>From: Steve Ringwald [mailto:asric@xxxxxxxxx] >Sent: Thursday, December 15, 2005 11:32 PM >To: Daniel B. Thurman >Subject: Re: How to backup root filesystem the correct way.... > > >Daniel B. Thurman wrote: >>> The way that I have found that is easiest is just to run >grub itself. >>> >>> >> >> Are you doing the following below within the CD rescue >> disc? I.E. in the chroot /mnt/sysimage filesystem? >> > >Nope. If you do it that way, you have to do a mount --bind /proc >/dest/proc so that grub can find the drive nods. >>> % grub --no-floppy >>> >>> root (hd0,0) >>> setup (hd0) >>> >>> >> >> I did the above steps and Grub says: >> >> Checking if "/boot/grub/stage1" exists... no >> Checking if "/grub/stage1" exists... yes >> Checking if "/grub/stage2" exists... yes >> Checking if "/grub/e2fs_stage1_5" exists... yes >> Running "embed /grub/e2fs_stage1_5 (hd0)"... 15 sectors >embedded. succeeded >> running "install /grub/stage1 (hd0) (hd0)1_15 p >(hd0,0)/grub/stage2 /grub/grub.conf"... succeeded >> Done. >> > >Ok. This means that in the grub-root partition you specified on hd0 (I >am going to assume 0), it found the rest of the stage binaries that it >needed for the rest of the boot process. So grub is happy, >which is what >the display below shows.. Found the grub.conf/menu.lst files, and the >stage* files. >> Rebooting, and I get this: >> >> Booting from 'Fedora Core (2.6.14-1.1644_FC4)' >> root (hd0,0) >> Filesystem type is ext2rs, partition type 0x83 >> kernel /boot/vmlinuz-2.6.14-1.1644_FC4 ro root=/ rhgb quiet >> >> Error 15: File not found >> >> Hit return key to continue... >> >> It appears that the kernel line for the /boot/vmlinuz >> file is missing, but I *know* this file exists in the >> /boot parition so I am not sure *why* grub thinks this >> kernel file is missing... >> > >Ok. I am going to *assume* that this is because you don't have >a symlink >in /boot pointing back to /boot. (The grub-root would be >relative to the >base of the partition, in this case /boot. So... When you get >the option >of selecting a kernel, hit 'e', and edit the kernel line and >remove all >occurrences of /boot. You might also want to try a >tab-completion on the >vmlinuz and initrd lines to make sure that grub can find them in the >filesystem. (Grub has some nice features, when compared to lilo. :-) ) > >> When I hit the return key, the curses screen appears for >> the grub.conf files so in this case it is obviously able >> to locate the /boot/grub/grub.conf file for which the >> data on the grub-curses window has the correct information. >> > >Right. >> I have a feeling that somehow grub is running before the /boot >> parition is even mounted... or somehow grub is just not able to >> see the /boot contents. It is very odd. I am dead in the water >> right now and need to get this grub issue resolved since I have >> everything else right, I believe... >> > >Nope. Grub actually decodes the location of where the /boot partition >is, and reads the filesystem (hence the stage_xfs, stage_ext2, >etc files). >> Anything I do/try at this point? >I would guess that it is the /boot/boot link not existing (which makes >the above lines point to nothing). > >My /boot looks like this: > >config-2.6.14-1.1644_FC4 System.map-2.6.14-1.1644_FC4 >config-2.6.14-1.1644_FC4smp System.map-2.6.14-1.1644_FC4smp >grub >vmlinuz-2.6.14-1.1644_FC4 >initrd-2.6.14-1.1644_FC4.img vmlinuz-2.6.14-1.1644_FC4smp >initrd-2.6.14-1.1644_FC4smp.img boot > >/boot/boot is a symlink to /boot (just in case I do a typo >cut-and-pasting a config file from another machine). > >My menu.lst/grub.conf file looks like this: > >title Fedora Core (2.6.14-1.1644_FC4smp) > root (hd0,1) > kernel /vmlinuz-2.6.14-1.1644_FC4smp ro >root=/dev/VolGroup00/LogVol01 rhgb quiet > initrd /initrd-2.6.14-1.1644_FC4smp.img > > >Note the lack of /boot in this file. > >I am, unfortunately, extremely tired (very hard few days at work.. >Believe it or not, fighting grub/initrd issues booting off of a CF >file-system.. :-) ) > >A good reference for grub is available from the folks at gentoo. > >http://www.gentoo.org/doc/en/handbook/handbook-x86.xml?part=1&c hap=10#doc_chap2 > >About 1/2 - 3/4 of the way down is a section called "Setting up GRUB >using manual instructions". > >Hopefully, this will give you something additional to work with. If not, >drop me a line and I will see what I can do tomorrow morning. > >Steve > My Outlook breaks the newsgroup threads... I wish this problem would be solved someday... its only been several years... sigh. Anyway - KUDOS TO STEVE!!!! PROBLEM SOLVED!!!! :-) I was missing the boot symlink to /boot itself - there was *nothing* about this requirement anywhere in the manuals as far as I can tell - or I must be blind! This grub issue has been with me since it's ineption - and now I understand how to get grub to work when a seperate /boot partition is required! Thanks to you!!!! :-D GRACIAS, GRAZZIE, DANKE GUT, THANK YOU!!! Dan -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.371 / Virus Database: 267.14.1/204 - Release Date: 12/15/2005
