diff --git a/man8/sync.8 b/man8/sync.8 deleted file mode 100644 index 376087447..000000000 --- a/man8/sync.8 +++ /dev/null @@ -1,93 +0,0 @@ -.\" Reboot/halt and Linux information extracted from Rick Faith's original -.\" sync(8) manpage, dating back to the Linux 0.99 days. The Linux-specific -.\" information is attributed to Linus Torvalds -.\" Copyright 1992, 1993 Rickard E. Faith (faith@cs.unc.edu) -.\" -.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE) -.\" May be distributed under the GNU General Public License -.\" %%%LICENSE_END -.\" -.TH SYNC 8 1998-11-01 "GNU" "Linux Programmer's Manual" -.SH NAME -sync \- synchronize data on disk with memory -.SH SYNOPSIS -.B "sync [\-\-help] [\-\-version]" -.SH DESCRIPTION -.B sync -writes any data buffered in memory out to disk. -This can include (but is not limited to) modified superblocks, -modified inodes, and delayed reads and writes. -This must be implemented by the kernel; -The -.B sync -program does nothing but exercise the -.BR sync (2) -system call. -.PP -The kernel keeps data in memory to avoid doing (relatively slow) disk -reads and writes. -This improves performance, but if the computer -crashes, data may be lost or the filesystem corrupted as a result. -.B sync -ensures that everything in memory is written to disk. -.PP -.B sync -should be called before the processor is halted in an unusual manner -(e.g., before causing a kernel panic when debugging new kernel code). -In general, the processor should be halted using the -.BR shutdown (8) -or -.BR reboot (8) -or -.BR halt (8) -commands, which will attempt to put the system in a quiescent state -before calling -.BR sync (2). -(Various implementations of these commands exist; consult your -documentation; on some systems one should not call -.BR reboot (8) -and -.BR halt (8) -directly.) -.SH OPTIONS -.TP -.B "\-\-help" -Print a usage message on standard output and exit successfully. -.TP -.B "\-\-version" -Print version information on standard output, then exit successfully. -.TP -.B "\-\-" -Terminate option list. -.SH ENVIRONMENT -The variables -.BR LANG , -.BR LC_ALL , -.BR LC_CTYPE , -and -.B LC_MESSAGES -have the usual meaning. -.SH CONFORMING TO -POSIX.2. -.SH NOTES -On Linux, -.B sync -is guaranteed only to schedule the dirty blocks for writing; it can -actually take a short time before all the blocks are finally written. -The -.BR reboot (8) -and -.BR halt (8) -commands take this into account by sleeping for a few seconds after -calling -.BR sync (2). -.PP -This page describes -.B sync -as found in the file\%utils-4.0 package; -other versions may differ slightly. -.SH SEE ALSO -.BR sync (2), -.BR halt (8), -.BR reboot (8), -.BR update (8)