Re: enable MFS for RAMDISK_CD on amd64
On Mon, May 9, 2011 at 1:49 PM, Stuart Henderson s...@spacehopper.org wrote: Why? One situation that it would be useful is netbooting and using /sbin/restore to rebuild filesystems over the network. restore needs to write temporary data to /tmp but the ramdisks don't have enough space. It would be handy to be able to mount /tmp on mfs. I think it would be better it restore didn't write to /tmp, though. Daniel
Re: enable MFS for RAMDISK_CD on amd64
On Tue, May 10, 2011 at 07:07:43PM -0700, Daniel C. Sinclair wrote: One situation that it would be useful is netbooting and using /sbin/restore to rebuild filesystems over the network. restore needs to write temporary data to /tmp but the ramdisks don't have enough space. It would be handy to be able to mount /tmp on mfs. I think it would be better it restore didn't write to /tmp, though. restore honours TMPDIR. -- Brett Lymn Warning: The information contained in this email and any attached files is confidential to BAE Systems Australia. If you are not the intended recipient, any use, disclosure or copying of this email or any attachments is expressly prohibited. If you have received this email in error, please notify us immediately. VIRUS: Every care has been taken to ensure this email and its attachments are virus free, however, any loss or damage incurred in using this email is not the sender's responsibility. It is your responsibility to ensure virus checks are completed before installing any data sent in this email to your computer.
Re: enable MFS for RAMDISK_CD on amd64
Why?
On 2011-05-09, Ted Roby ted.r...@gmail.com wrote:
This patch enables MFS in RAMDISK_CD, adds the MFS flag to
distrib/special/newfs binary and creates the sbin/mount_mfs link for instbin.
ted dot roby at gmail dot com
Index: distrib/amd64/common/list
===
RCS file: /cvs/src/distrib/amd64/common/list,v
retrieving revision 1.24
diff -u -r1.24 list
--- distrib/amd64/common/list 18 Oct 2010 04:07:49 - 1.24
+++ distrib/amd64/common/list 7 May 2011 22:15:11 -
@@ -40,7 +40,7 @@
LINK instbin sbin/mount_ffs
LINK instbin sbin/reboot sbin/halt
LINK instbin sbin/kbd
-LINK instbin sbin/newfs
+LINK instbin sbin/newfs sbin/mount_mfs
LINK instbin sbin/ping
LINK instbin sbin/restore
LINK instbin sbin/route
Index: distrib/special/newfs/Makefile
===
RCS file: /cvs/src/distrib/special/newfs/Makefile,v
retrieving revision 1.2
diff -u -r1.2 Makefile
--- distrib/special/newfs/Makefile28 Oct 2009 07:36:49 - 1.2
+++ distrib/special/newfs/Makefile7 May 2011 22:15:11 -
@@ -3,7 +3,7 @@
PROG=newfs
SRCS=dkcksum.c getmntopts.c newfs.c mkfs.c
-CFLAGS+= -I${.CURDIR}/../../../sbin/mount
+CFLAGS+=-DMFS -I${.CURDIR}/../../../sbin/mount
Some ramdisks for some arch are tight enough on space that this will
be likely overflow them.
.PATH: ${.CURDIR}/../../../sbin/newfs
.PATH: ${.CURDIR}/../../../sbin/mount
.PATH: ${.CURDIR}/../../../sbin/disklabel
Index: sys/arch/amd64/conf/RAMDISK_CD
===
RCS file: /cvs/src/sys/arch/amd64/conf/RAMDISK_CD,v
retrieving revision 1.116
diff -u -r1.116 RAMDISK_CD
--- sys/arch/amd64/conf/RAMDISK_CD3 Apr 2011 12:32:05 - 1.116
+++ sys/arch/amd64/conf/RAMDISK_CD7 May 2011 22:15:32 -
@@ -15,6 +15,7 @@
option FFS # UFS
option FFS2# UFS2
#option EXT2FS # Linux ext2fs
+option MFS
option NFSCLIENT # Network File System client
Re: enable MFS for RAMDISK_CD on amd64
On Mon, May 09, 2011 at 08:49:17PM +, Stuart Henderson wrote:
Why?
Whyt?++
Ken
On 2011-05-09, Ted Roby ted.r...@gmail.com wrote:
This patch enables MFS in RAMDISK_CD, adds the MFS flag to
distrib/special/newfs binary and creates the sbin/mount_mfs link for
instbin.
ted dot roby at gmail dot com
Index: distrib/amd64/common/list
===
RCS file: /cvs/src/distrib/amd64/common/list,v
retrieving revision 1.24
diff -u -r1.24 list
--- distrib/amd64/common/list 18 Oct 2010 04:07:49 - 1.24
+++ distrib/amd64/common/list 7 May 2011 22:15:11 -
@@ -40,7 +40,7 @@
LINK instbin sbin/mount_ffs
LINK instbin sbin/reboot sbin/halt
LINK instbin sbin/kbd
-LINK instbin sbin/newfs
+LINK instbin sbin/newfs
sbin/mount_mfs
LINK instbin sbin/ping
LINK instbin sbin/restore
LINK instbin sbin/route
Index: distrib/special/newfs/Makefile
===
RCS file: /cvs/src/distrib/special/newfs/Makefile,v
retrieving revision 1.2
diff -u -r1.2 Makefile
--- distrib/special/newfs/Makefile 28 Oct 2009 07:36:49 - 1.2
+++ distrib/special/newfs/Makefile 7 May 2011 22:15:11 -
@@ -3,7 +3,7 @@
PROG= newfs
SRCS= dkcksum.c getmntopts.c newfs.c mkfs.c
-CFLAGS+= -I${.CURDIR}/../../../sbin/mount
+CFLAGS+=-DMFS -I${.CURDIR}/../../../sbin/mount
Some ramdisks for some arch are tight enough on space that this will
be likely overflow them.
.PATH: ${.CURDIR}/../../../sbin/newfs
.PATH: ${.CURDIR}/../../../sbin/mount
.PATH: ${.CURDIR}/../../../sbin/disklabel
Index: sys/arch/amd64/conf/RAMDISK_CD
===
RCS file: /cvs/src/sys/arch/amd64/conf/RAMDISK_CD,v
retrieving revision 1.116
diff -u -r1.116 RAMDISK_CD
--- sys/arch/amd64/conf/RAMDISK_CD 3 Apr 2011 12:32:05 - 1.116
+++ sys/arch/amd64/conf/RAMDISK_CD 7 May 2011 22:15:32 -
@@ -15,6 +15,7 @@
option FFS # UFS
option FFS2# UFS2
#optionEXT2FS # Linux ext2fs
+option MFS
option NFSCLIENT # Network File System client
Re: enable MFS for RAMDISK_CD on amd64
On Mon, May 9, 2011 at 2:49 PM, Stuart Henderson s...@spacehopper.org wrote: Why? I posted it to misc for general archival. When creating diskless systems that do not use pxeboot, I use mfs mount points to construct userland in memory from a bsd.rd kernel. I can do this with a modified rdroot with shadow paths and symlinks. An alternate binary path with the default instbin will suffice while replacing /sbin and /bin paths. Then, any setup media (hd, cd) can be unmounted. Anyone wanting to do the same will find this patch useful.
