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  #1  
Old 9th October 2010, 09:27 PM
jemadux Offline
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Join Date: Feb 2010
Location: Greece
Posts: 61
windows_xp_2003firefox
/boot separate partition

some ppl use the /boot in separate partition...
why do that ? and why some distribution has as default ?
what I will earn by doing this ?
PS
i dont have my laptop now and i sign in via internet cafe
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  #2  
Old 9th October 2010, 10:19 PM
assen Offline
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linuxfedorafirefox
Re: /boot separate partition

Hi,

Although having /boot on a separate partition is not strictly necessary, sometimes it might be useful - for example:

- When you have an advanced filesystem you want to have in /, but GRUB cannot read it (e.g., the case with ext4 until some time ago); then you put the kernel, i.e. /boot, on a separate partition with an older FS which GRUB can read (e.g., ext3 -- or simply do not use GRUB, but that's another story)

- When you want your kernel and/or boot configuration to be available to other OS on a multi-boot platform; the other OS might not be able to access the / filesytsrem (e.g., ext3 or ext4) but might be able to read the simpler ext2; then you put /boot on a separate partition with ext2.

- A filesystem crash might prevent the machine form booting, if the kernel (/boot) resides on the / partition. If the kernel is on a separate partition, a sudden crash (power-off, for example) is unlikely to damage it since there very limited I/O on the /boot partition and it is sync'ed most of the time.

WWell,
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  #3  
Old 9th October 2010, 10:30 PM
sonoran Offline
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linuxfedorafirefox
Re: /boot separate partition

Another security measure is to make your /boot partition read-only. You would only need to change that for kernel updates or to alter your grub configuration.
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  #4  
Old 10th October 2010, 08:57 AM
CSchwangler Offline
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linuxfedorafirefox
Re: /boot separate partition

If you happen to install to a lvm you also need the /boot partition, since all other partitions are within the lvm and grub cannot boot from lvm.
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