On Monday 03 April 2006 13:40, Craig White wrote: >On Mon, 2006-04-03 at 13:19 -0400, Gene Heskett wrote: >> On Monday 03 April 2006 12:19, Sjoerd Mullender wrote: >> >Sjoerd Mullender wrote: >> >> Gene Heskett wrote: >> >>> I was under the impression (and no idea where I heard/read that >> >>> now) that any partitions marked 0 0 on the end of the fstab line >> >>> were mounted in 'single' mode. Is this not the case? I haven't >> >>> used single with this FC2 install ever, no need to so far, so I >> >>> don't know, but I'll find out the next time I reboot to it. >> >> >> >> Those numbers are the dump frequency and dump pass number, i.e. >> >> unused by nearly everyone nowadays. They were there way back >> >> (nearly 30 years ago) when they were actually used, but since >> >> hardly anybody uses dump/restore anymore to make backups, those >> >> fields are not used anymore. See the descriptions of fs_freq and >> >> fs_passno in the manual page for fstab(5). >> >> >> >> (If you look at the manual for dump (if you have it installed), >> >> you can see that dump uses dump levels. A dump at level n will >> >> dump everything that changed since the last level m (m <= n) >> >> dump. The pass number specifies which partitions can be dumped >> >> at the same time, first all partitions with pass number 0, then >> >> all with pass number 1, etc.) >> > >> >Oops. The level is for fsck (file system check), not dump. It's >> > been a while. >> >> I was thinking I'd recalled it in that context. Its not well >> clarified in the manpages IMP. > >---- >man fstab... > >The fifth field, (fs_freq), is used for these filesystems by the > dump(8) command to determine which filesystems need to be dumped. If > the fifth field is not present, a value of zero is returned and > dump will assume that the filesystem does not need to be dumped. > >The sixth field, (fs_passno), is used by the fsck(8) program to >determine the order in which filesystem checks are done at reboot > time. The root filesystem should be specified with a > fs_passno of 1, and other filesystems should have a fs_passno of 2. > Filesystems within a drive will be checked sequentially, but > filesystems on different drives will be checked at the same time to > utilize parallelism available in the hardware. If the sixth field > is not present or zero, a value of zero is returned and fsck will > assume that the filesystem does not need to be checked. > >Seems clear enough but you can write a patch for the man page if you > can explain it better. > >Craig Humm, its been several years since I looked at that, and it appears someone has beat me to it, thats plenty clear enough to me now. Thanks. -- Cheers, Gene People having trouble with vz bouncing email to me should add the word 'online' between the 'verizon', and the dot which bypasses vz's stupid bounce rules. I do use spamassassin too. :-) Yahoo.com and AOL/TW attorneys please note, additions to the above message by Gene Heskett are: Copyright 2006 by Maurice Eugene Heskett, all rights reserved.
