From: Daniel Clar (Daniel.Clar@supelec.fr)
Date: Mon Jun 16 2003 - 06:08:03 EDT
Hello Managers,
Of course all the links are correct in the /etc/fdmns because the /usr file
system is mounted without any problem and the correct disk flashes.
I've tried several things this week-end :
1) Reinstall a system from scratch on a disk. It's Ok.
2) Use this disk as backup of the current system. When it boots same message
with
> msfs_mount: The mount device does not match the linked device.
> Check linked device in /etc/fdmns/domain
> msfs_mount: Setting root device name to root_device RW
3) Print AdvFS Administration manual for 5.1b and follow whats is described
on page 6-31 to 6-33 (by the way there is a - missing in 7e for vrestore).
It works quite fine.
Reboot the system on the newdisk and the failure is still there.
4) From a running system, mount the backup disk sauvroot-domain#root on the
mnt. It works fine.
5) do /sbin/advfs/fixfdmn on this backup disk : no problem
6) Reboot the backup disk and the problem is still there.
7) in single user mode , try the /sbin/mountroot command which is called by
bcheckrc. This is the one who gives the error messages.
So it's quite difficult to know where the information is kept on a former
disk. One more thing in sysconfig -q io there are 2 lines with root_dev and
root_hardware_id. But theses 2 parameters should be dynamically set, I
think.
Regards
Daniel
>
> The original posting was :
>
> >
> > Hello managers,
> >
> > >From time to time I'm doing a backup of my system disk (dsk0 with / and
> > /usr) on another disk (dsk5).
> >
> > This morning the dsk0 disk has crashed and it was impossible to reboot.
> >
> > So I've used the dks5 disk in modifying the name of the swap device in
> > /etc/sysconfigtab in modifying the link in the /etc/fdmns for the root
> and
> > the usr domain to dsk5a and dsk5g instead of dsk0a and dsk0g, I've moved
> > the
> > dsk5 disk to the place where was the dsk0 disk and rebooted.
> >
> > It seems to work but in fact the root domain is not mounted (there is a
> > root-device mounted) with a message which looks like :
> >
> > The mounted device is not the one corresponding to the linked device.
> Look
> > at /etc/fdmns/domain to correct this.
> >
> > Some idea on this message and how to fix it ?
> >
> > Thanks
> >
> > Daniel
> >
> > Daniel Clar
> > Computer Operations Manager
> > Supelec
> > France
> >
> >
> Thanks to those who gave me some tracks as to put back dsk5 at its
> original
> place but nothing has changed.
>
> I've got a new disk, put it in original place where dsk0 was and the name
> is
> now dsk6.
> On this disk I've regenerated a system as described in Advfs
> Administration
> Manual in copying the 2 filesystems from dsk5, modified the swap space
> designation, modified the links for root_domain and usr_domain.
> I've tried in single user mode and the problem is still there :
>
> exec: /sbin/mount_advfs -F 0x14000 root_domain#root /
> msfs_mount: The mount device does not match the linked device.
> Check linked device in /etc/fdmns/domain
> msfs_mount: Setting root device name to root_device RW
> root_domain#root on / type advfs (rw)
>
> There is absolutely no problem with the usr_domain filesystem :
>
> root_device on / type advfs (rw)
> /proc on /proc type procfs (rw)
> usr_domain#usr on /usr type advfs (rw)
> ......
>
> Does it mean that in the root file system there is something somewhere
> where
> it's written that it has been created on dsk0 and now it's impossible to
> change ?
>
> Thank you for your help
>
> Regards
>
> Daniel
>
>
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