On Sat, 13 Aug 2005, Kwan Lowe wrote:
> > What I plan to do is replace /dev/hda5 with a smaller partition, and use the
> > newly-freed space to hold /export/media/mp3 (5.3GB). /export currently has
> > about 900MB free space; moving the MP3s to their own partition will increase
> > /export's free space to over 6 gigs.
> >
> > My plan of attack is this:
> >
> > *DISABLE NIGHTLY BACKUP*
> > delete hda5 (renumbers hda6-hda12 to hda5-hda11)
> > create new partition hda12 cylinders 8000-12000 for /mnt/old (>= 30G)
> > create new partition hda13 cylinders 12001-15017 for /export/music/mp3
> > write & exit
> > modify /etc/fstab, /etc/auto.misc & decr any partition # > 5 (hda5 -> hda12
> > but comment it out)
> > reboot into runlevel 1
> > mkfs -t reiserfs /dev/hda12
> > mkfs -t reiserfs /dev/hda13
> > uncomment hda5 in /etc/fstab
> > add hda13 (/export/music/mp3) to /etc/auto.misc
> > copy /dev/hdb5 (/mnt/temp) -> /dev/hda12 (/mnt/old)
> > copy /export/media/mp3 -> /dev/hda13 (/mnt/temp)
> > rm -r /export/media/mp3
> > mkdir /export/media/mp3
> > reboot
> > *RE-ENABLE BACKUP*
> > enjoy!
> >
> > Is there a tool that'll resize a partition without changing its numbering?
> > That would make things simpler. If not, have I missed any steps?
>
> A couple things that might be problematic:
>
> Check if your bootloader is using disklabels rather than hard partitions
> for the filesystems.
I tried. As I back up hda -> hdb nightly, they are bit-for-bit identical,
and the OS balks at having two partitions with the same label. It would be
easier if it worked. :-(
> Re-writing a partition map where you have modified partition sizes can zap
> everything on the disk. (!!!)
What do you mean? Simply adding or deleting a partition? I've done that
many times.
> BTW, have you considered using LVM instead? It's very easy to configure
> and helps avoid this problem in the future. I put up some notes at
> http://www.digitalhermit.com/linux/lvm .
Thanks.
--
-eben ebQenW1@EtaRmpTabYayU.rIr.OcoPm home.tampabay.rr.com/hactar
This message was created using recycled electrons.
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