[comp.unix.questions] mounting multiple drives at root

WEBBG@wsuvm1.csc.wsu.edu ( Geoff Webb) (11/09/90)

Hello all,

I have just installed System V 3.2.2 on my machine (yea! no more DOS!!).
Right now my root file system is sitting on my 65meg drive. I am going
to add another 40meg drive very soon and would like to know if I can set it
up to mount at root. I would rather have one file system of 105meg
then two smaller ones.

Any suggestions or am I trying to do the impossible?

+-------------------------------+---------------------------------------+
| Geoffrey Webb                 |    Internet: webbg@wsuvm1.csc.wsu.edu |
| Systems Analyst               |      Bitnet: webbg@wsuvm1             |
| Washington State University   |     Talknet: (509) 335-5516           |
+-------------------------------+---------------------------------------+

gwyn@smoke.brl.mil (Doug Gwyn) (11/09/90)

In article <24961@adm.BRL.MIL> WEBBG@wsuvm1.csc.wsu.edu ( Geoff Webb) writes:
-Right now my root file system is sitting on my 65meg drive. I am going
-to add another 40meg drive very soon and would like to know if I can set it
-up to mount at root. I would rather have one file system of 105meg
-then two smaller ones.

Normal UNIX systems do not support mounting a file system on a directory
in an "appending" mode, only in a "replacing" mode.  (Plan 9 does.)

However, it shouldn't be a big problem.  Reserve the first 65MB for system
software (and commercial applications) and the 40MB filesystem for user data.

cpcahil@virtech.uucp (Conor P. Cahill) (11/09/90)

In article <24961@adm.BRL.MIL> WEBBG@wsuvm1.csc.wsu.edu ( Geoff Webb) writes:
>
>Hello all,
>
>I have just installed System V 3.2.2 on my machine (yea! no more DOS!!).
>Right now my root file system is sitting on my 65meg drive. I am going
>to add another 40meg drive very soon and would like to know if I can set it
>up to mount at root. I would rather have one file system of 105meg
>then two smaller ones.

In the standard System V R3.2.2 you cannot mount two devices so that
they appear as a single file system.  You can mount the second device
onto a directory on the first filesystem, but you can't make it all 
into one file system.


-- 
Conor P. Cahill            (703)430-9247        Virtual Technologies, Inc.,
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