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- From: knobi@knobi.munich.sgi.com (Martin Knoblauch)
- Newsgroups: comp.sys.sgi.admin
- Subject: Re: Forgotten root password
- Message-ID: <1h7ht0INNdol@fido.asd.sgi.com>
- Date: 22 Dec 92 17:05:36 GMT
- References: <9949@fs3.cam.nist.gov> <1h7chsINNapi@fido.asd.sgi.com>
- Organization: Silicon Graphics, Inc.
- Lines: 78
- NNTP-Posting-Host: knobi.munich.sgi.com
-
- In article <1h7chsINNapi@fido.asd.sgi.com>, knobi@knobi.munich.sgi.com
- (Martin Knoblauch) writes:
- |> In article <9949@fs3.cam.nist.gov>, blue@cam.nist.gov
- |> (Jim_Blue_x3809)
- |> writes:
- |> |> On my 4D25, 4.0.5, how do I recover if I forget the root
- |> password?
- |> |> Is recovery different on the Indigo that I am ordering to replace
- |> |> it?
- |>
- |> My favourite solution (in case you can log in into a non-
- |> root account):
- |>
- |> a) cp /etc/passwd /tmp/passwd
- |> b) remove root passwd from /tmp/passwd using your
- |> favourite editor
- |> c) bring system into single user mode. You might have to reset
- |> the system for that. In the PROM monitor "setenv initstate s"
- |> and "auto" boot.
- |> d) In single user mode, copy /tmp/passwd into /etc/passwd. Bring
- |> system into multi user state and set a new root password.
- |> e) Don't forget the new password.
- |>
- |> If the procedure does not work, because you have no open/known
- |> account, you have to reset the system, bring it into single user
- |> and try to generate a password file with a open root account. You
- |> can try to do:
- |>
- |> cat >>/etc/passwd
- |> root1::0:0:Super-User:/:/bin/csh
- |> ^D
- |>
- |> then go multiuser, log in as root1, set a new password for root,
- |> remove root1 for security reasons and continue with e) from above.
- |> Do a few sync's before you reset the system in order to minimize
- |> the risk of disc corruption during that procedure.
- |>
- |> On an Indigo the procedure is identical. The only problem is that
- |> you can set and forget a ROOT password also. If you forget both
- ^^^^
- I wanted to say PROM. Sorry.
-
- |> passwords, things get messy and you should contact your support
- |> office to avoid destroying your hardware and warranty.
- |>
- |>
- |> Hope this helps
- |> Martin
- |> --
- |>
- +---------------------------------+----------------------------------+
- |> |Martin Knoblauch | Silicon Graphics GmbH
- |> |
- |> |Application Support | Am Hochacker 3 - Technopark
- |> |
- |> |Silicon Graphics Computer Systems| W-8011 Grasbrunn-Neukeferloh,
- |> FRG|
- |> | | Phone: (+int) 89 46108-179 or -0
- |> |
- |> | | Fax: (+int) 89 46108-222
- |> |
- |>
- +---------------------------------+----------------------------------+
- |> |Network: <knobi@sgi.com> | V-Mail: 8935 | M/S: IMU-315
- |> |
- |>
- +--------------------------------------------------------------------+
-
- --
- +---------------------------------+----------------------------------+
- |Martin Knoblauch | Silicon Graphics GmbH |
- |Application Support | Am Hochacker 3 - Technopark |
- |Silicon Graphics Computer Systems| W-8011 Grasbrunn-Neukeferloh, FRG|
- | | Phone: (+int) 89 46108-179 or -0 |
- | | Fax: (+int) 89 46108-222 |
- +---------------------------------+----------------------------------+
- |Network: <knobi@sgi.com> | V-Mail: 8935 | M/S: IMU-315 |
- +--------------------------------------------------------------------+
-