Date: Sun, 14 Aug 2011 12:02:06 +0000 From: Alexander Best <arundel@freebsd.org> To: Test Rat <ttsestt@gmail.com> Cc: Eduardo Morras <nec556@retena.com>, freebsd-current@freebsd.org Subject: Re: [rfc] replacing /boot/kernel.old with a unique directory name Message-ID: <20110814120206.GA66085@freebsd.org> In-Reply-To: <86bovsyzwe.fsf@gmail.com> References: <20110813195127.GA34295@freebsd.org> <CC816BA30D11428593A03EF5FF449295@multiplay.co.uk> <35403.3654126853$1313318383@news.gmane.org> <86sjp4z0xa.fsf@gmail.com> <86bovsyzwe.fsf@gmail.com>
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On Sun Aug 14 11, Test Rat wrote: > Test Rat <ttsestt@gmail.com> writes: > > > Eduardo Morras <nec556@retena.com> writes: > > > >> At 22:06 13/08/2011, Steven Hartland wrote: > >>>> i just had the following idea: how about instead of copying the > >>>> current kernel > >>>>to /boot/kernel.old and then installing the new one under /boot/kernel as the > >>>> results of target installkernel, we create a unique directory name > >>>> for the old > >>>>kernel? > >>> > >>>The default size of / is likely your biggest problem. > >> > >> Don't know how much compresable is /boot/kernel.old but tar with -z > >> or -j may be a workaround. We can extract on demand and swap current > >> /boot/kernel with new /boot/kernel. Other way of do it is link > >> /boot/kernel to current kernel and update it, but i don't know > >> (again) if it would work in single user mode. > > > > There is kgzldr that lets you boot compressed kernels. Try > > > > $ gzip /boot/kernel/* > > $ reboot the above works for me. just booted a compressed kernel. > > Nevermind, I've confused it with gzip support in loader, it also > has bzip2 support which for some reason doesn't work for me > > bzf_read: BZ2_bzDecompress returned -3
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