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Operating Systems
Solaris
forgot metaroot command
Post 84912 by Perderabo on Thursday 29th of September 2005 11:30:58 AM
09-29-2005
RTM, I'm not sure that your assumptions are correct. According to the Solstice DiskSuite User's Guide, page 272, if metadevice database replicas cannot be located the system requests the root password to allow maintenance...much like if a manual fsck was needed. cypg describes a system that is looping on reboot. That sounds more like the kernel won't load.
For the record I use slice 3 for my replica databases, not sure why I do.
But anyway, this sentence bothers me: "I make a partition c0t0d0s7 and c0t1d0s7 with 30G each". 30G seems a bit large for a replica database. And this seems to imply that she used format to modify slice layout.
If your assumptions are correct, then your procedure does look good. Two points though... cypg may not be able to implement an instruction like: "This will set you up to hopefully have a system that boots - now all you need to do is recreate the mirrors again (including the metadb info). You will need to find an empty partition and put/allocate some space for the metadb info." But also, if she gets to this point, I would suggest a complete backup before attempting a re-mirror. If she already has a good backup that she trusts, then that's fine. But it seems that users seldom make a good backup prior to major surgery...especially when the surgery fails.
My take is that I would want to understand the disaster much more completely before I would be comfortable suggesting a solution.
For the record I use slice 3 for my replica databases, not sure why I do.
But anyway, this sentence bothers me: "I make a partition c0t0d0s7 and c0t1d0s7 with 30G each". 30G seems a bit large for a replica database. And this seems to imply that she used format to modify slice layout.If your assumptions are correct, then your procedure does look good. Two points though... cypg may not be able to implement an instruction like: "This will set you up to hopefully have a system that boots - now all you need to do is recreate the mirrors again (including the metadb info). You will need to find an empty partition and put/allocate some space for the metadb info." But also, if she gets to this point, I would suggest a complete backup before attempting a re-mirror. If she already has a good backup that she trusts, then that's fine. But it seems that users seldom make a good backup prior to major surgery...especially when the surgery fails.
My take is that I would want to understand the disaster much more completely before I would be comfortable suggesting a solution.
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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)