boot from tape in case of emergency

boot from tape in case of emergency

Post by Thoma » Fri, 13 Sep 2002 03:25:32



Hello,

are there any tools avaible to create an emerceny tape for linux like in
HP-UX.

Thanks for your help.

Thomas

 
 
 

boot from tape in case of emergency

Post by Kevi » Fri, 13 Sep 2002 09:16:50




> Hello,

> are there any tools avaible to create an emerceny tape for linux like in
> HP-UX.

Look at Mondo/Mindi at http://www.microwerks.net
and look at BRU/CRU at http://www.tolisgroup.com

Of course, your tape drive and BIOS must support booting from
tape in the first place.

G'luck....

--
Unless otherwise noted, the statements herein reflect my personal
opinions and not those of any organization with which I may be affiliated.

 
 
 

boot from tape in case of emergency

Post by Dances With Crow » Fri, 13 Sep 2002 09:26:39


On Wed, 11 Sep 2002 20:25:32 +0200, Thomas staggered into the Black Sun
and said:

Quote:> are there any tools avaible to create an emerceny tape for linux like in
> HP-UX.

Booting is totally dependent on the architecture of the machine and a
few other factors besides.  The first thing you need to do is to say
which architecture you're talking about--x86, PPC, Alpha, MIPS, PA-RISC,
Sparc, something else?

I have never heard of an x86 that can boot from a tape drive.  Tapes are
character devices, the x86 BIOS is small and stupid and can't really
comprehend anything but a floppy or an IDE disk.  x86 machines typically
boot from CD-ROM using the El Torito floppy emulation hack, and SCSI
cards all have special firmware that provides the BIOS with enough
real-mode access to the SCSI drive to get a bootloader and kernel image
read in.

Can your machine boot from CD-ROM?  That's probably a better alternative
since making a bootable CD-ROM is reasonably easy, and most things can
boot from a CD-ROM.  You should also post this message in a NG devoted
to Linux on your particular architecture, like comp.os.linux.alpha .

--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin /
http://www.brainbench.com     /  "He is a rhythmic movement of the
-----------------------------/    penguins, is Tux." --MegaHAL

 
 
 

1. Emergency: DDS-3 tape output can NOT read on DDS-4 driver !!!

we just purchase a IBM Pseries computer.  This new computer has AIX 4.3.3
and DDS-4 tape driver installed.  I am doing the migration work from old  
server to Pseries.  The old server has AIX 4.3.3 and DDS-3 tape driver    
installed.  I "tar file" used DDS-3 cartridge (125) and bring this tape  
cartridge to DDS-4 tape driver.  when I type "tar tvf /dev/rmt0" following
message come out:

    tar: 0511-193 an error occurred while read from the media
    the media surface is damaged

The DDS-4 flash light will be ON and "errpt -a" show "tape dirty head".  I
have been replace several tape cartridges (brand new) and still the
same.  the tape setup parameter are:

                   DDS-3                                DDS-4
                 --------------                      -----------
Block size         1024                               1024
density #1         37                                  38
density #2         36                                  37
data compression   yes                                yes

I have been tried following  setup still make NO difference:

1. change DDS-4 "density #1" to 37 and "density #2" to 36.

2. set "block size " to 0 on both DDS tape.  In this case NO message come
out and you can see DDS-4 tape driver continue read tape cartridge, but  
nothing show up.

Can anyone help me on this?

Thanks.

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