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Top Forums UNIX for Dummies Questions & Answers Directory Inode Number Not Unique Post 72585 by nj302 on Sunday 22nd of May 2005 10:47:33 AM
Old 05-22-2005
how to get directory path and name, file path and name from inode

/, /usr/, /var are different physical filesystems. Is it why inode number can be the same across them?...

The reason I am asking all these questions is that I want to find out if there is a way, through inode number (inode.st_ino), I can fnd out file directory path, and file name, or directory path and directory name? Any system functions that I can call to find out? Thank s a lot.

Code:
rose-qwang{1} df -k
Filesystem            kbytes    used   avail capacity  Mounted on
/dev/dsk/c0t0d0s0     943718  703028  184067    80%    /
/devices                   0       0       0     0%    /devices
/dev/dsk/c0t0d0s6    5040814 3163874 1826532    64%    /usr
proc                       0       0       0     0%    /proc
mnttab                     0       0       0     0%    /etc/mnttab
fd                         0       0       0     0%    /dev/fd
/dev/dsk/c0t0d0s1    1984564  322282 1602746    17%    /var
swap                 3339016      88 3338928     1%    /var/run
swap                 3339936    1008 3338928     1%    /tmp
/dev/dsk/c0t0d0s5    4737456 3429900 1260182    74%    /opt
/dev/dsk/c0t1d0s0    35009161 8089514 26569556    24%    /usr2
/dev/dsk/c0t0d0s7    20160418 4535470 15423344    23%    /export/home
rose-qwang{2} cat /etc/vfstab
#device         device          mount           FS      fsck    mount   mount
#to mount       to fsck         point           type    pass    at boot options
#
fd      -       /dev/fd fd      -       no      -
/proc   -       /proc   proc    -       no      -
/dev/dsk/c0t0d0s3       -       -       swap    -       no      -
/dev/dsk/c0t0d0s0       /dev/rdsk/c0t0d0s0      /       ufs     1       no -
/dev/dsk/c0t0d0s6       /dev/rdsk/c0t0d0s6      /usr    ufs     1       no -
/dev/dsk/c0t0d0s1       /dev/rdsk/c0t0d0s1      /var    ufs     1       no -
/dev/dsk/c0t0d0s7       /dev/rdsk/c0t0d0s7      /export/home    ufs     2 yes     -
/dev/dsk/c0t0d0s5       /dev/rdsk/c0t0d0s5      /opt    ufs     2       yes -
/devices        -       /devices        devfs   -       no      -
swap    -       /tmp    tmpfs   -       yes     -
/dev/dsk/c0t1d0s0       /dev/rdsk/c0t1d0s0      /usr2   ufs     3       yes -


Last edited by zazzybob; 05-22-2005 at 11:54 AM.. Reason: code tags again ;-)
 

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pcata(7D)							      Devices								 pcata(7D)

NAME
pcata - PCMCIA ATA card device driver SYNOPSIS
pcata@socket#:a -u pcata@socket#:a -u,raw DESCRIPTION
The PCMCIA ATA card device driver supports PCMCIA ATA disk and flash cards that follow the following standards: o PC card 2.01 compliance (MBR+fdisk table required for all platforms). o PC card ATA 2.01 compliance. o PC card services 2.1 compliance. The driver supports standard PCMCIA ATA cards that contain a Card Information Structure (CIS). For PCMCIA, nodes are created in /devices that include the socket number as one component of the device name referred to by the node. However, the names in /dev, /dev/dsk, and /dev/rdsk follow the current conventions for ATA devices, which do not encode the socket number in any part of the name. For example, you may have the following: +----------------+-----------------------------------+---------------------+ |Platform | /devices name | /dev/dsk name | +----------------+-----------------------------------+---------------------+ |x86 | /devices/isa/pcic@1,3e0 /disk@0:a | /dev/dsk/c1d0s0 | +----------------+-----------------------------------+---------------------+ |SPARC | /devices/iommu@f,e0000000 | /dev/dsk/c1d0s0 | | | /sbus@f,e0001000 /SUNW, pcm- | | | | cia@3,0 /disk@0:a | | +----------------+-----------------------------------+---------------------+ PRECONFIGURATION
If a PC Card ATA device is recognized, the pcata driver is automatically loaded, IRQs allocated, devices nodes created, and special files created (if they do not already exist). Known Problems and Limitations o You need to umount the file system before removing the disk. o The ufs file systems on removable media (PC Card ATA) should have one of the onerror={panic, lock, umount} mount options set. CONFIGURATION
Configuration topics include initial installation and configuration, identifying an unrecognized device, special files and hot-plugging. Initial Installation and Configuration 1. Install the Solaris software. 2. Boot the system. 3. Insert the PC card ATA device. Identifying an Unrecognized Device If you insert a PC card ATA device and it is not recognized (no special files created), use the prtconf command to identify the problem. 1. Run the prtconf -D command to see if your pcata card is recognized. (A recognized device will appear at the end of the prtconf output. For example: # prtconf -D . . . pcic, instance #0 (driver name: pcic) . . . disk, instance #0 2. If pcata does not appear in the prtconf output, there is a problem with the PC card adapter configuration or with the hardware. Check to see whether the problem is with the card or the adapter by trying to use the card on another machine and by seeing if it works on the same machine using DOS. Special Files For PC card devices, nodes are created in /devices that include the socket number as one component of a device name that the node refers to. However, the /prtc/dev names and the names in /dev/dsk and /dev/rdsk do follow the current convention for ATA devices, which do not encode the socket number in any part of the name. Hot-Plugging o If you want to remove the disk, you must unmount the file system. o Use the mkfs_pcfs(1M) command to create a pcfs file system: # mkfs -F pcfs /dev/rdsk/c#d#p0:d o To mount a pcfs file system, type: # mount -F pcfs /dev/dsk/c#d#p0:c /mnt o If you want to create a ufs file system, use the newfs command and type: # newfs /dev/rdsk/c#d#s# o To mount a ufs file system, type: # mount -F ufs /dev/dsk/c#d#s# /mnt o To create a Solaris partition, run the format command and go to the Partition menu. For more information, see the format(1M) man page. FILES
/kernel/drv/pcata pcata driver ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWpsdpr | +-----------------------------+-----------------------------+ SEE ALSO
format(1M), mount(1M), newfs(1M), pcmcia(7D), attributes(5), pcfs(7FS) SunOS 5.11 2 Mar 2007 pcata(7D)
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