Package: grub-pc Version: 1.99-27+deb7u2 Severity: normal Since lvm2 v2.02.106 its udev rule creates a /dev/disk/by-id/lvm-pv-uuid-<PV_UUID> symlink for PVs:
https://git.fedorahosted.org/cgit/lvm2.git/commit/?id=417e52c13a8156b11c25c411d44bda8b32bf87e4 lvm2 2.02.111-2.2 as present in Debian/jessie includes this change in /lib/udev/rules.d/69-lvm-metad.rules. When debootstrapping Debian/wheezy to a virtio disk from a system running Debian/jessie (or using lvm2 >=v2.02.106) this causes the resulting GRUB installation to look like that (`/media/ngcp-root` is the mounted logical volume with the rootfs which also includes /boot): | root@grml ~ # cat /media/ngcp-root/boot/grub/device.map | (hd0) /dev/disk/by-id/lvm-pv-uuid-RNZHr8-hLlc-nles-X9Gs-RYSp-Mqo7-uZTk6N | (hd1) /dev/vda and failing to boot with: > error: no such disk > Entering rescue mode... > grub rescue> When manually removing the lvm-pv-uuid* symlink from the Debian/jessie system before installing GRUB it works fine: | root@grml ~ # rm /dev/disk/by-id/lvm-pv-uuid-RNZHr8-hLlc-nles-X9Gs-RYSp-Mqo7-uZTk6N | root@grml ~ # ls /dev/disk/by-id | ata-QEMU_DVD-ROM_QM00003@ dm-name-ngcp-swap@ dm-uuid-LVM-lQhnvLyYmhESObLrZcnJs4FTZq9usVDzRex3ImRtrmqhpDH9xKBj22St82lHDADh@ | dm-name-ngcp-root@ dm-uuid-LVM-lQhnvLyYmhESObLrZcnJs4FTZq9usVDzrcMaDfk8O0RionEYRxdjnYxsY6eb0Esi@ | root@grml ~ # grml-chroot /media/ngcp-root/ grub-install --recheck /dev/vda # `grml-chroot` makes sure /proc, /sysfs and /dev are properly mounted in the chroot | Writing /etc/debian_chroot ... | Installation finished. No error reported. | root@grml ~ # cat /media/ngcp-root/boot/grub/device.map | (hd0) /dev/vda NOTE: This problem seems to exist only for virtio disks. When using a disk on the SATA bus the resulting device.map of the Debian/wheezy system looks like that and boots fine: | root@grml ~ # cat /media/vg0-root/boot/grub/device.map | (hd0) /dev/disk/by-id/ata-QEMU_HARDDISK_QM00005 | (hd1) /dev/disk/by-id/lvm-pv-uuid-lJJr4E-M96R-3eIS-b6YO-5usn-bH5o-osQV2B regards, -mika- -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: https://lists.debian.org/[email protected]
