Hi, Andrey, sorry for delay. В Ср, 02/10/2013 в 06:38 +0400, Andrey Borzenkov пишет: > В Wed, 02 Oct 2013 00:13:29 +0400 > Peter Volkov <p...@gentoo.org> пишет: > > В Вт, 01/10/2013 в 17:18 +0400, Andrey Borzenkov пишет: > > > On Tue, Oct 1, 2013 at 3:41 PM, Peter Volkov <p...@gentoo.org> wrote: > > > > В Вт, 01/10/2013 в 10:59 +0400, Andrey Borzenkov пишет: > > > >> On Tue, Oct 1, 2013 at 1:51 AM, Peter Volkov <p...@gentoo.org> wrote: > > > >> > We are using may be strange but rather convenient scheme of booting > > > >> > linux where real system root is all inside initramfs (/init is > > > >> > symlink > > > >> > to /sbin/init). Everything works fine but grub2-mkconfig that ends > > > >> > out > > > >> > the error: > > > >> > > > > >> > /usr/sbin/grub2-probe: error: failed to get canonical path of > > > >> > `rootfs'. > > > >> > > > > >> > Sure with root on rootfs this grub2-probe is not supposed to work. > > > >> > > > > >> > # mount | grep ' / ' > > > >> > rootfs on / type rootfs (rw) > > > >> > > > >> Could you show full /proc/mounts (or even better, > > > >> /proc/self/mountinfo)? > > > > > > > > Yup, here is /proc/self/mountinfo: > > > > 1 1 0:1 / / rw - rootfs rootfs rw > > > > > > OK so do I understand it correctly - you are running purely from > > > initramfs and do not have any additional filesystems? > > > > yup. > > > > > On which device do you install grub? Where is your /boot/grub located? > > > > > > Please show full command line and its output used to install grub. > > > > I have single hard drive /dev/sdc with two partitions. First partition > > is formatted with ext4 (second partition is unformatted yet). To install > > grub I mount it to /mnt/root/ directory > > This was not present in mntinfo output. How should others guess it?
Well, I thought that grub2-mkconfig should work even without "/boot" (in my case /mnt/root) mounted. So full output is at the end of this mail. > > and then I run: > > > > grub2-install /dev/sdc --boot-directory=/mnt/root/ > > > > Then my "/boot/grub" is located at (hd0, msdos1)/grub. > > > > You did not show any output from this command, so I assume this command > completes without error? Yes, without any errors. # grub2-install /dev/sdc --boot-directory /mnt/root/ Installation finished. No error reported. And even more, grub2 works correctly if I put grub.cfg into /mnt/root/grub/ and reboot. The problem is that grub2-mkconfig fails at grub2-probe: # /usr/sbin/grub2-probe --target=device / /usr/sbin/grub2-probe: error: failed to get canonical path of `rootfs'. And here is /proc/self/mountinfo with /mnt/root mounted. 1 1 0:1 / / rw - rootfs rootfs rw 14 1 0:3 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw 15 1 0:13 / /run rw,nosuid,nodev,relatime - tmpfs tmpfs rw,mode=755 16 1 0:5 / /dev rw,nosuid,relatime - devtmpfs udev rw,size=10240k,nr_inodes=4081011,mode=755 17 16 0:10 / /dev/pts rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=000 18 16 0:14 / /dev/shm rw,nosuid,nodev,noexec,relatime - tmpfs shm rw 19 1 0:15 / /sys rw,nosuid,nodev,noexec,relatime - sysfs sysfs rw 20 19 0:12 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime - securityfs securityfs rw 21 19 0:7 / /sys/kernel/debug rw,nosuid,nodev,noexec,relatime - debugfs debugfs rw 22 19 0:16 / /sys/fs/cgroup rw,nosuid,nodev,noexec,relatime - tmpfs cgroup_root rw,size=10240k,mode=755 23 22 0:17 / /sys/fs/cgroup/openrc rw,nosuid,nodev,noexec,relatime - cgroup openrc rw,release_agent=/lib64/rc/sh/cgroup-release-agent.sh,name=openrc 24 22 0:18 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime - cgroup cpuset rw,cpuset,clone_children 25 22 0:19 / /sys/fs/cgroup/cpu rw,nosuid,nodev,noexec,relatime - cgroup cpu rw,cpu 26 22 0:20 / /sys/fs/cgroup/cpuacct rw,nosuid,nodev,noexec,relatime - cgroup cpuacct rw,cpuacct 27 22 0:21 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime - cgroup memory rw,memory 28 22 0:22 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime - cgroup devices rw,devices 29 22 0:23 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime - cgroup freezer rw,freezer 30 22 0:24 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime - cgroup blkio rw,blkio 31 22 0:25 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime - cgroup perf_event rw,perf_event 32 1 8:1 / /mnt/root rw,noatime - ext4 /dev/sda1 rw,data=ordered Thanks for you help anyway, -- Peter. _______________________________________________ Help-grub mailing list Help-grub@gnu.org https://lists.gnu.org/mailman/listinfo/help-grub
