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тАО12-18-2006 03:33 AM
тАО12-18-2006 03:33 AM
Re: IA64 VMS 8.3 Boot DVD
$ mount/for dqa0:
$ copy dqa0: disk:[dir]dvd.dsk
Burn the file dvd.dsk
Eberhard
Other tools are avail. for that task:
cdrtools (readcd) and dvdwrite (copy&verify)
e.
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тАО12-18-2006 09:29 AM
тАО12-18-2006 09:29 AM
Re: IA64 VMS 8.3 Boot DVD
Note: If you make a BACKUP/IMAGE of this LD or DVD then BACKUP ignores the BADBLOCK area. Hence you cannot use this to produce another bootable DVD right away because you 'lost' the boot partition.
/Guenther
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тАО12-18-2006 09:34 AM
тАО12-18-2006 09:34 AM
Re: IA64 VMS 8.3 Boot DVD
/Guenther
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тАО12-19-2006 12:30 AM
тАО12-19-2006 12:30 AM
Re: IA64 VMS 8.3 Boot DVD
I just did a comparison between a standard Openvms DVD and the DVD I burned:
Standard OpenVMS:
ITA1:SYSTEM> setboot -s -f dqa0:
OpenVMS SETBOOT version V5.2-3
Boot Architecture : IA-64
Boot Address : 0x0018ae2c : 000001617452
Boot Size : 0x00001f40 : 000000008000
Boot Relative Offset : 0x00000002 : 000000000002
Master Boot Record : Legacy MBR
Home Grown DVD:
SJON01:SYSTEM> setboot -s -f $1$LDA100:
OpenVMS SETBOOT version V5.2-3
Boot Architecture : IA-64
Boot Address : 0x001b6148 : 000001794376
Boot Size : 0x0000fa00 : 000000064000
Boot Identifier GUID : C12A7328F81F11D2BA4B00A0C93EC93B
Boot Signature GUID : 07E4000400AA7BBB11DB8F60941729E1
Boot Relative Offset : 0x00000001 : 000000000001
Diagnostics Address : 0x000238a5 : 000000145573
Diagnostics Size : 0x000249f0 : 000000150000
Diagnostics Identifier GUID : E2A1E72832E311D6A6827B03A0000000
Diagnostics Signature GUID : 07E4000400AA7CBB11DB8F60941729E0
Diagnostics Relative Offset : 0x00000004 : 000000000004
Master Boot Record : Protective MBR
So there is some difference in the master boot record..
I will have to look further.. for it.
gr,
Robert.
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тАО12-19-2006 04:07 AM
тАО12-19-2006 04:07 AM
Re: IA64 VMS 8.3 Boot DVD
you are looking with setboot at the VMS known boot information. The real think on the bootable VMS DVD is in the 'badblocks' on the DVD which setboot doesn't look at. The VMS 'visible' boot information on the DVD is set to 'legacy' boot block which uses LBN 0 only. The setboot program uses the GPT
(Global Partition Table) style which uses a VMS visible file [000000]GPT.SYS to cover the partition areas inclusive the boot partition. In both cases (legacy and GPT) the boot partition points to a file system covered by SYS$LOADABLE_IMAGES:SYS$EFI.SYS. This is not the problem when creating a bootable DVD.
/Guenther
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тАО01-09-2007 11:00 PM
тАО01-09-2007 11:00 PM
Re: IA64 VMS 8.3 Boot DVD
greetings alfred
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тАО01-10-2007 12:03 AM
тАО01-10-2007 12:03 AM
Re: IA64 VMS 8.3 Boot DVD
I made a call within HP to get an answer. I will update it if I have a solution. (or not)
greetings,
Robert Verkerk
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тАО01-14-2007 11:45 PM
тАО01-14-2007 11:45 PM
Re: IA64 VMS 8.3 Boot DVD
This is the answer form HP:
From my experience, it seems a bootable DVD can be made if GPT is not used.
I use one of the following commands.
$ initialize /nogpt /cluster_size=4 lda
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тАО01-14-2007 11:48 PM
тАО01-14-2007 11:48 PM
Re: IA64 VMS 8.3 Boot DVD
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тАО01-17-2007 05:39 PM
тАО01-17-2007 05:39 PM
Re: IA64 VMS 8.3 Boot DVD
Key is to follow the sequence from that Ask The Wizard topic 9820 exactly as written -- that's the sequence that was used for testing.
I added an error check for a mis-located GPT file and several other errors into setboot in V8.3. Prior to that, a mis-located GPT.SYS was capable of causing behaviour such as you have reported here.
If you find your disks are not booting with a GPT.SYS present, then it is probably a mis-located GPT (the MBR and GPT structures exist underneath the [000000]GPT.SYS file), and older (pre-V8.2) versions of BACKUP can easily produce these files.
There's a setboot option (SET BOOTBLOCK/MBR, IIRC) and a lower-level foreign-command option to force use of the MBR. The keyword is -m, IIRC. This disables the GPT path, and use of GPT.SYS. (If you do NOT have GPT.SYS, setboot automatically selects the MBR path.)
There are a bunch of qualifiers on SET BOOTBLOCK you can find with the Freeware VERB utility, and the help text at the setboot foreign command lists most everything at that level.
You can confirm location of [000000]GPT.SYS with a DUMP/HEADER. You should see exactly two extents, one at the front of the disk and one at the back. If you don't, then GPT.SYS is not correctly located on the target disk.
EFI uses the native sector size for its sector offsets, which is why you will see a factor of four difference between a disk-based bootstrap and a DVD-based bootstrap, and why you need to use either the /block_size=2048 qualifier, or the -2 on the foreign command, or the specification on the prompting-mode invoked by RUN.
The OpenVMS bootable DVD uses the El Torito bootstrap structures, and not the MBR or MBR/GPT bootstrap that's discussed here. El Torito is a variation of ISO-9660 that embeds the boot partition information into the ISO-9660 structures. If you want to create one of these, this is what Guenther is likely recalling -- using the bad block mechanism on INITIALIZE is one of the ways to deal with this, and to reserve the storage. (That step is not needed for MBR and for MBR/GPT bootstrap operations.)
There are tools in SYS$ETC: to copy block ranges, compare disks, and other such. See the CDDVD$TOOLS.CLD file.
DVD creation using programmed I/O is quite slow, and this is the speed enforced by the driver; the IDE I/O bus hardware and DQDRIVER stack on most OpenVMS systems is not anywhere near as speedy as most anyone would want. PCs and Macs will have hardware that will record significantly faster. Somewhat surprisingly, even USB 1.1 can be faster.
I'm posting up directions for creating CD and DVD media on OpenVMS over at the HoffmanLabs site. Contact me off-line if you'd like a review copy of the material.
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