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On Wed, Sep 7, 2011 at 7:55 PM, Neil Bothwick <neil@××××××××××.uk> wrote: |
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> On Wed, 7 Sep 2011 19:04:17 -0400, Canek Peláez Valdés wrote: |
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> |
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>> > Putting it on a logical volume is one advantage, allowing /usr to be |
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>> > resized should the need arise. |
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>> |
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>> Why not allow / to be resized entirely? You probably will take the |
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>> machine off-line anyway. |
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> |
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> Because you can't boot from an LV, so you'd than need a separate /boot |
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> and an initramfs. Without LVM, you are unlikely to be able to resize / |
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> or /usr as it is not usually the last partition on the drive. |
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|
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So, you guys want a separated /usr, but don't want a separate /boot. Awesome. |
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>> >> Mounting it read-only |
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>> >> seems the only sensible one, and then I think is better to go all the |
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>> >> way and mount / read-only. |
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>> > |
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>> > Putting /etc on a read-only filesystem seems a really bad idea. |
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>> |
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>> mount -o remount,rw / |
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>> emerge --sync && emerge -uDNv world |
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>> dispatch-conf |
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>> mount -o remount,ro / |
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>> |
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>> Or, if you only want to modify some configuration file (which in a |
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>> sane environment doesn't happen that often): |
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>> |
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>> mount -o remount,rw / |
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>> adduser fulano ... |
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>> mount -o remount,ro / |
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> |
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> This is longer than the init script needed in an initramfs. I wonder what |
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> problems you'd have when booting as the kernel tries to update the likes |
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> of /etc/mtab on a read-only fs. |
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|
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# ls -l /etc/mtab |
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lrwxrwxrwx 1 root root 17 Dec 1 2010 /etc/mtab -> /proc/self/mounts |
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I don't see any problem at all. |
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>> Again, I don't see the reason for a separated /usr. |
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> |
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> That doesn't mean there aren't several valid reasons to do so. |
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I didn't say they were invalid, I say that *I* don't see the reason to |
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separate /usr. The arguments exposed just don't convice me. But |
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anyway, you will be able to do it with an initramfs. |
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>> But *again*, if |
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>> that's what you want, you will be able to do it. You will just need an |
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>> initramfs. |
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> |
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> I neither have nor need one at the moment, which means this update will |
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> break my system. |
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|
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Then don't update. Wanna keep up with upstream? Then accept that |
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sometimes you will need to change your setup, and change how you do |
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stuff. |
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Regards. |
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-- |
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Canek Peláez Valdés |
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Posgrado en Ciencia e Ingeniería de la Computación |
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Universidad Nacional Autónoma de México |
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