HP UX can't boot

[Wissam Elassal]

Hello ,
I am running an HP UX 11.23, that does not boot, since my /dev/root file is corrupted, (but I have a copy of it named /dev/root1). While booting, the system prompts the msg "cannot open /dev/root: no such device or address". I wd like to know if there is a way to make the system boot.

Thank you

[skt_skt]

try booting in LVM maintenance mode and perform fcsk on root file systems..

[Aneesh Mohan]

While booting..interrupt the autoboot and do the below steps.

ISL>hpux -lm -is

#fsck -F vxfs -o full /dev/vg00/rlvol3


If its not getting resolve please do restore the OS using ignite recovery image ( hopes u may have ignite recovery image )


Thanks ,

Aneesh

[whiteknight]

Wissam,

try to boot up using lvm maintainence mode, or boot up using recovery CD?

WK

[tkc]

this should be an itanium server. at the efi shell, try booting from the shell, e.g.

fs2:\>hpux

Then you will get the HPUX prompt.
Other boot options available :

HPUX> boot -is for single user mode
HPUX> boot -lq for LVM quorum mode
HPUX> boot -lm for maintenance mode boot
HPUX> boot -tm for failsave mode (no DLKMs etc,)
HPUX> boot backup for booting backup kernel configuration
HPUX> boot vmunix.prev for booting previous kernel

[Wissam Elassal]

Thanks you, I have tried all the proposed boot option but at the end, the keyboard seems to be not recognized, after kernel starts booting.
Well, i also don't have a recovery CD.
I know that if I can get into my hard drive and rename my bckup file from dev/root1 to dev/root my problem will be solved.

[lawrenzo]

wissam,

when you say you have /dev/root1 saved what do you mean?

is this just a directory or another filesystem containing /dev/root1?

what caused the server not to boot? where you performing some reconfiguration?

Thanks

Chris

[Aneesh Mohan]

Hi,

>I know that if I can get into my hard drive and rename my bckup file from dev/root1 to dev/root my problem will be solved

I think the below steps may help you to accomplish the above requirement.

Installed your problem root disk on other unix machine

Do the below steps on 2nd unix machine ,where u have installed the root disk of 1st
#mkdir /dev/vgtest
#mknod /dev/vgtest/group c 64 0x080000
#vgimport -v /dev/vgtest /dev/dsk/cxtyd0
#vgchange -a y vgtest
#mkdir /test
#mount /dev/vgtest/lvol3 /test

Do the changes


# vgchange -a n vgtest
#vgexport vgtest


Aneesh

[Wissam Elassal]

/dev/root is in fact a file. I remember that i have changed its name by mistake so now unix is not able to find it at boot

[Wissam Elassal]

Now, can we consider another alternative, I have another HP-UX server that is more or less similar that the one that crashed. Is there a way to create a recovery DVD from the first server and use it to recover system files of the second? Is it possible and if yes how can generate the CD ?

Thank you

[Wissam Elassal]

I also have an ignite recovery tape for my production server, can I use it to recover my demo sever which is similar? if yes, the question in my mind is, will I have all me installed softwares and data back after a successful recovery, in other words i would like to recover only the corrupted files in my server ?

Thank you very much

[SGUX]

can't you try to boot this server with the core-OS-DVD and boot in Recovery Mode and then try to fix the problem ?
You won't lose installed software then. You build a new kernel and boot the server. After this you can restore from backup.

[Wissam Elassal]

Hi,
So it is not possible to restore my system files without loosing my installed softwares using an IGNITE recovery tape?