On Fri, 2015-07-17 at 06:55 +0300, Andrei Borzenkov wrote: > В Wed, 15 Jul 2015 23:03:02 +0800 > sean <x...@suse.com> пишет: > > > Hi All: > > I am trying to test the latest upstream kernel, But i encounter a > > strange issue about systemd. > > When the "systemd" extracted from initrd image mounts the real root file > > system "hda.img" on "/sysroot" and changes root to the new directory, it > > can not found "/sbin/init" and "/bin/sh". > > In fact, These two files exist in the "hda.img". > > How to debug this issue? > > Why does not it enter emergency mode? > > If enter emergency mode, maybe this issue become easy. > > > > You can stop in dracut just before switch root step and examine > environment. At this point root should already be mounted. Thanks very much! How to stop the booting process before switch root? > > > qemu command line: > > qemu-kvm -D /tmp/qemu-kvm-machine.log -m 1024M -append > > "root=UUID=20059b62-2542-4a85-80cf-41da6e0c1137 rootflags=rw > > rootfstype=ext4 debug debug_objects console=ttyS0,115200n8 console=tty0 > > rd.debug rd.shell=1 log_buf_len=1M systemd.unit=emergency.target > > systemd.log_level=debug systemd.log_target=console" -kernel > > ./qemu_platform/bzImage -hda ./qemu_platform/hda.img > > -initrd ./qemu_platform/initrd-4.1.0-rc2-7-desktop+ -device > > e1000,netdev=network0 -netdev user,id=network0 -serial > > file:/home/sean/work/source/upstream/kernel.org/ttys0.txt > > > ... > > > > sean@linux-dunz:~/work/source/upstream/kernel.org/qemu_platform> sudo mount > > -o loop ./hda.img ./hda > > sean@linux-dunz:~/work/source/upstream/kernel.org/qemu_platform> ls -l > > ./hda/sbin/init > > lrwxrwxrwx 1 sean users 26 Jul 14 22:49 ./hda/sbin/init -> > > ../usr/lib/systemd/systemd > > Do you have separate /usr? No, Only one disk partition. > > > sean@linux-dunz:~/work/source/upstream/kernel.org/qemu_platform> ls -l > > ./hda/bin/sh > > lrwxrwxrwx 1 sean users 4 Oct 26 2014 ./hda/bin/sh -> bash > > > > sean@linux-dunz:~/work/source/upstream/kernel.org/qemu_platform> lsinitrd > > ./initrd-4.1.0-rc2-7-desktop+ |grep "sbin\/init" > > -rwxr-xr-x 1 root root 1223 Nov 27 2014 sbin/initqueue > > lrwxrwxrwx 1 root root 26 Jul 14 21:00 sbin/init -> > > ../usr/lib/systemd/systemd > > sean@linux-dunz:~/work/source/upstream/kernel.org/qemu_platform> lsinitrd > > ./initrd-4.1.0-rc2-7-desktop+ |grep "bin\/sh" > > lrwxrwxrwx 1 root root 4 Jul 14 21:00 bin/sh -> bash > > > > > > > >
-- Sean. XinRong Fu Dedicate System Engineer SUSE x...@suse.com (P)+86 18566229618 line SUSE _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
