[PLUG] Partition analysis
Richard C. Steffens
rsteff at comcast.net
Sat Oct 7 03:42:42 UTC 2006
Rich Shepard wrote:
> On Fri, 6 Oct 2006, Richard C. Steffens wrote:
>> /dev/hda2 * 200 2810 20972857+ 83 Linux
>> I'm not sure why hda2 is as big as it is.
> What do you see in /etc/fstab? That relates the partition to the
> filesystem mounted on it. It will tell you what is assigned where.
rsteff at Moonguide:~> cat /etc/fstab
/dev/hda5 / reiserfs acl,user_xattr 1 1
/dev/hda6 /home reiserfs acl,user_xattr 1 2
/dev/hda1 swap swap defaults 0 0
/dev/hdb1 /home/rsteff/2ndDrive reiserfs acl,user_xattr 1 2
proc /proc proc defaults 0 0
sysfs /sys sysfs noauto 0 0
debugfs /sys/kernel/debug debugfs noauto 0 0
usbfs /proc/bus/usb usbfs noauto 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0
/dev/fd0 /media/floppy auto noauto,user,sync 0 0
> Even better is to type 'df -h'. This shows the partition, mount point,
> and size.
rsteff at Moonguide:~> df -h
Filesystem Size Used Avail Use% Mounted on
/dev/hda5 14G 12G 2.2G 85% /
udev 507M 160K 506M 1% /dev
/dev/hda6 21G 14G 7.2G 66% /home
/dev/hdb1 9.6G 4.0G 5.7G 42% /home/rsteff/2ndDrive
For example, my server/workstation is set up this way:
>
> Filesystem Size Used Avail Use% Mounted on
<...>
> /dev/hda2 55M 40M 16M 72% /boot
Odd. /dev/hda2 doesn't show up in these lists on my machine, but it does
with fdisk, and the machine boots.
> Note that /boot takes only 16M (of 55 available); but that's for
> Slackware. The /vm partition is where VMware lives.
>
>> So, before I go messing up the partition table, what's a reasonable size
>> for the boot partition?
>
> Depending on the number of kernels you want available, and their
> compression, you could probably be well servered with a 25M /boot.
Sounds like I could recover 19.5 GB, easily. But I guess I should
understand why it's not showing up in fstab or with df before I go
adjusting things.
--
Regards,
Dick Steffens
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