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Alan McKinnon pisze: |
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> On Wednesday 30 January 2008, Joseph wrote: |
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> |
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>> On 01/30/08 12:40, Pavel Sanda wrote: |
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>> |
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>>> hi, |
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>>> |
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>>> i have external hard drive connected through usb. i put the |
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>>> following line into /etc/fstab /dev/sda1 /mnt/usb ext3 |
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>>> user,auto,exec 0 0 |
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>>> |
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>> shouldn't that be: "users" instead of "user" |
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>> |
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> |
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> Maybe, maybe not, both are valid. |
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> "user" means that any non-root user can mount the device and the same |
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> user (or root) may umount it. |
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> "users" means that any non-root user can mount the device and any other |
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> user (or root) may umount it. |
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> |
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> |
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>> Plug the exter. HD into USB and post the last several line of "dmesg" |
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>> What does it say? |
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>> |
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> |
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> It'll probably say that the device is /dev/sdb1 or some such. The real |
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> problem is likely what another poster mentioned - suitable drivers not |
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> loaded yet when init comes to use /etc/fstab. |
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> |
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> One could try listing these drivers in /etc/autoload.d/kernel-2.6 but |
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> the easiest is probably to compile them into the kernel |
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> |
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> |
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> |
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> |
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|
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You have right. Standard unix kernel was designed to have all inside. I |
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don't know why some people still prefer modules than monolith kernel. If |
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you have modules, you must recompile all of them when new ABI comes out. |
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On monolithic kernel its all there. Also i don't know if modules are not |
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slower than monolith Kernel because of User space to Kernel space |
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connection. Compiled in modules makes kernel run faster, and if it's |
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server, then even 0.00001 sec makes the different on functions execution |
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and internal core communication. Partly beyond of that problem is IPC |
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module communication. But if there are benefits then also are problems |
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with error code execution or beta drivers installed. Also if You have |
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Molnar's Real Time Preemption Model on Your kernel, You should choose |
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monolithic kernel. PS: some drivers are don't work as modules like they |
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should. You see Windows - there are drivers like Linux modules - what it |
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makes? Blue screens of death ;), but this is another story... ;) |
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|
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Mateusz M. |
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-- |
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