Sponsored Content
Operating Systems Solaris Lost Root Password on VXVM Encapsulated Root Disk Post 302604586 by sunnyd76 on Tuesday 6th of March 2012 06:49:03 AM
Old 03-06-2012
Lost Root Password on VXVM Encapsulated Root Disk

Hi All

Hope it's okay to post on this sub-forum, couldn't find a better place

I've got a 480R running solaris 8 with veritas volume manager managing all filesystems, including an encapsulated root disk (I believe the root disk is encapsulated as one of the root mirror disks has an entry under /etc/vx/reconfig.d/disk.d/c1t0d0). The root password has been lost and I need to reset it. I've found what looks like a decent document online that suggests that I need to unencapsulate the root disk prior to changing the shadow entry. Seems risky work for a simple change - i'm hoping there may be a shortcut but heyho otherwise... I'm probably being over cautious Smilie

As the disk is encapsulated, can I just remove one of the disks while the system is live (effectively splitting the mirror), then boot from CD, mount the root FS, edit the shadow directly, boot again and just replace the removed disk? Any idea if the FS would be marked as 'dirty' by vxvm if I did this and not be bootable?

Assuming my finger in the air solution above won't work. Any idea if the document will be okay to run with?

Thanks!
Sunny

Last edited by methyl; 03-06-2012 at 12:31 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Root Password Lost !!!

I've forgotten root password on one of Solaris machines, i searched in forumes to find a similar case but there's no proceudre here to reinintialize root password, cause most of related commands & even single user mode needs root password that i don't have. Any solution would be helpful. --rgrds,... (9 Replies)
Discussion started by: nikk
9 Replies

2. UNIX for Advanced & Expert Users

I lost my password root

Hello ... I lost my password root ! maybe someone can to help me to log in HP_UX, i started the server in " Singel - User" and i changed my password to new password and it`s not working .. what i must to do ??? (4 Replies)
Discussion started by: yanly
4 Replies

3. UNIX for Advanced & Expert Users

Lost Root Password

I have recently become the sys adm guy for our unix systems here for my shop. I have a pretty good understanding of the system, but there is just some stuff that I don't know. Right now one of those things is to recover the password for a unix system. I know that there is a way that you can use... (2 Replies)
Discussion started by: GlockCW
2 Replies

4. Answers to Frequently Asked Questions

Lost root password / Can't login as root

We have quite a few threads about this subject. I have collected some of them and arranged them by the OS which is primarily discussed in the thread. That is because the exact procedure depends on the OS involved. What's more, since you often need to interact with the boot process, the... (0 Replies)
Discussion started by: Perderabo
0 Replies

5. Linux

how to access root priveliges if root password is lost

wish to know how to access root password it root password is forgotten in linux (1 Reply)
Discussion started by: wojtyla
1 Replies

6. UNIX for Dummies Questions & Answers

Root Password Lost

I'm attempting to blank out the root user password on a machine that we have forgotten the password for. I have been using the advice posted on this site to boot from CDROM in single user mode, then mounting the root slice and editing the /etc/shadow file. Each time I save the shadow file and... (1 Reply)
Discussion started by: gonzotonka
1 Replies

7. AIX

lost root password in AIX

Hi how do you reset the root password in AIX. I booted to single user mode and it asked for login and password. I have AIX 4.3. Thanks (4 Replies)
Discussion started by: Welfaric
4 Replies

8. UNIX for Advanced & Expert Users

Help with Lost Root Password

This is a common question im sure... I bought a RS/6000 Model 240. Aix 4.3.3 loaded. No root password was supplied to me, but I do have the install media (4 disks). I want to drop into maint mode. So I place the cd into the drive, restart the box ( by pressing the power button, since i do not have... (3 Replies)
Discussion started by: JoeJohnSmith
3 Replies

9. Solaris

vxvm root disk booting problem - solved with boot -a. How?

Hi All, We had a Sun Netra T1 go down the other day, the root disk was mirrored using vxvm. Upon boot from either disk, we had the following error appear: WARNING: Error writing ufs log state WARNING: ufs log for / changed state to Error WARNING: Please umount(1M) / and run... (4 Replies)
Discussion started by: badoshi
4 Replies

10. Solaris

encapsulated root disk replacement

Hello, I have a Sparc system with encapsulated disks. Because of disk errors I had to replace rootdisk, I did it with vxdiskadm 4) replacement, vxdctl disable/enable, vxdiskadm 5) After it it the system boot failed, dropped back to the ok> prompt, message was: The file... (0 Replies)
Discussion started by: ggi
0 Replies
vxsited(1M)															       vxsited(1M)

NAME
vxsited - site monitoring daemon SYNOPSIS
/etc/vx/bin/vxsited [mail_address...] DESCRIPTION
The vxsited daemon monitors Veritas Volume Manager (VxVM) for disks being attached, and reattaches a detached site if the disks that belong to that site become accessible. vxsited analyzes the output of the vxnotify command, and waits for a failed disk to attach. When a disk is attached, vxsited attempts to online the disk, and tries to reattach the failed site. If a site is successfully reattached, vxsited starts recovery using vxrecover, and sends mail to root (by default) or to other specified users. Mail Notification By default, vxsited sends mail to root with information about the disk status of any attempts to reattach the site. To send mail to other users, add the user login name to the line that starts vxsited in the startup script, /etc/init.d/vxvm-recover, and reboot the system. For example, if the line appears as: nohup vxsited root & and you want mail also to be sent to user1 and user2, change the line to read: nohup vxsited root user1 user2 & Alternatively, kill the vxsite process, and restart it from the command line with the required mail addresses as arguments. The mail notification has a format that is similar to the following: Subject : Volume Manager site reattach on host hostname Reattached site sitename in disk-group diskgroup Reattachment Procedure If a disk from a detached site becomes accessible again, vxsited checks whether the relocation daemon, vxrelocd, is running. If vxrelocd is running, vxsited attempts to reattach the site. The relocation daemon can then try to relocate the failed subdisks using space on the available disks in the disk group. If the failed objects are successfully relocated, vxrelocd changes the state of the site to RECOVER, and starts the recovery of volumes at the site. When all the plexes at a site have been recovered, the plexes are put into the ACTIVE state, and the state of the site is set to ACTIVE. If vxrelocd is not running, vxsited only reattaches a site when all the disks from that site become accessible. After successfully reat- taching a site, vxsited changes the site state to ACTIVE, and initiates recovery using vxrecover. When all the plexes from a site have been recovered, the plexes are put into the ACTIVE state, and the state of the site is set to ACTIVE. vxsited does not attempt to reattach a site that has been explicitly detached by an administrator. The state OFFLINE is set for sites that have been detached by using the following command: vxdg -g dg_name detachsite sitename Disabling vxsited If you do not want a site to be recovered automatically, kill the vxsited daemon, and prevent it from restarting. To kill the daemon, run the following command from the command line, and locate the process table entry for vxsited: ps -ef Execute the command: kill -9 PID Substitute the process ID of the vxsited process for PID. To prevent vxsited from being restarted, comment out the line that starts vxsited in the startup script /sbin/init.d/vxvm-recover. FILES
/sbin/init.d/vxvm-recover The startup file for vxsited. SEE ALSO
kill(1), mailx(1), ps(1), vxdg(1M), vxrelocd(1M), vxintro(1M), vxnotify(1M), vxrecover(1M) VxVM 5.0.31.1 24 Mar 2008 vxsited(1M)
All times are GMT -4. The time now is 10:20 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy