wongkc@sor.CS.ColoState.Edu (K. C. Wong) (03/16/90)
Well, I just tried booting OS/2 from a floppy. I have
an HPFS C: drive and a FAT D: drive.
Despite the fact that the HPFS driver is loaded (at least
the message comes up), escaping to a command prompt at
the initial screen and typing
[A:\] DIR C:
gives the message:
Incorrect internal file identifier.
Typing, on the other hand,
[A:\] DIR D:
gives a correct listing of the files on that drive.
So the 5 dollar question is, why doesn't OS/2 recognize its own
HPFS partition? The only answers I've seen on the net say,
"It SHOULD recognize the HPFS partition". However, I can vouch
from experience that it doesn't.wongkc@sor.CS.ColoState.Edu (K. C. Wong) (03/17/90)
In article <5349@ccncsu.ColoState.EDU> I write: > Well, I just tried booting OS/2 from a floppy. I have > an HPFS C: drive and a FAT D: drive. > > Despite the fact that the HPFS driver is loaded (at least > the message comes up), escaping to a command prompt at > the initial screen and typing "[A:\] DIR C:" gives the message: > > Incorrect internal file identifier. > Well, I discovered later that a good, cold boot awakens HPFS from its apparent grogginess and DIR C: works just fine. (I should've thought of that sooner, but it was late and I was a little groggy myself, which was how I got myself into the necessity to reboot from a floppy). No number of warm boots seemed to have worked though. I'd still be interested if someone can tell me just what got corrupted that Ctrl+Alt+Del wouldn't cure and that would cause the error message above.
alistair@microsoft.UUCP (Alistair BANKS) (03/19/90)
Warm boot should have done as it did (Ctl-Alt-Del)! Its the close-down method you must be careful of. HPFS has a 'clean' marker - HPFS starts 'clean', and is then 'dirty' until closed down with the system shutdown command - so Ctl-Alt-Del leaves it dirty as does hitting the big red switch. On restarting a 'dirty' HPFS you can run chkdsk against it, which will then set the clean bit, and the HPFS will be readable again. Alistair Banks OS/2 Group Microsoft.
ballard@cheddar.cc.ubc.ca (Alan Ballard) (03/20/90)
In article <53618@microsoft.UUCP> alistair@microsoft.UUCP (Alistair BANKS) writes: >... - so Ctl-Alt-Del leaves >it dirty as does hitting the big red switch. > It's my understanding that OS/2 intercepts Ctl-Alt-Del so that the file system is clean if you reboot that way. Is that not so? I'm pretty sure I've rebooted that way without ending up with a dirty file system. Alan Ballard | Internet: Alan_Ballard@mtsg.ubc.ca University Computing Services | Bitnet: USERAB1@UBCMTSG University of British Columbia | Phone: 604-228-3074 Vancouver B.C. Canada V6R 1W5 | Fax: 604-228-5116
markha@microsoft.UUCP (Mark HAHN) (03/20/90)
I just want to make sure this is clear: control-alt-del on a running system will shut down HPFS cleanly, though application state is lost. -- Mark Hahn microsof!markha@uunet.uu.net uunet!microsof!markha I don't speak for Microsoft.
sean@mercury.sybase.com (Sean Fitts) (03/22/90)
In article <7231@ubc-cs.UUCP> ballard@cheddar.cc.ubc.ca (Alan Ballard) writes: > >It's my understanding that OS/2 intercepts Ctl-Alt-Del so that the file >system is clean if you reboot that way. Is that not so? I'm pretty sure >I've rebooted that way without ending up with a dirty file system. > > >Alan Ballard | Internet: Alan_Ballard@mtsg.ubc.ca >University Computing Services | Bitnet: USERAB1@UBCMTSG >University of British Columbia | Phone: 604-228-3074 >Vancouver B.C. Canada V6R 1W5 | Fax: 604-228-5116 You understand correctly. HPFS gets control after a CRT-ALT-DEL and does, in fact, clean up after itself. -Sean ========================================================================= Sean Fitts / Sybase / 6475 Christie Ave. / Emeryville, CA 94608 sean@mercury.sybase.com -or- {mtxinu,pacbell,sun,pyramid}!sybase!sean "As you probably already know, the opinions are mine and not Sybase's" "Character is what you are in the dark." ========================================================================