On Sun, Feb 15, 2004 at 12:09:46PM -0600, Ken Fuchs wrote: > Heinz Mauelshagen wrote: > > >the missing task was to shrink the LV. > > Yes, I know. The following does that (indirectly): > > # resize_ext2 /<LV path> That would grow the FS back to the LV size, not shrink it down to the FS size which is the intention in this particular case. > > Without the size argument this command resizes the ext2 or ext3 > filesystem to fit the LV (obviating the need to calculate a new size of > the LV that fits the filesystem size which may not even be optimal if > the filesystem size is not a multiple of the extent size). > > # e2fsadm --size <desired size> /<LV path> > > or > > # e2fsadm --extents <desired size in extents> /<LV path> > > Used to resize the LV and ext2 or ext3 filesystem in a single step. > > The whole point of the above two step sequence is to avoid the > possibility of miscalculating the new size of the LV when using > lvreduce(8). It is a safer, though longer way to effectively do a > lvreduce(8) or lvextent(8) when the contained filesystem is ext2 or > ext3. I know. I wrote it ;) The FS was smaller than the LV already due to some unknown problem. > > In my opinion, this is a better solution when one is uncertain about the > correct size to use with lvreduce(8) to shrink the LV to fit either an > ext2 or ext3 filesystem. Absolutely users should prefer using e2fsadm doing LV + ext2/ext3 resizing (presumably they can, because the FS and LV have the same size). Regards, Heinz -- The LVM Guy -- > > The previous message is quoted below. > > Sincerely, > > Ken Fuchs <kfuchs@winternet.com> > > > >On Fri, Feb 13, 2004 at 03:23:41PM -0600, Ken Fuchs wrote: > >> Heinz Mauelshagen wrote: > >> > >> >the size of your filesystem and logical volume differs already. > >> >That's why e2fsadm fails. > >> >Did you eventually run resize2fs in order to shrink the filesystem ? > >> > >> >Your logical volume size is 1091456MB (32MB/PE * 34108 PE) but your > >> >filesystem size is 963584GB (941GB * 1024MB/GB; check with > >> >"tune2fs -l" and look for the block count and block size to calculate > >> >this correctly). > >> > >> >In case the result shows, that your filesystem is already smaller than the LV, > >> >lvreduce the logical volume appropriately. > >> > >> >Use the block count * block size result and round it up to the next PE! > >> > >> To avoid an error in calculating the correct number of logical extents, > >> and possibly doing an lvreduce(8) to a size smaller than the filesystem: > >> > >> Use resize_ext2(8) without a size argument. This will resize the ext2 > >> or ext3 filesystem to be the same size as the logical volume containing > >> it. After doing this, e2fsadm(8) can be used to resize the filesystem > >> and logical volume "simultaneously" to any desired size (that can > >> contain the filesystem's data). > >> > >> Sincerely, > >> > >> Ken Fuchs <kfuchs@winternet.com> > >> > >> _______________________________________________ > >> linux-lvm mailing list > >> linux-lvm@redhat.com > >> https://www.redhat.com/mailman/listinfo/linux-lvm > >> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > > >-- > > > >Regards, > >Heinz -- The LVM Guy -- > > > >*** Software bugs are stupid. > > Nevertheless it needs not so stupid people to solve them *** > > > >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > > >Heinz Mauelshagen Red Hat, Inc. > >Consulting Development Engineer Am Sonnenhang 11 > > 56242 Marienrachdorf > > Germany > >Mauelshagen@RedHat.com +49 2626 141200 > > FAX 924446 > >=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > > > >_______________________________________________ > >linux-lvm mailing list > >linux-lvm@redhat.com > >https://www.redhat.com/mailman/listinfo/linux-lvm > >read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ > > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://www.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ *** Software bugs are stupid. Nevertheless it needs not so stupid people to solve them *** =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Heinz Mauelshagen Red Hat, Inc. Consulting Development Engineer Am Sonnenhang 11 56242 Marienrachdorf Germany Mauelshagen@RedHat.com +49 2626 141200 FAX 924446 =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
