[SunHELP] solaris rescue

[Josh Greenberg]

Jay,

VM encapsulation (in VERY lwo level terms) simply
converts the solaris partitions to veritas volumes,
and offsets the "public region" (writable disk space)
from the superblock so it cant be touched.  When it is
un-encapsulated (for upgrades, etc...), you are simply
moving the original vfstab back and not loading the
kernel modules fro VxVM (vxio, etc..) My point is that
when you boot off CD and mount the raw device, you are
just mounting the block device read/write and VM for
all intents and purposes is out of the picture (as you
are not using the volume manager at this point to
handle the system volumes like you would during a
normal boot of an encapsulated rootdisk.

The rootdisk wasnt converted to Veritas File System,
was it? Were any of the system volumes grown *after*
encapsulation? If they were, you may have some more
issues -- did you have a mirror of the rootdisk?

What kind of I/O errors are you getting?
Some more info may be helpful.

--Josh
--- "Austad, Jay" <austad at marketwatch.com> wrote:
> No backup (I just installed the system and didn't
> get backups going yet,
> luckily, it's not in production yet).  When I try to
> mount the device, I get
> an error that says IO error.  I assume this is
> because the encapsulation
> made an overlay on the volume, right?
> 
> Is there a way to load the veritas modules from the
> volume manager cd to
> make my /dev/vx/ entries appear?
> 
> Jay
> 
> > -----Original Message-----
> > From: Josh Greenberg
> [mailto:mustard_greens at yahoo.com] 
> > Sent: Wednesday, April 03, 2002 1:54 PM
> > To: Austad, Jay; 'sunhelp at sunhelp.org'
> > Subject: RE: [SunHELP] solaris rescue
> > 
> > 
> > Just mount the raw device to /a or something
> > 
> > mount /dev/rdsk/c0t0d0s2 /a or something like
> that.
> > 
> > --Josh
> > 
> > --- "Austad, Jay" <austad at marketwatch.com> wrote:
> > > So, since my rootvol is encapsulated in the
> Veritas
> > > Volume manager, do I
> > > have to load something to be able to mount it?
> > > 
> > > > -----Original Message-----
> > > > From: Humphreys, Colin R
> > > [mailto:Colin.Humphreys at team.telstra.com] 
> > > > Sent: Tuesday, April 02, 2002 5:49 PM
> > > > To: 'Austad, Jay'; 'sunhelp at sunhelp.org'
> > > > Subject: RE: [SunHELP] solaris rescue
> > > > 
> > > > 
> > > > try
> > > > 
> > > > boot cdrom -s
> > > > 
> > > > instead.
> > > > 
> > > > > -----Original Message-----
> > > > > From: Austad, Jay
> > > [mailto:austad at marketwatch.com]
> > > > > Sent: Wednesday, 3 April 2002 8:43 AM
> > > > > To: 'sunhelp at sunhelp.org'
> > > > > Subject: [SunHELP] solaris rescue
> > > > > 
> > > > > 
> > > > > Ok, I made a big mistake.  I moved my /usr
> > > directory to a different
> > > > > partition, and was going to ln -s
> > > /export/home/usr /usr.  
> > > > > Except, now that
> > > > > /usr isn't there, it's hosed.  Booting with
> boot
> > > -s cdrom 
> > > > doesn't work
> > > > > either since it's trying to use my
> filesystem on
> > > disk, I 
> > > > > don't have a shell.
> > > > > And even if I did, all commands look for
> > > /usr/lib/ld.so.1.  
> > > > > 
> > > > > Is there a cd somewhere I can boot that will
> > > give me a full 
> > > > > rescue mode with
> > > > > it's own filesystem?  Then I can just mount
> my
> > > partitions and 
> > > > > perform the
> > > > > actions I need to make /usr appear normally.
> > > > > 
> > > > > Thanks.
> > > > > 
> > > > > Jay
> > > > >
> _______________________________________________
> > > > > SunHELP maillist  -  SunHELP at sunhelp.org
> > > > >
> http://www.sunhelp.org/mailman/listinfo/sunhelp
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> > 
> > 
> > =====
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> greatest 
> > power, The village idiot will come forth to be
> acclaimed the leader." 
> > --Nostradamus
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=====
"Come the millennium, month 12, in the home of greatest power, The village idiot will come forth to be acclaimed the leader." 
--Nostradamus
Yahoo! Tax Center - online filing with TurboTax
http://taxes.yahoo.com/