If I am reading this right you still have unallocated space on /dev/sda? Option 1: If that is the case then with the DVD install just create a new logical volume (ie /dev/VGNAME/rootf8lv) to install Fedora 8 into that logical volume. You can tell the install to use /dev/sdb1 as your /boot again and tell the installer to not format that device which will preserve the old Fedora 6 kernel files. (You might have to manually edit the grub.conf to add Fedora 6 as a boot option afterwards. Option 2: If you can move the data that is on /dev/sda to some other location (and do not forget to exportvg or removevg it from you Fedora 6 install). then you can repartition /dev/sda so that it has 2 partitions which are a /boot ext3 partition and a LVM partition. During the install have Fedora 8 installed to a new logical volume in the new volume group (you could add /dev/sda to the old volume group as well to have all the drives in the same volume group) on /dev/sda. You will have to edit the grub.conf in /dev/sda1 to setup chain loading to /dev/sdb1. On Tue, 2008-01-29 at 12:16 +0100, François Patte wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Timothy Murphy a écrit : > | François Patte wrote: > | > |> I have an fc6 install with LVM and want install f8. > | > | I don't see any problem. > > If this refers to the preceeding, I agree.... > | > |> I have 3 hdd: sda, sdb, sdc. > |> > |> sda has 1 partition: sda1 LVM > |> > |> sdb has 2 partitions: sdb1 ext3 > |> sdb2 LVM > |> > |> sdc has 1 partition: sdc1 LVM > |> > |> sdc1 and sdb2 are in the same volume group. > |> > |> System in living in sdb and sdc and sda is practically free. > |> > |> The root partition / is on sdb1 and all other vital partitions (/usr, > |> swap, /var, /opt, /tmp and /home) are logical volumes on sdc1. > |> > |> My idea is to perform the new install on sda: sda1 will be the root > |> partition /, and build a volume group sda2 for /usr, swap, /opt /tmp and > |> /var; /home will be left where it is. > |> > |> Here begins my problem: I would like, after install retrieve (almost) > |> all files from fc6 install. For /home, there is no problem, I think > |> that, at install time, I will be be asked if I want to keep my /home > |> volume wherever it is. But for other volumes (/var where my dns config > |> is...) or /opt (where my texmf and some other out of standard are) I > |> don't know how to get them once the new system will be installed. > |> > |> How could I access to these partitions for, now, they are mounted on > |> /dev/mapper/.... but these devices are created at boot time in the /dev > |> which is on sdb1 and, even if I mount /dev/sdb1 from the fresh install, > |> I will be unable to access them because the new system is mounted on > |> sda..... > | > | I haven't understood the details of your setup. > | But couldn't you run Knoppix (or one of the other Linux-on-a-CD's) > | and activate your LVM partitions with "vgchange -a y" (as root)? > > This I don't know, I think that I could do something like this using the > rescue cd. > > | Won't "lvdisplay" then tell you the names of the corresponding devices? > > The problem is there: > > ~ ~]# lvdisplay > ~ --- Logical volume --- > ~ LV Name /dev/fedora/usr > <snip> > > This /dev is the one which is currently working on the fc6 (so, in sdb1 > partition). > > Once f8 will be installed on sda, there will be a /dev for f8 on sda1 > but even if I mount /dev/sdb1 (which an ext3 partition, the "/dev" of > this fc6 partition will be empty because the device "fedora" is created > during the fc6 boot.... > > So, I don't know how to mount the "old" logical volumes. > > > | > |> Another (related) question: is it possible, through grub, to have the 2 > |> systems (f8 and fc6) working? I mean, not at the same time but possibly > |> choosen at boot time? what are the magic command to give before > |> installing the bootloader, during the installation of f8, in order to > |> get this possibility. > | > | Again, I'm not sure of your exact question, > | but it is certainly possible to have grub stanzas > | corresponding to different versions of Fedora. > > Yes, of course. > > | > | Personally, I would not rely on the Fedora installation > | to setup things as I desire. > | I would install F8, and then re-write grub.conf > | to contain one or more entries for FC-6. > | You shouldn't need to re-install grub, as far as I can see. > > I was just wondering if I could write some "grub.conf" at install time... > > Thanks for your answer. > > - -- > François Patte > UFR de mathématiques et informatique > Université Paris Descartes > Tél. +33 (0)1 44 55 35 61 > http://www.math-info.univ-paris5.fr/~patte > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.7 (GNU/Linux) > Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org > > iD8DBQFHnwsYdE6C2dhV2JURAv/mAJsEMPVHS4qEMilYwE6jKegevoDm3gCeJu6R > NIDBiZ4RF0lyu0U8Wm3KhUk= > =nbd3 > -----END PGP SIGNATURE----- > -- Adam Hough <adam@xxxxxxxxxxxxxxxx>
