diff options
Diffstat (limited to 'sbin/dump')
-rw-r--r-- | sbin/dump/dump.8 | 38 |
1 files changed, 24 insertions, 14 deletions
diff --git a/sbin/dump/dump.8 b/sbin/dump/dump.8 index fedf9a6..ea35653 100644 --- a/sbin/dump/dump.8 +++ b/sbin/dump/dump.8 @@ -200,7 +200,7 @@ script string defined by for the output device of each volume. This child pipeline's .Dv stdin -.Pa ( /dev/fd/0 ) +.Pq Pa /dev/fd/0 is redirected from the .Nm output stream, and the environment variable @@ -230,19 +230,25 @@ To obtain a consistent dump image, .Nm takes a snapshot of the file system in the .Pa .snap -directory in the root of the filesystem being dumped and +directory in the root of the file system being dumped and then does a dump of the snapshot. The snapshot is removed when the dump is complete. -This option is ignored for unmounted or read-only filesystems. +This option is ignored for unmounted or read-only file systems. If the .Pa .snap -directory does not exist in the root of the filesystem being dumped, -the dump will fail. +directory does not exist in the root of the file system being dumped, +the +.Nm +will fail. This problem can be corrected by creating a .Pa .snap -directory in the root of the filesystem to be dumped; -its owner should be root, its group should be operator, -and its mode should be 0770. +directory in the root of the file system to be dumped; +its owner should be +.Dq Li root , +its group should be +.Dq Li operator , +and its mode should be +.Dq Li 0770 . .It Fl n Whenever .Nm @@ -439,7 +445,7 @@ Pathname of the remote .Xr rmt 8 program. .It Ev RSH -Pathname of remote shell program, if not +Pathname of a remote shell program, if not .Xr rsh 1 . .El .Sh FILES @@ -473,14 +479,18 @@ abnormal termination is indicated with an exit code of 3. Fewer than 32 read errors on the file system are ignored, though all errors will generate a warning message. This is a bit of a compromise. -In practice it is possible to generate read errors when doing dumps +In practice, it is possible to generate read errors when doing dumps on mounted partitions if the file system is being modified while the -dump is running. +.Nm +is running. Since dumps are often done in an unattended fashion using .Xr cron 8 -jobs asking for Operator intervention would result in the dump dying. -However there is nothing wrong with a dump tape written when this sort -of read error occurs and there is no reason to terminate the dump. +jobs asking for Operator intervention would result in the +.Nm +dying. +However, there is nothing wrong with a dump tape written when this sort +of read error occurs, and there is no reason to terminate the +.Nm . .Pp Each reel requires a new process, so parent processes for reels already written just hang around until the entire tape |