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Hey what are these files in /dev named with sda. I know they are used for mounting usbflash drives but what is there meaning ? Is it something like hda ...
  1. 04-06-2009 #1
    vickey_20
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    sda files in /dev/

    Hey what are these files in /dev named with sda. I know they are used for mounting usbflash drives but what is there meaning ? Is it something like hda and something like that . Man I m really very weak at harware part some 1 please help me out?
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  2. 04-06-2009 #2
    coopstah13
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    they are device nodes related to your disks, sda would be the first disk, sda1 would be the first partition on the disk, etc
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  3. 04-06-2009 #3
    vickey_20
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    this is the o/p of fdisk -l on my system

    Disk /dev/hda: 40.0 GB, 40020664320 bytes
    255 heads, 63 sectors/track, 4865 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes

    Device Boot Start End Blocks Id System
    /dev/hda1 * 1 13 104391 83 Linux
    /dev/hda2 14 4776 38258797+ 83 Linux
    /dev/hda3 4777 4865 714892+ 82 Linux swap

    but here i dont see sda . I use it only when i have to mount my usbflash drive.( The mounting part I found through the internet)
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  4. 04-06-2009 #4
    coopstah13
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    what distro and version are you using?
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  5. 04-06-2009 #5
    blinky
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    They are device entries for disks.

    In the old days hda, hdb etc was for ide disks and sda, sdb etc was for scsi disks.

    It depends on the distro, but most major dists (fedora, suse etc) are using the scsi dev entries for all disks (including usb memory disks), except for slackware which is still using the old naming convention.

    I noticed the change round about fc6/7.
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  6. 04-06-2009 #6
    vickey_20
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    I'm using a old version of RedHat (9). When ever I have to mount the usb flash drive I have to use this command.
    mount /dev/sda1 /mnt/usblfash
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  7. 04-07-2009 #7
    devils casper
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    I would suggest you to install latest version of any distro. RH9 is old and doesn't support a lot of new hardware.
    You will be amazed to see the difference between RH9 and latest versions.
    It is amazing what you can accomplish if you do not care who gets the credit.
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  8. 04-08-2009 #8
    jmadero
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    why use RH at all when it costs doesn't it? Switch over to a free one that updates more frequently (this is all just from my understanding). Fedora Core is based on RH and is pretty nice
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  9. 04-14-2009 #9
    Rubberman
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    Quote Originally Posted by jmadero View Post
    why use RH at all when it costs doesn't it? Switch over to a free one that updates more frequently (this is all just from my understanding). Fedora Core is based on RH and is pretty nice
    If you want RHEL without the cost, get CentOS, which is the community version of RHEL. Same thing, but without the Red Hat logos. It is VERY stable and well supported. In fact, if you need Red Hat will happily sell you a support contract for CentOS just like they sell them for RHEL. That's what I am running - 64-bit CentOS 5.3. I've been running CentOS for well over a year now, and am very happy with it.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!
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  10. 04-15-2009 #10
    vickey_20
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    thanks
    I tried installing Fedora 9 on my system but it failed. Then somehow managed to get RHCL 4. Now I'm currently working on it. I have a real old PC I wonder whether the latest versions will run on it or not.
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