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From: lclarke@questor.wimsey.bc.ca (Lawrence Clarke)
Newsgroups: comp.sys.next
Subject: I found out how to backup to floppies
Message-ID: <25Z7u1w163w@questor.wimsey.bc.ca>
Date: 3 Jan 91 10:56:36 GMT
Organization: Questor: FREE Usenet News/Internet Mail => +1 604 681.0670
Lines: 50

Get a pen folks ... Here's how you can backup the 105 MB Hard Disk on the
new NeXTstation to 1.44 meg floppies

 
1) initialize (format, put a filesystem on) approx 90 1.44 Meg 3 1/2" 
   floppies. After they have a filesystem on them there's about 1.2 Megs 
   free.
 
2) Turn on your NeXTstation and when the "Loading Disk ..." window appears,
   hit the right COMMAND key and the ~ key on the keypad at the same time.
   This puts you into the ROM Monitor. You'll get a NeXT> prompt. Enter
   b sd -s
   This boots from the SCSI disk in single user mode.

3) When you get to the # prompt enter 
   fsck
   This checks that the filesystem is intact on the SCSI drive.

4) then enter the command that does the backup
      (you should label the disks before you backup  1 - 90)
   # dump 0uOf 0.86 /dev/rfd0a /dev/rsd0a

   this command dumps a level 0 full backup
                              u update the /etc/dumpdates file
              CAPITOL O       O specifies the output block size
                              f specifies a device or file

   0.86 is the block size for 1.44 meg floppies with filesystem
/dev/rfd0a is (r) removable (fd0) 1st floppy drive (a) 1st partition
/dev/rsd0a is (r) removable (sd0) 1st SCSI drive   (a) 1st partition
 
Once the SCSI drive is backed up you can use the command
  # restore jixf filename /dev/rfd0a
to restore any files you want.
         j  =  media is ejectable
         i  =  interactive mode (question's asked)
         x  =  extract files
         f  =  specify filename
 
 
If anyone has any other ideas, please respond ...


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