unix dump: dumped twice to same dumpfile; restore if file displays only last dump

unix dump: dumped twice to same dumpfile; restore if file displays only last dump

Post by gaius.petroni » Fri, 23 Nov 2001 17:29:13




-rw-r--r--    1 root     root     554221568 Nov 22 16:07 /mnt/cc/cc

restore > ls
.:
System.map              grub/                   map
System.map-2.4.8-26mdk  kernel.h                message
boot.0300               kernel.h-2.4.8          os2_d.b
boot.b                  lilo                    us.klt
chain.b                 lilo-graphic/           vmlinuz
config                  lilo-menu/              vmlinuz-2.4.8-26mdk
config-2.4.8-26mdk      lilo-text/

That's a mighty big filesize for /boot which i know to be 23 MB.
So i must assume that the first dump (of / ) is still there.
But restore only lets me see the latest dump (on top of that "layer")

Anyone ever encounter this and recover the first dump?

cave jabberwockum

 
 
 

unix dump: dumped twice to same dumpfile; restore if file displays only last dump

Post by Doug Freyubrg » Sun, 25 Nov 2001 03:04:11



> Anyone ever encounter this and recover the first dump?

If you dump to a file in th efilesystem, and then dump again to the same
file in the filesystem, the second dump will overwrite the first dump.
You will have no chance of recovering the first dump.

If you want to keep both, dump to different files, or dump to a norewind
tape device.

 
 
 

1. Help with dump/restore ("Tape is not a dump tape")

Hi,

I have performed dump of several partitions on a type in a Mammoth
drive. Then I tried to look at them by "restore", and I could access the
first partition. After that I ran "restore" once again, and I expected
that I would see the list of the files in the second partition. Instead,
all I got was the message "Tape is not a dump tape". When I ran "mt
status", it showed that I still am at the file 0. I also could not
advance by "mt fsf" - it exits immediately, and the status is the same.

I tried to backup two small directories, and I had no trouble restoring
them later. But when I backup whole partitions, I keep getting this
error.

I have Redhat 6.1.

Any ideas what's going on?

Thanks,
Simon
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