Remove options (NVNODE, NBUF, and BUFPAGES) for small RAM machines.

These options make extracting binary sets much slower even on miniroot.
Instead, use "options BUFCACHE=5" (use 5% of memory for buffercache) and
also specify "-fno-unwind-tables" for COPTS to shrink INSTALL kernel.

Worth to pullup to netbsd-9.

Holiday food satiation.

branches: 1.14.4;
Disable options NVNODE, NBUF and BUFPAGES in the RAMDISK kernel.

These options were specified in the INSTALL kernel for 4MB machines,
but nowadays even the INSTALL kernel would not boot on such machines
and the RAMDISK kernel assumes the target machine has more memories.
Furthermore, these options makes extracting binary sets much slower
and also could cause "wapbl_register_deallocation: out of resources"
panic during extracting binaries into a 32GB SSD with 4KB fragments.

Should be pulled up to netbsd-6* branches.

branches: 1.13.8; 1.13.14; 1.13.18; 1.13.22; 1.13.32;
Remove unused count from pseudo-device md.

branches: 1.12.6;
Changes to MEMORY_RBFLAGS option:
- renamed to MEMORY_DISK_RBFLAGS to better fit the rest of the
MEMORY_DISK options(4)
- change default value to RB_AUTOBOOT instead of RB_SINGLE, and adapt
the config(5) files accordingly
- document this option inside options(4)

See also http://mail-index.netbsd.org/tech-kern/2008/12/25/msg003924.html

Reviewed by abs@ in private mail.

branches: 1.11.6;
Bump ramdisk size from 1.5M to 1.6M to compensate for recent bloat.

branches: 1.10.104; 1.10.106; 1.10.108; 1.10.110;
Bump ramdisk image size from 1444k to 1500k.

ramdisk image overflew, bump by 4K

Bump ramdisk size.

cosmetic formatting

Rename MEMORY_DISK_SIZE (formerly MINIROOTSIZE) to MEMORY_DISK_ROOT_SIZE,
which was suggested by Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> as
being more consistent with what it's controlling...

Include MFS in the INSTALL kernel for the miniroot install.

branches: 1.4.2;
* rename MINIROOTSIZE to MEMORY_DISK_SIZE, so that all md(4) options
are now consistently named
* fold opt_mdsize.h into opt_md.h

branches: 1.3.2;
Trim down to 1.2MB ramdisk for booting on 4MB machines.

Bump ramdisk to 2MB.

Up-to-date kernels for installation media.

Holiday food satiation.

branches: 1.14.4;
Disable options NVNODE, NBUF and BUFPAGES in the RAMDISK kernel.

These options were specified in the INSTALL kernel for 4MB machines,
but nowadays even the INSTALL kernel would not boot on such machines
and the RAMDISK kernel assumes the target machine has more memories.
Furthermore, these options makes extracting binary sets much slower
and also could cause "wapbl_register_deallocation: out of resources"
panic during extracting binaries into a 32GB SSD with 4KB fragments.

Should be pulled up to netbsd-6* branches.

branches: 1.13.8; 1.13.14; 1.13.18; 1.13.22; 1.13.32;
Remove unused count from pseudo-device md.

branches: 1.12.6;
Changes to MEMORY_RBFLAGS option:
- renamed to MEMORY_DISK_RBFLAGS to better fit the rest of the
MEMORY_DISK options(4)
- change default value to RB_AUTOBOOT instead of RB_SINGLE, and adapt
the config(5) files accordingly
- document this option inside options(4)

See also http://mail-index.netbsd.org/tech-kern/2008/12/25/msg003924.html

Reviewed by abs@ in private mail.

branches: 1.11.6;
Bump ramdisk size from 1.5M to 1.6M to compensate for recent bloat.

branches: 1.10.104; 1.10.106; 1.10.108; 1.10.110;
Bump ramdisk image size from 1444k to 1500k.

ramdisk image overflew, bump by 4K

Bump ramdisk size.

cosmetic formatting

Rename MEMORY_DISK_SIZE (formerly MINIROOTSIZE) to MEMORY_DISK_ROOT_SIZE,
which was suggested by Izumi Tsutsui <tsutsui@ceres.dti.ne.jp> as
being more consistent with what it's controlling...

Include MFS in the INSTALL kernel for the miniroot install.

branches: 1.4.2;
* rename MINIROOTSIZE to MEMORY_DISK_SIZE, so that all md(4) options
are now consistently named
* fold opt_mdsize.h into opt_md.h

branches: 1.3.2;
Trim down to 1.2MB ramdisk for booting on 4MB machines.

Bump ramdisk to 2MB.

Up-to-date kernels for installation media.