3B2 Horror story - will it ever run?

Art Gentry rag at genco.bungi.com
Sat Feb 9 16:38:19 AEST 1991


In article <44022 at nigel.ee.udel.edu> almquist at cis.udel.edu (Squish) writes:
>From: "Bradley E. Smith" <brad at bradley.bradley.edu>
>>Reboot the diskette and instead of 1,2,3 type 'magic mode'. Then select
>>the 'shell' option.  This will give you shell access on the floppy.
>>you then might be able to mount your root device and edit the password
>>file.
>
>WOW!  Att machines are certainly off the beaten track.  You won't find these
>funny (or fun?) modes on a Vax or Sun.  Anyways, I go into 'magic mode' and
>then select the 'shell' option.  Hurray!  I've got the root prompt it worked.
>Could it be my lucky day?  NO!  Nothing exciting is on the 1st disc.  No,
>mount, tar, dd, nothing.  Can anyone send me a bootable disc with mount on it.
>OR, is there someway that I can copy the contents of one of the other discs
>onto the current boot disc with only one disc drive?  This is starting to get
>frustrating )-:  

You need to do a few more things to get where you want to be.

1) do a fsck on root
   /etc/fsck -y /dev/dsk/0s1
2) mount root
   /etc/mount /dev/dsk/0s1 /mnt
3) cd to the hard disc root
   cd /mnt
4) if you want - set your path to reflect the current environment
   PATH=/mnt/bin:/mnt/usr/bin:/mnt/etc:/mnt/usr/lib
   export PATH
5) now you can get to all the files on your hard disc, but remember
   that your 'root' file system is really one level down, 
   ie. / = /mnt
6) do whatever you need to do (ie. edit /mnt/etc/passwd) and then
   unmount the disc
   cd /
   /etc/umount /dev/dsk/0s1
7) sync the disc tables
   sync;sync;sync
8) reboot
   uadmin 2 0

All should be again well with the world, with the exception of the
Middle East.

>Also, I got no responses about the types of tapes I can buy
>for my tape drive. 

Don't know what your original question was, so am making an assumption
that you have a "standard" scsi 60meg tape drive, in which case, I have
had excellent success using 3M DC600HC tapes in mine.

|   R. Arthur Gentry  --  Gentry & Associates -- Excelsior Springs, MO    |
| gentry at genco.bungi.com    uunet!daver!kcdev!genco!gentry   816-637-2443 |
|Computer Consultants specializing in UNIX system admin, mgmt and security|
|               I am the boss - so my opinions DO count!                  |



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