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On Wed, 28 Mar 2012 11:20:25 -0400 |
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Allan Gottlieb <gottlieb@×××.edu> wrote: |
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|
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> On Tue, Mar 27 2012, Alan McKinnon wrote: |
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> |
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> > All you need is a decent amount of free disk space as you will |
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> > shuffle things around just like in that 15 pieces game. |
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> |
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> This sounds encouraging. My disk is less than half full so space is |
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> not an issue. |
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> |
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> > Assuming / is the first (or second) partition on a disk: |
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> |
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> Question. For me, / is actually /dev/sda5 (sda4 is the extended |
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> partition, the three in front are one dell's special, and two for |
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> windows, the latter only used when contacting dell for diagnostics). |
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> But I think this difference is not material. |
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> |
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> > Measure how much data is on the file system. |
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> > Measure how much data is on the /usr file system. |
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> |
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> Right |
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> |
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> > Move partitions after / on the disk out of the way creating enough |
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> > free space to contain current / and /usr. |
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> |
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> Question. /dev/sda7 is LVM and that is used for /usr, /local, et al. |
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> How do I move an LVM partition? I could make plain partitions and |
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> just copy /usr, /opt, et al., each to a separate partition. Is that |
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> the way? |
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> |
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> > Enlarge / partition, enlarge the file system on it, copy contents |
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> > of /usr there. |
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> |
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> / is ext3, which I believe can be extended live. Or do you recommend |
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> using a gentoo install CD (or equivalent)? |
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> |
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> > Arrange the rest of your disk the way you want it (either with or |
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> > without LVM, both are easy enough to do). |
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> > Move the rest of your data back to it's final destination. |
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> > Delete any last remnants of the old /usr partition. |
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> |
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> This part seems straight forward and not scary since I still would |
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> have the newly created and copied /usr, /opt, et al. partitions in |
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> case something goes wrong. |
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> |
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> So the result would be |
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> |
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> / (including /usr) on one partition (not LVM) |
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> /local, /opt et al., each as separate LVs on my recreated LVM |
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> partition |
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> |
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> I believe this is one of the configurations others have adopted, |
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> which I consider a plus. The other favored configuration is to keep |
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> the current partition scheme and use an initramfs via genkernel, |
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> dracut, or Neil's "in kernel config" soln. |
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> |
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> I would suspect there are second order improvements such as moving |
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> /usr/portage and /usr/src to LVM with symlinks left behind in /usr, |
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> but I am now just concerned to see if I have the basic plan correct. |
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> Have I? |
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What you describe sounds ok, but I'd still hesitate to give a definite |
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answer without a little more data. |
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If you send over the output of |
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|
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df -h |
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du -shx for each partition you have |
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fdisk -l |
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pvdisplay |
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vgdisplay |
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lvdisplay |
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I'll be happy to go over the numbers and offer an opinion. |
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-- |
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Alan McKinnnon |
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alan.mckinnon@×××××.com |
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