LOCKDEV - Online Linux Manual PageSection : 8
Updated : SEPTEMBER 2009
Source :
Note :

---

NAMELockdev is a setgid binary, which provides a reliable way to put an exclusive lock in /var/lock to devices (e.g. ttyS0) using both FSSTND and SVr4 methods, so regular users don't need write access there. This task is achieved through calls to the liblockdev(3) API.

---

SYNOPSIS/usr/sbin/lockdev [<operation>] <device>

---

DESCRIPTIONThe lockdev command can perform one of the following operations (calls to liblockdev(3) API): -l - lock device with dev_lock() function -u - unlock device with dev_unlock() function no operation - test lock with dev_testlock() function

---

RETURN VALUES
   Value dev_lock dev_unlock dev_testlock
   0 OK OK not locked
   1 locked other locked other locked
   2 EACCES
   3 EROFS
   4 EFAULT
   5 EINVAL
   6 ENAMETOOLONG
   7 ENOENT
   8 ENOTDIR
   9 ENOMEM
  10 ELOOP
  11 EIO
  12 EPERM
 255 error error error

---

SEE ALSOlockdev(3). 0

---

Johanes Gumabo

---

Data Size   :   4,570 byte
man-lockdev.8Build   :   2024-12-05, 20:55   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   2 / 239,113
Visitor ID   :     :  
Visitor IP   :   3.133.122.95   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36

---

Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .

---

If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.

---