Date: Sun, 11 Dec 2011 00:02:04 +0200 From: Manolis Kiagias <sonicy@otenet.gr> To: freebsd-questions@freebsd.org Subject: Re: 9.0 install and journaling Message-ID: <4EE3D6DC.8000201@otenet.gr> In-Reply-To: <4EE3D1F0.60500@herveybayaustralia.com.au> References: <4EE32BB6.3020105@herveybayaustralia.com.au> <alpine.BSF.2.00.1112100755520.11994@wonkity.com> <4EE38454.3020307@otenet.gr> <4EE3D1F0.60500@herveybayaustralia.com.au>
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On 10/12/2011 11:41 μμ, Da Rock wrote: > On 12/11/11 02:09, Manolis Kiagias wrote: >> On 10/12/2011 5:19 μμ, Warren Block wrote: >>> On Sat, 10 Dec 2011, R Skinner wrote: >>> >>>> So I went to the handbook. I'm still a little confused though: can >>>> one still setup the usr and var (and so forth)? It said you >>>> possibly could, but it escaped me as to how. >>> >>> Use the bsdinstall partition editor to manually create the >>> partitions. I documented how to create an old-fashioned MBR layout >>> with bsdinstall on the forums a while back: >>> http://forums.freebsd.org/showpost.php?p=149210&postcount=13 >>> >>> The process would be similar for GPT, which is really the way to go >>> now. >>> >> >> As Warren says, you can still create /usr and /var and all the other >> "legacy" partitions if you so wish - and you may even use the full >> journaling (gjournal) on them. >> But the default for bsdinstall is to use gpart, install everything on >> a big / and create UFS2 partitions with the new soft-updates >> journaling system (on by default). Compared to gjournal, soft-updates >> journaling only journals metadata and not everything like gjournal >> does. This will definitely make it faster although probably less >> "safe" than gjournal. It should be good for most purposes though and >> needs no additional steps after install (unlike gjournal). Since it's >> the default, the decision to go for one big / seems ok after all. I >> believe this is more or less what Linux is doing with Ext3/Ext4 >> filesystems (metadata journaling). > GPT is cool - no problems there. The main thing I want to know is if I > need to run fsck every time the system dies unexpectedly (which is a > higher occurrence on a laptop)? GJournal helps in that it takes care > of that. The growing size of drives is another concern given the time > it takes to check a 500G disk (my smallest atm), although this is way > down on the list for the moment. It does the fsck automatically and it seems to be fast. As with other metadata journaled filesystems you will probably have to do a full check occasionally. Can't you give you any times atm, I need to dump /repartition/restore some of my systems to use su+j. Only tested on virtual machines. > > As for one big / partition- linux may be using it: and its their > biggest failing! I've had a system lockup due to lack of space. Never > a problem with bsd as logs will only fill up var, a user won't break > it with filling up usr, etc. And root always stays protected! Its > saved my life a number of times... I can quickly fill TB's of data in > no time, and if something goes bang the logs can be a silent killer > too. My 2c's anyway... > I am used to the separate partitions too, although I realize a single big / would be suitable for more than a few systems. It's nice we have a choice here.
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