pjh@mccc.UUCP (peter j holsberg) (02/23/89)
If I run a mkfs on an existing file system (just to increase the number of inodes), will I be wiping out the files in the system? If so, is it necessary to reformat before using mkfs? Thanks, Pete
pjh@mccc.UUCP (Pete Holsberg) (02/23/89)
Sorry about forgetting my .signature!
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Pete Holsberg UUCP: {...!rutgers!}princeton!mccc!pjh
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Trenton, NJ 08690 Voice: 1-609-586-4800john@polyof.UUCP ( John Buck ) (02/24/89)
In article <617@mccc.UUCP>, pjh@mccc.UUCP (peter j holsberg) writes: > If I run a mkfs on an existing file system (just to increase the number > of inodes), will I be wiping out the files in the system? YES!!! Please back-up your entire file-system BEFORE running mkfs on it. "mkfs" will zero any inodes there are currently on the disk, and will extend the the inode table into space previously used for file data. > If so, is it necessary to reformat before using mkfs? > Pete You do not have to reformat your hard disk. Please be sure you specify the correct filesystem size when using the mkfs command! On some 3B systems, most notable 3b15's, the system has no concept as to where the file system physically ends on the disk (All fileystems "end" with the last cylinder on the disk). If you give it a size bigger than the filesystem should be, it will go right ahead and scribble over the NEXT filesystem on the disk. "mkfs" is a command that should be used with great care; be careful. john@polyof.poly.edu
pag@tcsc3b2.UUCP (Philip A. Gross) (03/02/89)
In article <617@mccc.UUCP>, pjh@mccc.UUCP (peter j holsberg) writes: > > If I run a mkfs on an existing file system (just to increase the number > of inodes), will I be wiping out the files in the system? > By all means yes it will. When it finishes the partition will be squeaky clean!!! Remember to remake the lost+found directory with the /usr/lbin/mklost+found command in order to assure that an adequate number of blocks/inodes have been set aside in the event of a crash. > If so, is it necessary to reformat before using mkfs? > In short, no. ===================================+=========================================== Philip A. Gross |INTERNET: pag%tcsc3b2@wb3ffv.ampr.org The Computer Solution Co., Inc. |USENET: ...!wb3ffv!tcsc3b2!pag 1009 Sycamore Square, P.O. Box 716 |UUCP: tcsc3b2!pag (804)794-1514 Midlothian, VA 23113-0716 |ATTMAIL: attmail!tcsc3b2!pag Voice: (804)794-3491 | The opinions expressed here are strictly mine and nobody elses. << I haven't heard what I have to say about that yet. >> :-)