Date: Sat, 23 Jan 2010 01:23:28 +0000 From: Adrian Wontroba <aw1@stade.co.uk> To: freebsd-stable@freebsd.org Subject: Re: 8.0-RELEASE -> -STABLE and size of / Message-ID: <20100123012328.GA3296@swelter.hanley.stade.co.uk> In-Reply-To: <20100122162155.GG3917@e-Gitt.NET> References: <20100122162155.GG3917@e-Gitt.NET>
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On Fri, Jan 22, 2010 at 05:21:56PM +0100, Oliver Brandmueller wrote: > > I just noticed somthing: I setup an 8.0-RELEASE amd64 box, / is default > 512M. First step after setup was to csup to RELENG_8 and buildkernel and > buildworld (no custom kernel, no make.conf). > > Instaling the new kernel failed, since /boot/kernel/ is already well > over 230 MBytes in size. moving that to kernel.old and writing a new one > with about the same size fails due to no space left on device. > > This is not a question; I do know how to get around this and how to > configure custom kernels so they are a fragment of that size afterwards. > However, I think this is a clear POLA violation. So, either GENERIC with > less debugging information (symbols and stuff), which makes debugging > harder or setting a higher default for / would be options, if not anyone > else has better ideas. /usr/src/UPDATING has this which will allow you to remove symbols when installing a kernel: 20060118: This actually occured some time ago, but installing the kernel now also installs a bunch of symbol files for the kernel modules. This increases the size of /boot/kernel to about 67Mbytes. You will need twice this if you will eventually back this up to kernel.old on your next install. If you have a shortage of room in your root partition, you should add -DINSTALL_NODEBUG to your make arguments or add INSTALL_NODEBUG="yes" to your /etc/make.conf. I concur that the 235 MB size of an amd64 8.0 kernel is a bit of a surprise. An i386 kernel is a mere 135 MB. IMO increasing the sysinstall default root slice size for at least amd64 would be a good thing. -- Adrian Wontroba
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