Hi Alan, Thanks a lot for a quick reply. It turn out that I need to activate LVM at the boot time using rc-update.
Hung Alan McKinnon wrote: > On Saturday 04 April 2009 08:36:08 Hung Dang wrote: > >> Hi all >> I have a strange problem with LVM2. I follow this guide >> http://www.gentoo.org/doc/en/lvm2.xml to create the LVM2 volume named vg >> then create the logical volume /dev/vg/data. Everything went fine and I >> can mount the volume /dev/vg/data to /mnt/data without any problem. >> However, when I restart my computer the logical volume is disappeared. >> I can always replicate this problem by create a new LVM group then >> restart my computer. >> > > Most likely is that the commands necessary to activate the LVM at boot time > are not being run. Test this theory by running as root: > > vgchange -a y > and mount the device. > > If it then works, check the usual things, like /etc/init.d/lvm is in your > boot > runlevel > > Also check dmesg for obvious errors. > >
