Date: Mon, 25 Apr 2011 22:15:57 -0400 From: Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com> To: Bartosz Fabianowski <freebsd@chillt.de> Cc: Torfinn Ingolfsen <torfinn.ingolfsen@broadpark.no>, freebsd-stable@freebsd.org Subject: Re: System extremely slow under light load Message-ID: <BANLkTimrSznAGJhC6FrepXpacXiEj-EMwA@mail.gmail.com> In-Reply-To: <4DB60274.60701@chillt.de> References: <4DB4589B.2020909@ksu.ru> <4DB45D6C.20203@chillt.de> <20110424182456.9DD03589@server.theusgroup.com> <4DB46ED4.2010500@chillt.de> <20110425004818.GA22579@icarus.home.lan> <4DB51F27.5010508@chillt.de> <20110425184728.C73992@sola.nimnet.asn.au> <4DB56CDA.50504@chillt.de> <20110425232429.N85801@sola.nimnet.asn.au> <4DB57F45.4080107@chillt.de> <20110425141643.GA38380@icarus.home.lan> <4DB583E9.8080507@chillt.de> <20110425234117.d1476c95.torfinn.ingolfsen@broadpark.no> <4DB60274.60701@chillt.de>
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On Mon, Apr 25, 2011 at 7:23 PM, Bartosz Fabianowski <freebsd@chillt.de>wrote: > Have you tried just using dd to copy the iso image of a Ubuntu / Linux >> LiveCD to a suitably sized USB memory stick? >> It has worked for me in the past. >> > > As per Mehmet's tip, I did just that with a Debian image. If it works for > Ubuntu images as well then I really wonder why the only documented way is > via Unetbootin. > > - Bartosz > _______________________________________________ > To reduce the number of files to maintain , some Linux distributions started to generate .iso files both for CD/DVD burning and USB stick dd copying . Such distributions are mostly called "dual" or "hybrid" in their names with .iso extension to distinguish them from only CD/DVD burning .iso files . If an .iso is named for USB without "dual" or "hybrid" names , it is very likely that it is prepared in such a way for USB dd copying . With respect to my opinion , most .iso files which they are prepared for CD/DVD burning will be able to boot and install from dd copied USB sticks because .iso is a FILE format , NOT a DEVICE format . The problem is not the file format but the ability of the operating system to use devices . For example , I am seeing operating systems in CD , they are booting from DVD drive ( because BIOS is loading their kernel , etc. ) but failing to install because their kernels , etc. are NOT able to use the DVD drive when they are taking the control of the PC . Thank you very much . Mehmet Erol Sanliturk
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