: 255 cabeças, 63 setores, 3649 cilindros Unidades = cilindros de 16065 * 512 bytes Dispositivo Boot Início Fim Blocos Id Sistema /dev/hdb1 * 1 3 24066 83 Linux /dev/hdb2 3546 3649 835380 5 Estendida /dev/hdb3 3515 3545 249007+ 82 Linux swap /dev/hdb4 4 3514 28202107+ 8e Linux LVM /dev/hdb5 3546 3649 835348+ 83 Linux Partições lógicas fora da ordem do disco (sorry, the output of fdisk is in portuguese, but i think you know the camps by heart :) (I'll tranlate only the last sentence as I don't know if it matters or not: logic partitions out of disk order. That's ok. I then made: vgscan pvcreate /dev/hdb4 vgcreate vg01 /dev/hdb4 follows output from some commands and /proc entries: /sbin/vgdisplay --- Volume group --- VG Name vg01 VG Access read/write VG Status available/resizable VG # 0 MAX LV 255 Cur LV 0 Open LV 0 MAX LV Size 255.99 GB Max PV 255 Cur PV 1 Act PV 1 VG Size 26.89 GB PE Size 4.00 MB Total PE 6884 Alloc PE / Size 0 / 0 Free PE / Size 6884 / 26.89 GB VG UUID sTirvK-2jz3-diSe-bjH2-9hOI-PWcX-DRZy1Q /sbin/vgck vgck -- VGDA of "vg01" in lvmtab is consistent vgck -- VGDA of "vg01" on physical volume is consistent cat /proc/lvm/global LVM driver LVM version 1.0.1-rc4(03/10/2001) Total: 1 VG 1 PV 0 LVs (0 LVs open) Global: 3177 bytes malloced IOP version: 10 3:36:47 active VG: vg01 [1 PV, 0 LV/0 open] PE Size: 4096 KB Usage [KB/PE]: 28196864 /6884 total 0 /0 used 28196864 /6884 free PV: [AA] hdb4 28196864 /6884 0 /0 28196864 /6884 LVs: none cat /proc/lvm/VGs/vg01/group name: vg01 size: 28196864 access: 3 status: 5 number: 0 LV max: 255 LV current: 0 LV open: 0 PV max: 255 PV current: 1 PV active: 1 PE size: 4096 PE total: 6884 PE allocated: 0 uuid: sTir-vK2j-z3di-Sebj-H29h-OIPW-cXDR-Zy1Q cat /proc/lvm/VGs/vg01/PVs/hdb4 name: /dev/hdb4 size: 56404215 status: 1 number: 1 allocatable: 2 LV current: 0 PE size: 4096 PE total: 6884 PE allocated: 0 device: 03:68 uuid: 4usA-WblC-Yxdm-d0hS-chbZ-xuvn-FYG2-3XR1 well, when I try: /sbin/lvcreate -L 2000 -n lv_usr vg01 or without spaces after -L and -n or /sbin/lvcreate -l 500 -n lv01 vg01 (changing spaces too) or /sbin/lvcreate -L2G -nlv_usr vg01 (changing spaces and changing lv name to lv01) I get core dumped I have a 2.4.10 kernel, with a 1.0.6 JFS patch and your latest 1.0.1-rc4 patches applieds. (Note that no partition was mounted using JFS (the partition I had I deleted to use with LVM)). So both / and /boot are ext2. I'll send you the core file, the /etc/lvmconf/vg01.conf and /etc/lvmtab.d/vg01 files (even not knowing if it'll help or not).
Description: Binary data