On Sun, Sep 15, 2002 at 11:53:47PM +0100, Arie Bant@mail.com wrote: > Hello Heinz, > > Thanks for LVM. I have been using it on HP-UX and AIX and provided one can > control the placing of the LV's over the disk so as to avoid excessive head > movement it saves a few problems here and there. > > Hint: On AIX and HP-UX one can, but does not have to, control in which area > of the disk an LV is placed, or even which PV's will be part of it. This > allows leaving spaces between LV's which later can be used to grow them. > The advantage over just making the LV bigger in the first place is that the > intermediate space can be used for growing either LV at a time when one does > not know which LV is going to need more space. > > But now my problem: > > I have installed LVM 1.0.1 on my Mandrake 8.0 Linux box (PIII 550Mhz, 512 > MB) from the Mandrake 8.2 DVDROM. No problems. Arie, first of all: why are you using an older version of LVM1? You should upgrade to 1.0.5. > After creating boot partition, PV, VG and root/usr/var LV's on an extra disk > (/dev/sdb) added to the system, > I have copied the content of the boot directory to the bootpart on the new > disk, > root/usr/var to the new LV's, > used lvmcreate _initrd to create a new boot image, > copied that to the new bootpart, > modified lilo.conf as suggested in the man page for lvmcreate _initrd and > ran lilo and > rebooted from the new FS. > First time vgscan complained that LVM was not installed and suggested > checking the module stuff. > > Indeed I could not find where in the new boot image the lvm module got > loaded. I then modified modules.conf to load the LVM module on the > appropriate devices ( 54 & 109 ), added the module in the appropriate place > in the "lib"directory tree and tried again. Should not be needed, because a modprobe is inserted into /linuxrc by lvmcreate_initrd. Strange. > The system now boots a little further, vgscan has created /etc/lvmtab and > /etc/lvmtab.d, until vgchange says it can not find any volume groups. This could be caused by missing /dev entries for the disks failing vgscan to find some/any PVs. Did lvmcreate_initrd show any errors? > > When I reboot from the existing system it is fine and all the logical > volumes are accessible. > > Any suggestions how to proceed? > > Note: There is a third disk in the system (/dev/sdc/, containing the swap > file system. This used to be /dev/sdb before I added the new disk. I have > changed all references to the "old" /dev/sdb into /dev/sdc in /etc/fstab of > the current root FS. > I have also taken care that the /etc/fstab in the new root LV resembles the > current situation seen from the point of view when that becomes the current > root FS and that lilo.conf in the new boot/root FS is correct for the > situation when in all works and the new disk becomes /dev/sda (I am taking > the old drive out) > > Best Regards, > > Arie Bant. > ******************************* > Maes, Llandrillo > Corwen, LL21 0TE > United Kingdom > tel.: +44 (0)1490 440 487/370 > e-mail: abant@mail.com > > > > > > ******************************* > Maes, Llandrillo > Corwen, LL21 0TE > United Kingdom > tel.: +44 (0)1490 440 487/370 > fax.: +44 (0)870 284 1575 (via e-mail) > e-mail: abant@mail.com > > > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@sistina.com > http://lists.sistina.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html -- Regards, Heinz -- The LVM Guy -- *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Sistina Software Inc. Senior Consultant/Developer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@Sistina.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@sistina.com http://lists.sistina.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://www.sistina.com/lvm/Pages/howto.html
