Package: grub-pc Version: 1.98+20100804-4 Severity: important
Installing a kernel inside a openvz guest chroot fails with: [....] Setting up linux-image-2.6.35-grml64 (grml.00) ... Running depmod. Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/initramfs-tools 2.6.35-grml64 /boot/vmlinuz-2.6.35-grml64 update-initramfs: Generating /boot/initrd.img-2.6.35-grml64 [...] run-parts: executing /etc/kernel/postinst.d/zz-update-grub 2.6.35-grml64 /boot/vmlinuz-2.6.35-grml64 /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?). run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 1 Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.35-grml64.postinst line 346, <STDIN> line 2. [...] It's due to the failing update-grub command in /etc/kernel/postinst.d/zz-update-grub: # update-grub /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?). It fails because of the way openvz guests look like (simfs as rootfs): # /usr/sbin/grub-probe --target=device / /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?). # cat /proc/self/mounts none /proc proc rw 0 0 none /sys sysfs rw 0 0 simfs /dev simfs rw 0 0 It works fine inside a KVM guest chroot which doesn't use the simfs as rootfs: # /usr/sbin/grub-probe --target=device / /dev/vda1 # cat /proc/self/mounts rootfs / rootfs rw 0 0 none /sys sysfs rw,nosuid,nodev,noexec 0 0 none /proc proc rw,nosuid,nodev,noexec 0 0 udev /dev tmpfs rw,size=10240k,mode=755 0 0 none /dev/pts devpts rw,nosuid,noexec,mode=600,ptmxmode=000 0 0 /dev/disk/by-uuid/2bd80bd3-528c-431b-8b4a-47ecd1e27e24 / ext3 rw,errors=remount-ro,data=ordered 0 0 [...] # readlink -f /dev/disk/by-uuid/2bd80bd3-528c-431b-8b4a-47ecd1e27e24 /dev/vda1 I brought up a related issue on the grub mailinglist ~9 months ago: "execution of update-grub in chroots might fail" -> http://www.mail-archive.com/[email protected]/msg14328.html And related as well (but not 100% similar) is issue #538118. If you need further information, testing,... I'd be happy to help out. regards, -mika- -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
