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booting problem

Prashanth Waugh
Esteemed Contributor

booting problem

hello friends
i am using compaq alpha es40 server with TRU 64 unix.After booting in single user mode I check the mount point by using df -k but it is not working in single usermode.so i check the /etc/fstab entries but it is showing only one mount point that is /home4.I am not getting other mount points. so pls help me

For success, attitude is equally as important as ability
8 REPLIES
Vladimir Fabecic
Honored Contributor

Re: booting problem

When you boot unix in single user mode, the only mounted file system is / (read only). This is normal.
What is your problem?
In single user mode you mount all file system with:
# mount -a
And what is your OS version?
Please provide more details about your problem.
In vino veritas, in VMS cluster
Prashanth Waugh
Esteemed Contributor

Re: booting problem

when we start the server, server itself directly going into single user mode.
and gives error :
can't open /dev/rvol/rootdg/home4:No such device or address.
/dev/rvol/rootdg/home4 cant check file system
the following file system had unexpected inconsistency.
/dev/rvol/rootdg/home4(/home4)
unknown error in reboot
init :single user mode

If we try to mount the file system it says
is an invalid device.
can't open /dev/rvol/rootdg/home4

Actually we have many other file systems /home./home1 etc but
in /etc/fstab we have only following entry

/dev/vol/rootdg/home4 /home4 rw 1 2

OS version:Tru 64 unix version 4.0

Thanks
For success, attitude is equally as important as ability
Vladimir Fabecic
Honored Contributor

Re: booting problem

So you are using LSM.
It makes things more complicated.
Do
# mount -a
while in single user mode and comment entry for "/home4" in /etc/fstab.
Then try to boot normaly (# init 3).
I did not like LSM in version 4.x since it had too many bugs.
When you boot normaly we will see what to do next.
In vino veritas, in VMS cluster
Prashanth Waugh
Esteemed Contributor

Re: booting problem

hi
sorry my Tru64 unix version is SRM v5.7-84 .vi editor is not woking in single user mode. so i cant modify /etc/fstab.also according to your suggestion i tried mount -a command but it is giving following error
cant open /dev/rvol/rootdg/home4 no such device or address.
so pls help me. thanks
For success, attitude is equally as important as ability

Re: booting problem

In single user mode root file system is mounted with read only access hence to modify file you have to mount with read write access. Try this command in single user mode. mount -u /

Re: booting problem

In single user mode root file system is mounted with read only access hence to modify file you have to mount with read write access. Try this command in single user mode. mount -u /
Chandrashekhar
Vladimir Fabecic
Honored Contributor

Re: booting problem

It is OK that you got error message after "mount -a", but root and usr should be mounted and you can edit /etc/fstab.
Of course, you can do:
# mount -u /
# mount /usr
In vino veritas, in VMS cluster
Prashanth Waugh
Esteemed Contributor

Re: booting problem

Thanks Dudharkar sir and Vladimir for ur valuable suggestion.
For success, attitude is equally as important as ability