)   Hardware Troubleshooting, Boot Errors?    The Question is:    N One of our client had a PWS 433au with VMS 7.1-1H2 installed since march 2000.M  it worked ok until 2 days ago. After powering off and on the PWS the re-boot N  was impossible message generated "invalid operating system". it seems that is  battery PB. So we selM ected manualy OPen VMS to Get the SRM Consol, so this was Ok. But the problem N  is the system will not boot on the disk as usua,we got the following message:K  (boot dka200.2.0.1009.0  flags 0,0) block 0 of dka200.2.0.1009.0 is not a   valid boot block. Bootstrap failure  2)	We tried        b fl 0,1        It gives the same error     3)	Boot from CD is OK I 4)	The disk dka200: is mountable, we can access it (when we boot from the   CD), we can make dir etc  J 5)	Ana/disk/rep dka200:  (after boot from the CD) indicated some corrupted  files on our own directory F 6)	Ana/disk/rep dka200: 2nd time generated no error (just Quota.sys no  such file)    0 what I can do to be able to boot from the disk ?        The Answer is :      F   Please contact HP Services or your hardware support organization, asF   there appears to be a hardware malfunction; probably with the NVRAM,D   though that is not a certainty.   There could easily be additionalB   damage to the hardware and/or corruptions to the target storage.   @   You will want to verify all settings of the console, includingF   the time, boot root, operating system setting, and other attributes.C   Additionally, you will want to verify the hardware is functional, 6   including the system and the I/O storage subsystems.   =   The OpenVMS Wizard is not in a position to provide hardware C   diagnostics or hardware troubleshooting; again, please contact HP 1   Services or your hardware support organization.    A   The OpenVMS Wizard will assume you are aware that OpeNVMS Alpha ;   V7.1-1H2 was a limited hardware release, and has not been D   supported for some years; there are a number of subsequent OpenVMS?   releases, and an upgrade to a supported release -- whether to A   a release with Current Version Support or Prior Version Support "   (PVS) -- is strongly encouraged.0  Answer written or last revised on  24-MAR-2004 