/boot can't be LVM (http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.2/html/Inst allation_Guide/ch04s18s04s02.html). There's no technical reason why / can't be LVM though. In fact, the "logvol" and "volgroup" LVM examples from the RHEL5 installation manuals put / on a logvol. This is from the "Kickstart options" section (http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.2/html/Inst allation_Guide/s1-kickstart2-options.html). If you use the "default" disk partitioning layout, it also puts / on a logvol. Personally, I create the partitions on my systems with a little space for growth and leave the rest of the disk space unallocated. On a 146G drive, I end up with the following: /dev/mapper/ROOTVG-rootlv 5.0G 3.2G 1.6G 68% / /dev/mapper/ROOTVG-tmplv 2.0G 100M 1.8G 6% /tmp /dev/mapper/ROOTVG-optlv 9.7G 499M 8.8G 6% /opt /dev/mapper/ROOTVG-varlv 5.0G 267M 4.5G 6% /var /dev/mapper/ROOTVG-crashlv 64G 180M 63G 1% /var/crash /dev/cciss/c0d0p1 99M 26M 69M 27% /boot And a swap logvol (14G) /dev/mapper/ROOTVG-swaplv partition 14352376 0 -1 There's 36G unallocated and, if necessary, I can easily shrink a number of partitions to reclaim space. The crash partition is a default size for my systems because we tend to allocate the max memory size as a crash partition. Maarten Broekman Email: maarten.broekman@xxxxxxx -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Kenneth Holter Sent: Friday, September 26, 2008 1:52 AM To: General Red Hat Linux discussion list Subject: Re: Do you allocate all disk space to logical volumes duringinstallation? On 9/23/08, mark <m.roth2006@xxxxxxx> wrote: > > Joey Prestia wrote: > > Erling Ringen Elvsrud wrote: > >> Hello list, > > > >> It is often hard to know how much space is needed for > >> different mount points. Increasing the size of a filesystem is commonly > >> described as a safer operation than reducing the size. Do you think > >> saving space (not absolutely needed) for later is a good idea / common > practice? > > > > It is a very good practice to use LVM partitions for any that you > > believe may need to grow later down the road. And we never partition the > > whole disk. You may never need it. But if you do need that space later > > it is invaluable to not have to shut down a machine and add a drive. I > > have found It to be very handy to have the foresight to do this and used > > it many times to be advantageous. > > Yup. As I said in my article "Upgrading Linux" in the July '07 SysAdmin > (now > ceased publication, dammit), I recommend LVM for /usr, /home, and *very* > much > for /opt (since so much software these days wants to be there). I would > *never* > use LVM for /boot or / > > Size: 100M or so for /boot; 4G-8G for /, 20G for /usr, 4G for /var, ditto > for > /tmp, and lots and lots for /opt and /home. > > mark > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > What's the reason for not using LVM for / and /boot? -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
