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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
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
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
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
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..
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LEARN ABOUT DEBIAN
install-solaris
install-solaris(1M) install-solaris(1M) NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)