fmbutt@ursa-major.spdcc.com (Farooq Butt) (08/23/89)
You have an OS tape. You wish to copy it for safekeeping. You use "dd" but
it doesn't seem to work. What is a good way to duplicate OS release
tapes. Again, I reiterate, this copying is merely for safekeeping as
tapes tend to get chewed up at our site ....
thanks,
fmb
ps: If Sun considers this to be "illegal" please let me know as I tend to
be woefully ignorant in these matters of legality.....
--
NOTHING in the above article has the slightest relationship to reality.
If any reality correspondences are found, please notify me IMMEDIATELY.
Any threats, abuse or stupidity of any kind are purely UNINTENTIONAL.
My employer does not know that I exist and is not responsible for anything.neil@stl.stc.co.uk (Neil Todd) (09/01/89)
In article <1080@brazos.Rice.edu> harvard!cloud9.Stratus.COM!fmbutt@ursa-major.spdcc.com (Farooq Butt) writes:
: X-Sun-Spots-Digest: Volume 8, Issue 106, message 2 of 15
:
: You have an OS tape. You wish to copy it for safekeeping. You use "dd" but
: it doesn't seem to work. What is a good way to duplicate OS release
: tapes. Again, I reiterate, this copying is merely for safekeeping as
: tapes tend to get chewed up at our site ....
Don't forget that there are multiple files on the distribution tape, the
Sun documentation gives your the layout - to use non rewinding tapes for
input and output. Then do a "mt -f /dev/devicename rew" when done.
You should try using the high density tape (/dev/nrst8 if cart, /dev/nrmt8
if tape), and a sensible (small) blocking factor. Continue to use "dd".
Neil Todd | ..In general, it is best to assume that the
PSI%234237100122::neil | network is filled with malevolent entities
neil@gid.co.uk | that will send in packets designed to have
Group-ID Ltd | the worst possible effect...era@ncar.ucar.edu (Ed Arnold) (10/05/89)
In article <1423@brazos.Rice.edu> neil@stl.stc.co.uk (Neil Todd) writes: |X-Sun-Spots-Digest: Volume 8, Issue 119, message 3 of 15 | |In article <1080@brazos.Rice.edu> harvard!cloud9.Stratus.COM!fmbutt@ursa-major.spdcc.com (Farooq Butt) writes: || X-Sun-Spots-Digest: Volume 8, Issue 106, message 2 of 15 || || You have an OS tape. You wish to copy it for safekeeping. You use "dd" but || it doesn't seem to work. What is a good way to duplicate OS release || tapes. Again, I reiterate, this copying is merely for safekeeping as || tapes tend to get chewed up at our site .... | |Don't forget that there are multiple files on the distribution tape, the |Sun documentation gives your the layout - to use non rewinding tapes for |input and output. Then do a "mt -f /dev/devicename rew" when done. | |You should try using the high density tape (/dev/nrst8 if cart, /dev/nrmt8 |if tape), and a sensible (small) blocking factor. Continue to use "dd". Problem is, I never want to use dd when it comes to the unpleasant task of typing all those commands in to duplicate multiple files. That's why I never made copies, until a few weeks ago, when the drive chewed a hole in an important one. Fortunately, somebody wrote a utility that's been floating around in our area, which does the copying automatically. It analyzes the tape and reads the files into the current directory, then when invoked again with an output option, writes a copy of the tape. Email me if you'd like a copy. Ed Arnold * era@ncar.ucar.edu [internet] * era@ncario [bitnet]