i got the same issue; i was unable in any way to chroot /mnt/sysimage after linux rescue as fstab and grub.conf have been changed by upgrade; i fixed them mounting disk on an external usb box. this was my changed fstab: UUID=cf7cd8e9-13c6-4997-88cf-2b2e917736fb / ext3 defaults 1 1 UUID=22309ffe-0180-41bd-a868-9d5b15660781 /home ext3 defaults 1 2 UUID=c46f0b8e-ea34-47f5-8c7f-57a7f3a5d531 /boot ext3 defaults 1 2 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 UUID=817d341a-8daa-43dd-8c97-2eea4c1f418f swap swap defaults 0 0 i restored it to: [09:34:12 root@matanui /var/log ]# cat /etc/fstab /dev/VolGroup00/LogVol00 / ext3 defaults 1 1 /dev/VolGroup00/LogVol02 /home ext3 defaults 1 2 /dev/sda1 /boot ext3 defaults 1 2 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 /dev/VolGroup00/LogVol01 swap swap defaults 0 0 this was my grub.conf changed by upgrade: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Fedora (2.6.25.6-55.fc9.i686) root (hd0,0) kernel /vmlinuz-2.6.25.6-55.fc9.i686 ro root=UUID=cf7cd8e9-13c6-4997-88cf-2b2e917736fb rhgb quiet initrd /initrd-2.6.25.6-55.fc9.i686.img title Fedora (2.6.25.4-30.fc9.i686) root (hd0,0) kernel /vmlinuz-2.6.25.4-30.fc9.i686 ro root=UUID=cf7cd8e9-13c6-4997-88cf-2b2e917736fb rhgb quiet initrd /initrd-2.6.25.4-30.fc9.i686.img i restored it to: # grub.conf generated by anaconda # # Note that you do not have to rerun grub after making changes to this file # NOTICE: You have a /boot partition. This means that # all kernel and initrd paths are relative to /boot/, eg. # root (hd0,0) # kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00 # initrd /initrd-version.img #boot=/dev/sda default=0 timeout=5 splashimage=(hd0,0)/grub/splash.xpm.gz hiddenmenu title Fedora (2.6.25.6-55.fc9.i686) root (hd0,0) kernel /vmlinuz-2.6.25.6-55.fc9.i686 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.25.6-55.fc9.i686.img title Fedora (2.6.25.6-55.fc9.i686) root (hd0,0) kernel /vmlinuz-2.6.25.6-55.fc9.i686 ro root=UUID=cf7cd8e9-13c6-4997-88cf-2b2e917736fb rhgb quiet initrd /initrd-2.6.25.6-55.fc9.i686.img title Fedora (2.6.25.4-30.fc9.i686) root (hd0,0) kernel /vmlinuz-2.6.25.4-30.fc9.i686 ro root=UUID=cf7cd8e9-13c6-4997-88cf-2b2e917736fb rhgb quiet initrd /initrd-2.6.25.4-30.fc9.i686.img at last i was able to chroot and then i issued: grub-install /dev/sda then i was able to boot my fc9. i investigated on /var/log/yum.log to find the *guilt*; here it is the excerpt: Jun 13 13:54:46 Updated: selinux-policy-3.3.1-64.fc9.noarch Jun 13 13:55:08 Updated: selinux-policy-targeted-3.3.1-64.fc9.noarch Jun 13 13:55:35 Updated: selinux-policy-devel-3.3.1-64.fc9.noarch Jun 13 13:55:40 Updated: logwatch-7.3.6-22.fc9.noarch Jun 13 13:55:47 Updated: kernel-headers-2.6.25.6-55.fc9.i386 Jun 13 13:57:04 Updated: 1:java-1.6.0-openjdk-javadoc-1.6.0.0-0.15.b09.fc9.i386 Jun 13 13:57:14 Installed: kernel-devel-2.6.25.6-55.fc9.i686 Jun 13 13:57:23 Updated: nspr-4.7.1-0.9.1.fc9.i386 Jun 13 13:57:28 Updated: nss-3.12.0.3-0.9.1.fc9.i386 Jun 13 13:57:55 Updated: 1:java-1.6.0-openjdk-1.6.0.0-0.15.b09.fc9.i386 Jun 13 13:57:57 Updated: postgresql-libs-8.3.3-1.fc9.i386 Jun 13 13:57:58 Updated: kpartx-0.4.7-15.fc9.i386 Jun 13 13:57:59 Updated: device-mapper-multipath-0.4.7-15.fc9.i386 Jun 13 13:58:00 Updated: 1:java-1.6.0-openjdk-plugin-1.6.0.0-0.15.b09.fc9.i386 Jun 13 13:58:02 Updated: nss-tools-3.12.0.3-0.9.1.fc9.i386 Jun 13 13:58:31 Installed: kernel-2.6.25.6-55.fc9.i686 Jun 13 13:58:32 Updated: gstreamer-plugins-farsight-0.12.7-2.fc9.i386 Jun 13 13:58:34 Updated: gdb-6.8-10.fc9.i386 Jun 13 13:58:35 Updated: nspr-devel-4.7.1-0.9.1.fc9.i386 Jun 13 13:58:36 Updated: nss-devel-3.12.0.3-0.9.1.fc9.i386 Jun 13 13:59:09 Installed: kernel-2.6.25.6-55.fc9.i686 my suspects are on Jun 13 13:57:59 Updated: device-mapper-multipath-0.4.7-15.fc9.i386 reading /usr/share/doc/device-mapper-multipath-0.4.7/FAQ ++++++++++++++++++++++++++++++++++++++++ * in /boot/grub/menu.lst, define the root= kernel parameter Example : root=/dev/system1 * modify /etc/fstab to reference /dev/system* partitions At reboot, you should see some info like : path /dev/sda : multipath system ++++++++++++++++++++++++++++++++++++++++ At reboot you can see a very unexpted christmas gift! i think that device-mapper-multipath has changed my /boot/grub/menu.lst and /etc/fstab, but some othr changes are missing; further, chkconfig multipathd --list is off off off off off then multipathd doesn't get started at boot and changes on grub.conf and fstab are devasting -m -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list