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Requirement for multiple image reproductions of an existing 230MB Re-Writable Magneto-Optical golden master disk image.
I need a verified way to make multiple image reproductions of an existing 230MB Re-Writable Magneto-Optical golden master disk image.
This Unix based system only has one (1) optical drive and I will need to save this image on the internal HDD and then rebuild this image back onto the blank formatted optical disks as required.
Unix OS --> UNIX_System_V
Version --> 4.0 R40V4.4
The OS is install on a commercial system that is used for industrial applications.
This Unix based system only has one (1) optical drive and I will need to save this image on the internal HDD and then rebuild this image back onto the blank formatted optical disks as required.
Unix OS --> UNIX_System_V
Version --> 4.0 R40V4.4
The OS is install on a commercial system that is used for industrial applications.
ASKER
Here is the problem with using the native unix dd command:
# dd if=/dev/dsk/m187_c0d0s5 of=/home/kermit/easm_004
UX:dd: ERROR: Write error: File too large
32769+0 records in
32768+0 records out
*** Note the Record limit above ***
The image file is constructed per the dd command, but the contents are not a mirror image of the source cartridge.
# ls -alt
total 36580
-rw-rw-rw- 1 root other 16777216 Apr 4 10:52 easm_004
drwxrwxr-x 2 kermit cog 1024 Apr 4 10:51 .
-rw-r----- 1 kermit cog 51658 Nov 8 2005 riv_co_02.WAV
-rw-r----- 1 kermit cog 78058 Nov 8 2005 riv_co_01.WAV
-rw-r----- 1 kermit cog 16100 Sep 29 2005 msg_3480.wav
-rw-r----- 1 kermit cog 480280 May 9 2001 22old.au
-rwxr-xr-x 1 cog cog 748 Jan 23 2001 .profile
drwxrwxrwx 26 root root 1024 Jun 22 2000 ..
-rw------- 1 kermit cog 22 Apr 21 1998 .sh_history
# rm easm_004
# ls -altt
total 1236
drwxrwxr-x 2 kermit cog 1024 Apr 4 10:52 .
-rw-r----- 1 kermit cog 51658 Nov 8 2005 riv_co_02.WAV
-rw-r----- 1 kermit cog 78058 Nov 8 2005 riv_co_01.WAV
-rw-r----- 1 kermit cog 16100 Sep 29 2005 msg_3480.wav
-rw-r----- 1 kermit cog 480280 May 9 2001 22old.au
-rwxr-xr-x 1 cog cog 748 Jan 23 2001 .profile
drwxrwxrwx 26 root root 1024 Jun 22 2000 ..
-rw------- 1 kermit cog 22 Apr 21 1998 .sh_history
There is 32K limit on the number of records to be constructed to the of= destination.
# dd if=/dev/dsk/m187_c0d0s5 of=/home/kermit/easm_004
UX:dd: ERROR: Write error: File too large
32769+0 records in
32768+0 records out
*** Note the Record limit above ***
The image file is constructed per the dd command, but the contents are not a mirror image of the source cartridge.
# ls -alt
total 36580
-rw-rw-rw- 1 root other 16777216 Apr 4 10:52 easm_004
drwxrwxr-x 2 kermit cog 1024 Apr 4 10:51 .
-rw-r----- 1 kermit cog 51658 Nov 8 2005 riv_co_02.WAV
-rw-r----- 1 kermit cog 78058 Nov 8 2005 riv_co_01.WAV
-rw-r----- 1 kermit cog 16100 Sep 29 2005 msg_3480.wav
-rw-r----- 1 kermit cog 480280 May 9 2001 22old.au
-rwxr-xr-x 1 cog cog 748 Jan 23 2001 .profile
drwxrwxrwx 26 root root 1024 Jun 22 2000 ..
-rw------- 1 kermit cog 22 Apr 21 1998 .sh_history
# rm easm_004
# ls -altt
total 1236
drwxrwxr-x 2 kermit cog 1024 Apr 4 10:52 .
-rw-r----- 1 kermit cog 51658 Nov 8 2005 riv_co_02.WAV
-rw-r----- 1 kermit cog 78058 Nov 8 2005 riv_co_01.WAV
-rw-r----- 1 kermit cog 16100 Sep 29 2005 msg_3480.wav
-rw-r----- 1 kermit cog 480280 May 9 2001 22old.au
-rwxr-xr-x 1 cog cog 748 Jan 23 2001 .profile
drwxrwxrwx 26 root root 1024 Jun 22 2000 ..
-rw------- 1 kermit cog 22 Apr 21 1998 .sh_history
There is 32K limit on the number of records to be constructed to the of= destination.
ASKER CERTIFIED SOLUTION
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ASKER
This size of my MO removable cartridge is 230 Meg.
I can get the "dd" command to build the image file on the HDD if I change the blocksize (bs=18k or bs=1440).
This will allow the dd command to complete, but I am still now sure of the contents on the formatted bland MO disk when I use the "dd" command to restore from the HDD --> MO media.
By the way, what is the best way to format a blank MO 230 Meg disk on this version of unix?
Please advise.
I can get the "dd" command to build the image file on the HDD if I change the blocksize (bs=18k or bs=1440).
This will allow the dd command to complete, but I am still now sure of the contents on the formatted bland MO disk when I use the "dd" command to restore from the HDD --> MO media.
By the way, what is the best way to format a blank MO 230 Meg disk on this version of unix?
Please advise.
ASKER
I still am getting write errors attempt to use the dd command to build the images of the 230 Meg MO drives.
Does not the dd command have to be configured to match the physical characterics of the drive itself?
I use the simple command :
# dd if=/dev/dsk/c0t0d1 of=/home/kermit/disk.img bs=18k
This command completes, but I get write errors stating directory or file does not exists.
The file is created, but it is not the same content as the original drive.
Any help will be appreciated.
The find . -print | cpio version may work, but takes a long time to complete for multiple copies.
Does not the dd command have to be configured to match the physical characterics of the drive itself?
I use the simple command :
# dd if=/dev/dsk/c0t0d1 of=/home/kermit/disk.img bs=18k
This command completes, but I get write errors stating directory or file does not exists.
The file is created, but it is not the same content as the original drive.
Any help will be appreciated.
The find . -print | cpio version may work, but takes a long time to complete for multiple copies.
Do you have enough free disk space under home/kermit
for the image file? You try to apply the OS patch to your box to see if it can fix the problem.
otherwise, you "cpio" to make the backup, BTW, Why do you need to do multiple copies? It just waste of your disk space and time!
for the image file? You try to apply the OS patch to your box to see if it can fix the problem.
otherwise, you "cpio" to make the backup, BTW, Why do you need to do multiple copies? It just waste of your disk space and time!
ASKER
I have only 20% used on the /home partition, so /home/kermit has more than enough space.
The need for multiple copies, is the fact that I support over 500 of these old unix servers spread across the country and I like making 230MO disks of all the current application updates for local on site installations.
I could just ftp the apps, then there is a large training curve for the local techs to get the apps installed correctly.....
I know it's old fashion, but it works.
The need for multiple copies, is the fact that I support over 500 of these old unix servers spread across the country and I like making 230MO disks of all the current application updates for local on site installations.
I could just ftp the apps, then there is a large training curve for the local techs to get the apps installed correctly.....
I know it's old fashion, but it works.
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Computer101
EE Admin
Computer101
EE Admin
optical drive into your HD, when you need to restore, use "dd" again.
man dd
to learn more details.