Gentoo Archives: gentoo-user

From: Allan Gottlieb <gottlieb@×××.edu>
To: gentoo-user@l.g.o
Subject: [gentoo-user] partitioning an ssd for new installation
Date: Sat, 15 Sep 2012 23:57:13
Message-Id: yu9vcfergdy.fsf@nyu.edu
1 I just received a new laptop (dell 6430s) with a 256GB SSD and naturally
2 want to install gentoo. I have installed gentoo several times but this
3 is my first with an SSD.
4
5 Dell configures a small first partition and places windows on two other
6 partitions (one small; the other the rest of the disk).
7
8 I reinstalled windows shrinking the large partition very considerably (I
9 essentially never use the dell partition or windows; but they are
10 convenient to have if you need service from dell).
11
12 In my current system, I have
13
14 /root "native partition"
15 /usr lvm2
16 /local lvm2
17 /var lvm2
18 /tmp lvm2
19 /opt lvm2
20 /a lvm2
21
22 My plan is to have root+usr on one "native partition" (to appease the
23 oracle at udev) and the rest on lvm2 as in my current configuration.
24
25 Although I will install dracut and perhaps try/use it, I do not want my
26 partitioning scheme to *force* me to use it. I believe combining root
27 and usr (off lvm2) will accomplish this goal.
28
29 I was not surprised to see that the latest manual has root+usr combined,
30 but was surprised that they specify an additional small /boot partition.
31 I had thought that went out of favor a few years ago. Is it back
32 because of the root+usr merge? Do people here recommend a separate
33 /boot?
34
35 I know that it is important to have ssd partitions well aligned. It
36 appears that fdisk is doing this automatically (see below). Does the
37 following partitioning seem OK?
38
39 Disk /dev/sda: 256.1 GB, 256060514304 bytes
40 255 heads, 63 sectors/track, 31130 cylinders, total 500118192 sectors
41 Units = sectors of 1 * 512 = 512 bytes
42 Sector size (logical/physical): 512 bytes / 512 bytes
43 I/O size (minimum/optimal): 512 bytes / 512 bytes
44 Disk identifier: 0x58737050
45
46 Device Boot Start End Blocks Id System
47 /dev/sda1 63 80324 40131 de Dell Utility
48 /dev/sda2 81920 1622015 770048 7 HPFS/NTFS/exFAT
49 /dev/sda3 1622016 64536575 31457280 7 HPFS/NTFS/exFAT
50 /dev/sda4 64536576 500118191 217790808 5 Extended
51 /dev/sda5 * 64538624 127453183 31457280 83 Linux
52 /dev/sda6 127455232 131649535 2097152 82 Linux swap / Solaris
53 /dev/sda7 131651584 341366783 104857600 8e Linux LVM
54
55 thanks,
56 allan

Replies

Subject Author
Re: [gentoo-user] partitioning an ssd for new installation Kerin Millar <kerframil@×××××××××××.uk>
Re: [gentoo-user] partitioning an ssd for new installation Philip Webb <purslow@××××××××.net>