Mr. Macvicar: Thank you! These instructions are perfect, and I shall give them a try! Very Respectfully, Stuart Blake Tener, IT3, USNR-R, N3GWG Beverly Hills, California VTU 1904G (Volunteer Training Unit) stuart@bh90210.net west coast: (310)-358-0202 P.O. Box 16043, Beverly Hills, CA 90209-2043 east coast: (215)-338-6005 P.O. Box 45859, Philadelphia, PA 19149-5859 Telecopier: (419)-715-6073 fax to email gateway via www.efax.com (it's free!) JOIN THE US NAVY RESERVE, SERVE YOUR COUNTRY, AND BENEFIT FROM IT ALL. Friday, September 14, 2001 9:25 AM -----Original Message----- From: Neil Macvicar [mailto:neilm@foobarhouse.com] Sent: Friday, September 14, 2001 4:56 AM To: linux-lvm@sistina.com Cc: stuart@bh90210.net Subject: Re: [linux-lvm] How to boot with LVM? How to mount a ramdisk: 1. modprobe loop (assuming the loopback device is bilt as a module) 2. gunzip initrd.gz 3. mkdir tmp_mount 3. losetup /dev/loop/0 initrd 4. mount /dev/loop/0 tmp_mount NOTE: Your loop device may not be /dev/loop/0 (you need to be using devfs for this naming convention). Under normal /dev it will be /dev/loop0 I believe. Regards, --Neil. ----- Original Message ----- From: "IT3 Stuart B. Tener, USNR-R" <stuart@bh90210.net> To: <linux-lvm@sistina.com> Sent: Thursday, September 13, 2001 10:08 PM Subject: RE: [linux-lvm] How to boot with LVM? > Mr. Macvicar: > > Can you provide instructions on how I might do that? > > > Very Respectfully, > > Stuart Blake Tener, IT3, USNR-R, N3GWG > Beverly Hills, California > VTU 1904G (Volunteer Training Unit) > stuart@bh90210.net > west coast: (310)-358-0202 P.O. Box 16043, Beverly Hills, CA 90209-2043 > east coast: (215)-338-6005 P.O. Box 45859, Philadelphia, PA 19149-5859 > > Telecopier: (419)-715-6073 fax to email gateway via www.efax.com (it's free!) > > JOIN THE US NAVY RESERVE, SERVE YOUR COUNTRY, AND BENEFIT FROM IT ALL. > > Thursday, September 13, 2001 2:08 PM > > -----Original Message----- > From: linux-lvm-admin@sistina.com [mailto:linux-lvm-admin@sistina.com]On Behalf Of Neil Macvicar > Sent: Thursday, September 13, 2001 2:13 PM > To: linux-lvm@sistina.com > Subject: Re: [linux-lvm] How to boot with LVM? > > A few notes I missed: This ramdisk I made myself. You can mount it on > loopback after untarring it to examine it's contents. It's size sould be set > to 8192. > > Regards, > --Neil. > > ----- Original Message ----- > From: "Neil Macvicar" <neilm@foobarhouse.com> > To: <linux-lvm@sistina.com> > Sent: Thursday, September 13, 2001 1:15 PM > Subject: Re: [linux-lvm] How to boot with LVM? > > > > If it's any help, I have put my initrd on public ftp at > > fruits.foobarhouse.com in the LVM directory. It's served me well for as > long > > as I've been using LVM'ed root. > > > > I'm currently using LVM 0.9.1beta8. > > > > Regards, > > --Neil. > > > > ----- Original Message ----- > > From: "A.R. (Tom) Peters" <tpeters@xs4all.nl> > > To: <linux-lvm@sistina.com> > > Sent: Thursday, September 13, 2001 8:18 AM > > Subject: [linux-lvm] How to boot with LVM? > > > > > > > I bought a 30 GB HD, and decided to put it under the LVM and put > > > ReiserFS on it. I managed to initialize it fine, and it now has a base > > > Debian install on it, but I cannot manage to boot from it. > > > > > > You cannot boot from a LV; therefore I made a small (16 MB) ext2 > > > partition with a kernel and an initrd. My intended root FS is on a LV, > > > and you need to jump through some hoops to get the kernel mount it on / > > > : that is documented in the LVM-HOWTO and FAQ that comes with the LVM > > > tools. Use of initrd is documented in > > > /usr/src/linux/Documents/initrd.txt . Finally, the Bootdisk-HOWTO > > > helps. > > > > > > I use LVM tools 1.0.1-rc2, and a 2.4.10-pre7 kernel, patched with the > > > patches of the LVM tools; no .rej there. I compiled the LVM binaries > > > with liblvm-10 statically linked, because otherwise the executables in > > > the initrd had problems with finding the .so (I think I know what was > > > going on, but won't go into that now). Therefore I have to make a > > > Ramdisk of 5MB instead of the default 4 MB. > > > > > > My new HD is /dev/hdd, and is the 3rd HD in the system: this allows me > > > to still use my computer to read docs and send you this message. So for > > > now I do not want to put a bootloader on the disk because the hardware > > > config is going to change: instead I use a boot floppy with GRUB. > > > > > > LVM has a utility script lvmcreate_initrd to make an initrd suitable to > > > prepare for mounting a LV on / . > > > > > > The system boots with the floppy; the correct kernel is loaded from the > > > ext2 partition, as well as the initrd; the LVM tools on the initrd are > > > executed and seem to work properly. > > > > > > PROBLEM: subsequently the kernel panics because it still cannot mount a > > > root. > > > > > > I got a GRUB bootdisk that works. /grub/menu.lst : > > > title Linux24 > > > root (hd2,4) > > > kernel /vmlinuz-2.4.10-pre7 root=/dev/SYSDISK/Root ramdisk_size=5120 > > > # If I specify root=/dev/ram0 then I get a shell on the rudimentary > > > initrd system. > > > initrd /initrd-lvm-2.4.10-pre7.gz > > > > > > On initrd: > > > > > > etc/fstab: > > > /dev/ram / ext2 defaults 0 0 > > > proc /proc proc defaults 0 0 > > > > > > linuxrc: > > > #!/bin/sh > > > /bin/mount /proc > > > /sbin/vgscan > > > /sbin/vgchange -a y > > > /bin/umount /proc > > > > > > devices: > > > # ls -l dev/SYSDISK/ > > > total 0 > > > brw-rw---- 1 root disk 58, 2 Sep 11 19:23 Opt > > > brw-rw---- 1 root disk 58, 0 Sep 11 19:23 Root > > > brw-rw---- 1 root disk 58, 4 Sep 11 19:23 Scratch > > > brw-rw---- 1 root disk 58, 1 Sep 11 19:23 Usr > > > brw-rw---- 1 root disk 58, 3 Sep 11 19:23 Var > > > crw-r----- 1 root disk 109, 0 Sep 11 19:23 group > > > > > > Kernel: > > > # rdev vmlinuz-2.4.10-pre7 > > > Root device /dev/ram0 # Root device /dev/SYSDISK/Root > > > (-> 0x3a00) does not make a difference > > > # rdev -R vmlinuz-2.4.10-pre7 > > > Root flags 0 # i.e. mount ro > > > # rdev -r vmlinuz-2.4.10-pre7 > > > Ramsize 49152 # i.e. offset=0; bit14=1: load ramdisk; bit15=1: > > > # prompt before loading rootfs - this never happens! > > > > > > What am I supposed to change? The kernel initrd.txt has a long and > > > complicated story on using pivot_root to switch rootfs, but apparently > > > the LVM linuxrc relies on the deprecated method that does this > > > automatically. > > > > > > Any advice welcome. > > > > > > -- > > > > > > #>!$!%(@^%#%*(&(#@#*$^@^$##*#@&(%)@**$!(&!^(#((#&%!)%*@)(&$($$%(@#)&*!^$)^@* > > ^@) > > > > > > Tom "thriving on chaos" Peters > > > NL-1062 KD nr 149 tel. +31-204080204 > > > Amsterdam e-mail tpeters@xs4all.nl > > > > > > > > > _______________________________________________ > > > 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 > > > > > > _______________________________________________ > > 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 > > > _______________________________________________ > 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 > ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿåS{±þ[æT¨¥Sx%SËeS{±þ[æþȬ¶)ÚýÊ&?ÛiÿÿåSËlþ Ȭ¶)ÚýÊ&þf¢-f§þX¬¶)ߣùbzìÿ-ù"y§m.âÕ0s-ý3s¶m§ÿÿà ÿ²+-Svÿr?¿-ù¿=¨-³øhÂÚÿ?Ù¥
