06-09-2016
Don't forget that disk block order doesn't necessarily match file sector/chunk/block order. So, spotting file positions might become a problem.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I tried to build a 1.3 TB volume with disk suite, and recieved an error (don't remember the exact verbage, it was very late). It only built a 1 TB volume. newfs completed without error. I rebuilt the volume to be just under 1TB, and all was fine. Is there a limitation with disk suite, or ufs, that... (3 Replies)
Discussion started by: 98_1LE
3 Replies
2. Solaris
Hello all,
I have a laptop with a FAT32 files system, and I want to convert to UFS (unix file system) to install Solaris 10.
somebody knows the way to do that?:confused:
Please help
Thank you! (4 Replies)
Discussion started by: Geller
4 Replies
3. Solaris
I ;ve an application which has does not support zfs and i 've a 100Gb Lun with zfs on it , how to go back to ufs .. and use SVM for the same ? (2 Replies)
Discussion started by: fugitive
2 Replies
4. Shell Programming and Scripting
I have a file like the one below. Each record is separated with >
In between I have lines consisting of 3 numeric values separated by a space.
I need to take each block between the > sign and read the first number in the line.
Then take the first after the > sign and the last before the >... (7 Replies)
Discussion started by: kristinu
7 Replies
5. UNIX for Dummies Questions & Answers
I'm Unix. I'm looking at "df" on Unix now and below is an example. It's lists the filesystems out in 512-blocks, I need this in 4k blocks. Is there a way to do this in Unix or do I manually convert and how?
So for container 1 there is 7,340,032 in size in 512-blocks. What would the 4k block be... (2 Replies)
Discussion started by: rockycj
2 Replies
6. Shell Programming and Scripting
Hello,
I have a file like this:
FILE.TXT:
(define argc :: int)
(assert ( > argc 1))
(assert ( = argc 1))
<check>
#
(define c :: float)
(assert ( > c 0))
(assert ( = c 0))
<check>
#
now, i want to separate each block('#' is the delimeter), make them separate files, and then send them as... (5 Replies)
Discussion started by: paramad
5 Replies
7. Shell Programming and Scripting
Hello everyone!
I'm having some problems trying to translate a text file.
I've found some TR and SED commands but doesnt work exactly as I need.
The point is:
1. Replace all the letters with accent of a text file, like this: Ã>A Á>A Õ>o
2. Replace all the special characters with a... (3 Replies)
Discussion started by: ulysses2703
3 Replies
8. Shell Programming and Scripting
Hello,
Searched for a while and found some "line-to-column" script. My case is similar but with multiple fields each row:
S02 Length Per
S02 7043 3.864
S02 54477 29.89
S02 104841 57.52
S03 Length Per
S03 1150 0.835
S03 1321 0.96
S03 ... (9 Replies)
Discussion started by: yifangt
9 Replies
9. Shell Programming and Scripting
Hello,
I have an input file contaning following data:
< 12345;5454;77;qwert< yuyuy;ruwuriwru> yyyw;
> 35353;68686;424242;hrjwhrwrwy< dgdgd;
I have first character as '<' or '>'and after that one space is their in each line
I just want to replace 1st space encountered after < or >... (3 Replies)
Discussion started by: abhi001cse
3 Replies
10. Solaris
I need to increase the /var (UFS) filesystem and root disk under veritas control or root disk is encapsulated
# df -k /var
Filesystem kbytes used avail capacity Mounted on
/dev/vx/dsk/var 13241195 12475897 674524 96% /var
# fstyp /dev/vx/dsk/var
ufs
# pkginfo... (1 Reply)
Discussion started by: amity
1 Replies
LEARN ABOUT FREEBSD
bwrite
BREAD(3) BSD Library Functions Manual BREAD(3)
NAME
bread, bwrite -- read and write blocks of a UFS file system
LIBRARY
UFS File System Access Library (libufs, -lufs)
SYNOPSIS
#include <sys/param.h>
#include <sys/mount.h>
#include <ufs/ufs/ufsmount.h>
#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>
#include <libufs.h>
ssize_t
bread(struct uufsd *disk, ufs2_daddr_t blockno, void *data, size_t size);
ssize_t
bwrite(struct uufsd *disk, ufs2_daddr_t blockno, const void *data, size_t size);
int
berase(struct uufsd *disk, ufs2_daddr_t blockno, ufs2_daddr_t size);
DESCRIPTION
The bread(), bwrite() and berase() functions provide a block read, write and erase API for libufs(3) consumers. They operate on a userland
UFS disk structure, and perform the read and write at a given block address, which uses the current d_bsize value of the structure.
RETURN VALUES
The bread() and bwrite() functions return the amount read or written, or -1 in case of any error, including short read.
The berase() function returns non-zero on error.
ERRORS
The function bread() may fail and set errno for any of the errors specified for the library functions ufs_disk_write(3) or pread(2).
The function bwrite() may fail and set errno for any of the errors specified for the library function pwrite(2).
The function berase() may fail and set errno for any of the errors specified for the library function ioctl(2).
Additionally all three functions may follow the libufs(3) error methodologies in situations where the amount of data written is not equal to
the amount requested, or in case of a device error.
SEE ALSO
libufs(3), ufs_disk_write(3)
HISTORY
These functions first appeared as part of libufs(3) in FreeBSD 5.0.
AUTHORS
Juli Mallett <jmallett@FreeBSD.org>
BSD
June 4, 2003 BSD