Date: Fri, 2 Jul 2010 10:22:35 +0100 From: krad <kraduk@googlemail.com> To: Matthew Seaman <m.seaman@infracaninophile.co.uk> Cc: Ed Flecko <edflecko@gmail.com>, freebsd-questions@freebsd.org Subject: Re: /boot is full after running "make installkernel" on FreeBSD 8.0 Message-ID: <AANLkTikzPBPENr3OhAro3s9nnlBL2poQ7Wi7kJ040hZ4@mail.gmail.com> In-Reply-To: <4C2D9659.3060208@infracaninophile.co.uk> References: <AANLkTil7rb8_YNbGPfwsNt1_Zn4hdOr9hTpGwVwTEbrF@mail.gmail.com> <20100701212112.GA28138@gizmo.acns.msu.edu> <AANLkTinLgvd9GLP8RXeiWcowBoFxSeZSJLMHjCFq8jGR@mail.gmail.com> <4C2D9659.3060208@infracaninophile.co.uk>
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On 2 July 2010 08:33, Matthew Seaman <m.seaman@infracaninophile.co.uk>wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 01/07/2010 22:29:54, Ed Flecko wrote: > > Henrik, > > When I FIRST installed 8.0, I did create a separate /home partition. > > When I installed the kernel and starting running out of space in / , I > > thought "O.K...I'll let FreeBSD make the partition sizes IT wants to > > and see if I have the same problem, and I did. > > > > Apparently, 512M is just, not, quite big enough so I think I'll try 1G > > to give me plenty of room. > > Is it time for me to start advocating "one big partition" again? > > This may not be the consensus view, but I have found that for a quiet > life and general lack of botheration it helps to create *only two* > partitions on your hard drive: > > b: Swap -- usually 2x RAM > a: Everything else > > Now, I've run this setup on literally hundreds of servers without > problems. The usual argument against doing this is "but a run-away > process might log so much that is fills your hard drive." This is true. > You might also be killed by a lightning strike the next time you leave > your house. Run-away logfiles are actually pretty rare, and given that > 80GB would be considered a pretty small hard drive nowadays, and you can > fit a standard FreeBSD install with quite a lot of extra software inside > 10GB, you're likely to have sufficient empty space that you'ld get days > of warning before it caused real trouble. In which case, newsyslog(8) > is your friend. Cycling logs based on size and checking that every hour > will avoid almost all trouble. You do monitor disk space usage on your > servers don't you? Cacti is in ports and its pretty easy to set up, as > are several other alternatives. > > Watch this list: you'll see people having trouble with too small root > partitions with great regularity. I don't think I've /ever/ seen anyone > ask about dealing with a process generating huge amounts of log data. > > Even if you do fill up the hard drive, it's not actually guaranteed > disaster. FreeBSD itself will keep running just fine. So will most web > applications -- although you won't get any logging. Simply delete some > of the excess files, and the system will spring back to normal function. > Filling the partition certainly will crash a database, but for serious > RDBMS setups, I generally make an exception and put the database working > files onto their own partition[*]. > > Nowadays too, I much prefer using ZFS -- so I have *one* zpool from > which is allocated all of the space for the zdevs on the system. This > is much the best of both worlds -- you get as many filesystems as you > can eat, but each of them can use as much of the total available space > as it needs to. > > Cheers, > > Matthew > > [*] As this usually involves hardware RAID10 with plenty of cache and a > BBU on at least 4 x 15k RPM SAS2 drives, it would generally be on a > separate partition in any case. > > - -- > Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard > Flat 3 > PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate > JID: matthew@infracaninophile.co.uk Kent, CT11 9PW > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0.14 (Darwin) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAkwtllkACgkQ8Mjk52CukIyTOwCeJYhR6kY6wxmP+WlNyGF/eJte > I0wAnRuULVWsjqxFAHaL1SFFTJd2sMMW > =T9JF > -----END PGP SIGNATURE----- > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > all i can say is your a brave boy 8) A 1 TB+ / slice would take ages to fsck. Of course all these issues go away with zfs
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