On Monday 03 April 2006 14:01, Craig White wrote: >On Mon, 2006-04-03 at 13:53 -0400, Gene Heskett wrote: >> 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. > >---- >evidently almost 7 years (2 kernels ago) > >the date of the man page in the footer states... > >Linux 2.2 15 June 1999 >FSTAB(5) > >Craig Well, TBT, the last time I looked at it was about rh5.0 or so, 2.0 kernel days. I need to find time for more reading I guess... -- 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.
