On Tue, Oct 30, 2018 at 11:28 PM Rick Stevens <ri...@alldigital.com> wrote:
> On 10/29/18 9:40 PM, Danishka Navin wrote: > > Hi Rick, > > > > Thanks for your quick response. > > > > On Tue, Oct 30, 2018 at 1:26 AM Rick Stevens <ri...@alldigital.com > > <mailto:ri...@alldigital.com>> wrote: > > > > On 10/29/18 11:31 AM, Danishka Navin wrote: > > > Hi, > > > I have to prepare hundreds of USB sticks which need to either > > papre as a > > > liveUSB or make it as a installed system (using the USB as the > storage > > > when installing fedora). > > > > You can install to a USB stick if you want. Generally, Linux running > on > > any sort of a USB drive is quite slow, so keep that in mind. > > > > > > Yes, I know but this is to avoid misconfiguration of over 1000 servers > > across the country within a small window with less technical people in > > remote areas. > > Using this method, they'd have a running system by booting the USB > stick, but it'd be very slow as everything would run off the USB stick. > Also remember that there's a limited number of write cycles you can do > to FLASH drives, which would limit the lifespan of the system. > > While it might take a bit more time for you to craft, you might actually > be better off in building a USB stick that has both the installable > image and a kickstart file in it that would do a full, automated install > to their local hard drive. That's what kickstart is intended to do. Once > you have that USB stick (installable image and the kickstart file), you > can duplicate that onto multiple sticks using the image method. > > > You could then clone the USB stick to other USB sticks via "dd" using > > the raw, block devices. Assuming /dev/sdb is the drive you installed > to > > and /dev/sdc is the intended target: > > > > dd if=/dev/sdb of=/dev/sdc bs=4k,sync > > > > You could also make an image of the stick on hard drive using dd: > > > > dd if=/dev/sdb of=/somefilename.img bs=4k,sync > > > > > > this means once installed ISO in to USB (completion of anaconda and post > > installation) create an .img ? > > Once a running system is on the USB stick and is bootable, you'd create > an image (.img). I use .img to differentiate between an ISO and a > running system. An ISO image (.iso) is essentially an image of a CD or > DVD and has a specific format as to file naming limits and the like and > BIOS/UEFI firmware know how to boot an CD/DVD and a .iso file emulates > that. > > Using the .img, things would run off the USB stick, with the slow I/O > and potentially limited lifespan issues I mentioned above. > > If we're about the kickstart mechanism, you'd create a USB stick that > contains the ISO image of the installable system and your kickstart > file. You'd make an image of that stick, then duplicate it to multiple > sticks. > > Send the sticks out, give instructions for the proper way to run the > kickstart (it's not that difficult, just some extra typing they need to > do at the boot prompt), then let the USB stick and kickstart install the > system to their local hard drive. No lifespan issues and fast disk I/O. > > As I said, you'll have to craft the kickstart file yourself, but it's > not really that hard. Google "install via kickstart" and you'll see > what's involved. > ---------------------------------------------------------------------- > - Rick Stevens, Systems Engineer, AllDigital ri...@alldigital.com - > - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - > - - > - When in doubt, mumble. - > ---------------------------------------------------------------------- > _______________________________________________ > users mailing list -- users@lists.fedoraproject.org > To unsubscribe send an email to users-le...@lists.fedoraproject.org > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: > https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org > Thanks Rick, Use case of deploying 1000 servers is to run moodle based exam and its required to confirm nothing left in the system (including student created files). So, it was already planned to get the USB drive after exam and no need to worry about someone has to clean the system or/and no need to worry about original system in each server. Since no one install it at the exam center (as we clone an image to all usb drives) no need to know the root password. So, this is the current approach. Regards, -- Danishka Navin http://danishkanavin.blogspot.com http://twitter.com/danishkanavin
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