Linux - SoftwareThis forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
Theoretically, although without and internal hard drive, you should findout whether or not your BIOS supports booting of the USB disk. Because if your BIOS doesn't support, you can Install and Partition all you like, but it won't boot.
I would imagine there would be quite a few difficulties involved with this. As i understand it, grub does not load the usb drivers and once the bootloader is running, you have chosen the harddisc to boot from. The kernel, i believe, is what loads them, if you have the kernel on your usb disk.... see the issue?
You may be more successful with a cd based distro, as all the info it needs is on the disc, which you could use on a USB drive if the bios supported booting from it.
But, i have never attempted this, so i may be totaly off base, just my
I wouldn't think that a RedHat install would work on a USB disk because there wouldn't be enough space. But as long as the BIOS supports booting off USB it shouldn't be a huge problem to make some form of linux boot. (just a tiny one ) But check this out: http://linuxdocs.tuxfamily.org/flonix/index.php
I think an 80GB USB Hard disk should be more than enough for any Linux.
I guess I am thinking of making a dual boot system, by adding this USB 80GB HD. The only think is the boot loader would have to be either on the 1st HD or on CDROM.
by costasm The only think is the boot loader would have to be either on the 1st HD or on CDROM.
no that wouldnt work because the bootloader has no way of accessing usb devices, either the bios needs to be able to boot from a usb device(ie the bootloader on usb device) or you'll have to patch a current bootloader to allow reading from usb devices(not an easy task), i dont know of any bootloaders that can do this. but you definatly can get bios'es that allow booting off usb devices cos ive seen them.
Oh yeah, I didn't think about the install not detecting it..... Well There is only one way to find that one out. Pop in the install disks and when you get to the partioning section see what it can see of your machine
Assuming the BIOS does not boot from USB then, you would still need a /boot partition on your HD (about 102MB) since GRUB starts the booting process there. I think this would work as long as the USB device is detected and the partition is mounted early before services are started.
I don't know if there is any BIOS out there that boots from USB or Firewire. I don't know if there are any technical limits to this. Obviously it would be much slower than booting from an internal HD.
I am 98% certain that if you include full USB support in the kernel image that it would work. The only thing I could think that could be a problem is that by adding another USB drive... Also, which version of USB would you be using? 1.0/1.1 @ 10mbps or 2.0 @ 480mbps? If it's 1.0/1.1 I would ditch the idea as a permanment solution. That would be a really slow HD . But as an emergency solution (ie you find yourself in a windows only computer lab!) a USB key/floppy combo would be perfect.
I'm running SuSE on a drive I intend to make USB. I have an ASUS motherboard (no BIOS support for USB boot--I contacted them and asked). I'm quite experienced with GRUB, and SuSE 9 repair mode installation automatically fixes errors in GRUB. I would assume you would need to use a boot floppy or boot CD, which is not really a big problem. I'm planning on hooking the drive up as USB with the primary master (Windows XP) disconnected. This will prevent Yast from rewriting GRUB to the boot sector on that drive (GRUB is already on the Linux drive). Then boot from the installation CD and run automatic repair, which should tell GRUB how to configure the drive in the new position. Since there's no bios support, that in itself won't boot the drive. If my boot floppy will find and boot the drive, then copying the GRUB configuration to the floppy and burning a bootable CD should enable ANY system to boot that drive (assuming, of course, that there's only one USB drive to boot at any given time). A similar procedure (it doesn't use GRUB) should work for FreeBSD as well, and I am planning to do that likewise. That should enable anyone to run any OS from any computer without partitioning, using a boot manager, installing a new drive, running VMware, or buying Windows. Don't tell Mr. Gates. Any configuration ideas would be appreciated.