And now for a kindergarten-level question, Re: Update on my PINGish bootable USB
Kathinka <[email protected]>
| Newsgroups | gmane.org.user-groups.linux.dunedin.general |
|---|---|
| Message-ID | <CAMWvXDaO4Qy9ZKYO2RSSdSSu94Tz6=Pe46suhbj0nMLeusR_6A@mail.gmail.com> |
Reece wants to do things like "*not* adding wireless networking and USB3 support " - all I want is a way to stop caps lock. So far I have used several hours of my diminishing life expectancy back-tracking to re-type words that have suddenly gONE INTO UPPEr case because of my clumsiness. Can I disable it, other than with duct tape? I'd rather have to hold the shift key down for the few times I need to use all caps. Kathinka. On 9 March 2014 18:32, Reece Arnott <[email protected]> wrote: > I'm getting my head around compiling the kernel and modules from source > code and making some progress on figuring out a number of different ways of > *not* adding wireless networking and USB3 support via kernel modules > (issues number 2 and 3 in my previous long email). Is there an easy way to > compile modules without compiling the entire kernel (in particular the USB3 > support in xhci_hcd.ko of the 3.1.2 kernel from source downloaded from > ftp://ftp.kernel.org/pub/linux/kernel/v3.x/linux-3.1.2.tar.bz2 and > setting different kernel information than that of the host system)? It > takes a couple of hours to compile everything and when you do it wrong 3 or > 4 times it starts to get annoying. > > I'm not sure what I was doing wrong with transferring the rootfs.tar.bz2 > filesystem to be a new initrd.gz loop device filesystem (issue number 1 in > my previous long email) but I didn't have much trouble with doing it this > weekend. > > I suspect I was tired and not paying attention to one of two things: > 1. The filesystem contains symlinks so I couldn't unzip it, select all, > copy and paste in nautilus. I unzipped it directly to a mounted and > formatted loop device. > 2. There are 3 different sizes to keep in mind and a>b>c where a is the > size of the unzipped rootfs.tar.bz2, b is the filesize of the mounted loop > device, and c is the amount of ram set aside in syslinux.cfg to load this > loop device into. For future things I have created another little script to > transfer from a currently mounted initrd to a newly created and differently > sized one. See below... > > I have also figured out another way to create a new bootable USB (and for > completeness bootable CD iso) without using the full UNetbootin interface, > see below also. I needed to find the mbr.bin to replace the USB master boot > record (using dd) and isolinux.bin to be the boot sector for the CD (using > mkisofs). They were both in the same syslinux library folder > /usr/lib/syslinux. There is one more missing link as I am currently still > relying on syslinux to install the bootsector in the active partition. I > suspect if I knew the correct file in the syslinux library folder then I > could use dd to copy the bootsector rather than use syslinux which you'd > have to install on any Linux system before being able to use the script. dd > is more likely to be previously installed. > > Does anyone know what file is used as the bootsector for syslinux on a > FAT32 filesystem? I've installed syslinux on my Ubuntu machine and I am > assuming its one of the files in /usr/lib/syslinux. I may have to download > the source code and see what files it uses for the -i (install bootsector) > option. > > ---Transfer initrd to different size loop device---- > > echo "New Size in KB" > read filesize > echo "File for new initrd" > read initrdnew > echo "Folder to mount new initrd" > read initrdnewmount > > #Assumes the loadfs.sh has been run first > echo "Folder for mounted initrd" > read initrdmount > > sudo dd if=/dev/zero of=$initrdnew bs=1024 count=$filesize > sudo losetup /dev/loop1 $initrdnew > sudo mkfs -t ext3 -m 1 -v /dev/loop1 > sudo mount -t ext3 /dev/loop1 "$initrdnewmount" > > echo "Zipping up the old filesystem" > cd "$initrdmount" > sudo tar -cjf "/tmp/rootfs.tar.bz2" * > cd "$initrdnewmount" > echo "Unzipping to the new filesystem" > sudo tar -xjf "/tmp/rootfs.tar.bz2" > > echo "Type: sudo umount \"$initrdnewmount\"" > echo "to unmount the new filesystem." > > ---- end of file ----- > > > > ---- make bootable cd iso---- > #isolinux.bin oriignally found in /usr/lib/syslinux/isolinux.bin > echo Where is the USB drive mounted? > read mountpoint > echo Destination iso? > read bootcdiso > mkisofs -b bootableiso/isolinux.bin -c bootableiso/boot.cat -no-emul-boot > -boot-load-size 4 -boot-info-table -o "$bootcdiso" "$mountpoint" > > ---- end of file ----- > > > --- make usb bootable---- > #mbr.bin originally found in /usr/lib/syslinux/mbr.bin > echo What device to make bootable? > read bootabledevice > echo What partition do you want to make active? > read activepartition > sudo syslinux -i $bootabledevice$activepartition > sudo dd conv=notrunc bs=440 count=1 if=mbr.bin of=$bootabledevice > sudo parted $bootabledevice set $activepartition boot on > > ---- end of file ----- > > > -- "Believing men would act in their own interest was not cynicism, it > turned out, but sheerest optimism; in reality men do not meet so high a > standard." -- Harry Potter and the Methods of Rationality (Chapter 84) > http://hpmor.com/ Reece Arnott Dunedin New Zealand > > _______________________________________________ > DunLUG mailing list > [email protected] > http://lists.ethernal.org/listinfo/dunlug > DunLUG Wiki - http://dunlug.kallisti.net.nz/ > -- IMPORTANT: If you forward this e-mail please delete the forwarding history which includes my e-mail address. It's a courtesy to all of us who may not wish to have our e-mail addresses sent all over the world. Thank you. "A liberty is not the same as a right, because the latter entails a reciprocal obligation on someone else's part." Thomas Szasz _______________________________________________ DunLUG mailing list [email protected] http://lists.ethernal.org/listinfo/dunlug DunLUG Wiki - http://dunlug.kallisti.net.nz/