marc@jahangir.UUCP (Marc Rossner) (02/12/91)
I am running ISC 2.2 with two hard disks as such: disk0: root and /usr filesystems disk1 (added later): /usr2 filesystem My problem is that now I would like to put the root and /usr filesystems on the second disk (because it is twice as big as the first and I need the space under /usr for software that automatically looks there). The COMBINED space on disk0 is just about right for a single /usr/spool filesystem for my news articles (which now live on disk1), but the size of the current /usr is too small, so I need to coalesce disk0 into a single file system. Anyone have any suggestions about how to do this smoothly? As far as I can see I'll have to reinstall the whole system from the original ISC disks (after switching the disk order on hardware) and then reload my stuff. Any way to do this without starting with a clean machine? Marc Rossner jahangir!marc@uunet.uu.net
brando@uicsl.csl.uiuc.edu (Brandon Brown) (02/12/91)
marc@jahangir.UUCP (Marc Rossner) writes: >My problem is that now I would like to put the root and /usr filesystems >on the second disk (because it is twice as big as the first and I need >the space under /usr for software that automatically looks there). I think your basic problem is that you have to have a bootable Unix partition on the primary drive. I think the best you can do is to create a small Unix partition on drive 0 for root, and then partition the second drive with the entire drive for /usr. Then, the left over space from drive 0 could be your /usr/spool.... [Yes, I read this paragraph....] >The COMBINED space on disk0 is just about right for a single /usr/spool >filesystem for my news articles (which now live on disk1), but the >size of the current /usr is too small, so I need to coalesce disk0 into >a single file system. +-----------------------------------------------------------------------------+ | Brandon Brown | Internet: brando@uicsl.csl.uiuc.edu | | Coordinated Science Laboratory | UUCP: uiucuxc!addamax!brando!brown | | University of Illinois | CompuServe: 73040,447 | | Urbana, IL 61801 | GEnie: xmg23356, macbrando | +-----------------------------------------------------------------------------+
nvk@ddsw1.MCS.COM (Norman Kohn) (02/17/91)
In article <528@jahangir.UUCP> marc@jahangir.UUCP (Marc Rossner) writes: >My problem is that now I would like to put the root and /usr filesystems >on the second disk (because it is twice as big as the first and I need >the space under /usr for software that automatically looks there). > > >The COMBINED space on disk0 is just about right for a single /usr/spool >filesystem for my news articles (which now live on disk1), but the >size of the current /usr is too small, so I need to coalesce disk0 into >a single file system. > >Anyone have any suggestions about how to do this smoothly? As far as I can >see I'll have to reinstall the whole system from the original ISC disks >(after switching the disk order on hardware) and then reload my stuff. Any >way to do this without starting with a clean machine? Yes, but you may find it's not worth the trouble. 1) BACK UP. At least: back up enough to let you play with the partitions on your larger drive. 2) In the situation you describe, you really should make your larger drive drive0. 3) Delete, using mkpart, the first partition or two on your larger drive (you did back everything up,didn't you? Did you check that the backups are readable?) 4) create new root and /usr partitions on drive1. (mkpart, mkfs, labelit) Write the boot block, using mkpart. Copy root and /usr to the new partitions, using cpio. Look at the INSTALL script on the boot floppy. 5) Take everything apart, make this drive drive0, and see if you can boot. 6) Put things back together, create/populate the other partitions as needed. This approach requires care, time, good backups, and spare disk capacity. While you're at it, consider adding swap space on the new drive1. If you plan carefully, the only one of the distribution floppies that you'll need is the boot floppy; and, if you're really lucky and careful, you may be able to avoid having to boot from floppy in this exercise. -- Norman Kohn | ...ddsw1!nvk Chicago, Il. | days/ans svc: (312) 650-6840 | eves: (312) 373-0564