how to create minimal root file system [Archive]

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ashwin_karanth

July 16th, 2010, 09:44

hi all..
I am using below steps to create freebsd image, and i ported on s3c2410 board , but in this there is no root file system,how can i create minimal root file system now, using buildworld i can create root file system but it is of arround 200Mb, it's no use for me :(
currently i installed freebsd 9

make kernel-toolchain TARGET=arm
make buildkernel TARGET=arm KERNCONF=LN2410SBC DESTDIR=/root/kernel installkernel
mkimage -A arm -O freebsd -T kernel -C none -a 30008000 -e 300080e0 -n "FreeBSD" -d kernel kernel.boot

the last step i am using linux

aragon

July 16th, 2010, 11:19

Are you using src.conf?

Are you selectively installing kernel modules?

You might want to look at NanoBSD (http://www.freebsd.org/doc/en/articles/nanobsd/index.html). It's i386 only, but the script should give you ideas on how to setup your build, or you could modify it for an Arm build.

ashwin_karanth

July 16th, 2010, 11:42

ya i am created src.conf , but while building i am getting error buddy, i tried with nanobsd i am getting a root file size of around 300Mb, i got only 64Mb Dram in my board, can you help me out to create minimal root file system,

ashwin_karanth

July 16th, 2010, 11:47

hi all..
I am using below steps to create freebsd image, and i ported on s3c2410 board , but in this there is no root file system,how can i create minimal root file system now, using buildworld i can create root file system but it is of arround 200Mb, it's no use for me
currently i installed freebsd 9

make kernel-toolchain TARGET=arm
make buildkernel TARGET=arm KERNCONF=LN2410SBC DESTDIR=/root/kernel installkernel
mkimage -A arm -O freebsd -T kernel -C none -a 30008000 -e 300080e0 -n "FreeBSD" -d kernel kernel.boot

ashwin_karanth

July 16th, 2010, 11:54

i used src.conf, and i am using buildworld for make, i am getting error code as 2
what might be the reason.....?

DutchDaemon

July 16th, 2010, 13:23

Do not double-post, please. Threads merged.

aragon

July 16th, 2010, 20:52

A lot can be removed from the build via src.conf, and even more that can be removed before doing installworld. Here's a src.conf that I use:

WITHOUT_ACCT= true
WITHOUT_ACPI= true
WITHOUT_AMD= true
WITHOUT_APM= true
WITHOUT_AT= true
WITHOUT_ATM= true
WITHOUT_AUDIT= true
#WITHOUT_BIND= true
WITHOUT_BIND_DNSSEC= true
WITHOUT_BIND_ETC= true
WITHOUT_BIND_MTREE= true
WITHOUT_BIND_NAMED= true
WITHOUT_BLUETOOTH= true
WITHOUT_CALENDAR= true
WITHOUT_CDDL= true
WITHOUT_CPP= true
WITHOUT_CTM= true
WITHOUT_CVS= true
WITHOUT_DICT= true
WITHOUT_EXAMPLES= true
WITHOUT_FREEBSD_UPDATE= true
WITHOUT_GAMES= true
WITHOUT_GCOV= true
WITHOUT_GDB= true
WITHOUT_GPIB= true
WITHOUT_GSSAPI= true
WITHOUT_HTML= true
WITHOUT_I4B= true
WITH_IDEA= true
WITHOUT_IPFILTER= true
WITHOUT_IPX= true
WITHOUT_IPX_SUPPORT= true
WITHOUT_JAIL= true
WITHOUT_KERBEROS= true
WITHOUT_KERBEROS_SUPPORT= true
WITHOUT_LEGACY_CONSOLE= true
WITHOUT_LPR= true
WITHOUT_MAKE= true
WITHOUT_NCP= true
WITHOUT_NDIS= true
WITHOUT_NIS= true
WITHOUT_OBJC= true
WITHOUT_PMC= true
WITHOUT_PORTSNAP= true
WITHOUT_PROFILE= true
WITHOUT_QUOTAS= true
WITHOUT_RCMDS= true
WITHOUT_RCS= true
WITHOUT_RESCUE= true
WITHOUT_ROUTED= true
WITHOUT_SENDMAIL= true
WITHOUT_SHAREDOCS= true
WITHOUT_SYSCONS= true
WITHOUT_SYSINSTALL= true
WITHOUT_ZFS= true

For installworld you can add these to the above:

WITHOUT_INSTALLLIB= true
WITHOUT_TOOLCHAIN= true

That should make your image less than 100MB. On my i386 build it comes to about 64 MB.

If you need it a lot smaller than that things get complicated. Flash is cheap - get more. :)

ashwin_karanth

July 17th, 2010, 02:19

K thanks a lot i will try it out

ashwin_karanth

July 17th, 2010, 09:46

hi i included this things /etc/src.conf while building using

make -j4 buildworld TARGET=arm TARGET_ARCH=arm TARGET_CPUTYPE=arm920t
i am getting error like..

echo tblgen:/usr/lib/libstdc++.a>>.depend
make:don't know how to make /usr/obj/arm.arm/usr/home/user/project/head/tmp/legacy/usr/lib/libegacy.a.stop
***error code 2
1 error
***error code 2
1 error
***error code2
1 error

i am doing make from the checkout, can any one help me out to solve this problem.

WITHOUT_ACCT=true
WITHOUT_ACPI=true
WITHOUT_AMD=true
WITHOUT_APM=true
WITHOUT_AT=true
WITHOUT_ATM=true
WITHOUT_AUDIT=true
#WITHOUT_AUTHPF=true
#WITHOUT_BIND=true
WITHOUT_BIND_DNSSEC=true
WITHOUT_BIND_ETC=true
#WITHOUT_BIND_LIBS_LWRES=true
WITHOUT_BIND_NAMED=true
WITHOUT_BIND_UTILS=true
WITHOUT_BLUETOOTH=true
#WITHOUT_BOOT=true
#WITHOUT_BSD_CPIO=true
#WITHOUT_BSNMP=true
WITHOUT_BZIP2=true
WITHOUT_BZIP2_SUPPORT=true
WITHOUT_CALENDAR=true
WITHOUT_CDDL=true
WITHOUT_CRYPT=true
WITHOUT_CTM=true
WITHOUT_CVS=true
WITHOUT_CXX=true
WITHOUT_DICT=true
WITHOUT_EXAMPLES=true
WITHOUT_FLOPPY=true
WITHOUT_FORTH=true
WITHOUT_FREEBSD_UPDATE=true
WITHOUT_GAMES=true
WITHOUT_GCOV=true
WITHOUT_GDB=true
WITHOUT_GNU=true
WITHOUT_GNU_GREP=true
WITHOUT_GNU_SUPPORT=true
WITHOUT_GPIB=true
WITHOUT_GROFF=true
WITHOUT_GSSAPI=true
WITHOUT_HTML=true
WITHOUT_INET6=true
WITHOUT_INET6_SUPPORT=true
WITHOUT_INFO=true
WITHOUT_INSTALLLIB=true
WITHOUT_IPFW=true
WITHOUT_IPX=true
WITHOUT_IPX_SUPPORT=true
WITHOUT_JAIL=true
WITHOUT_KERBEROS=true
WITHOUT_KERBEROS_SUPPORT=true
WITHOUT_KVM_SUPPORT=true
#WITHOUT_LIB32=true
#WITHOUT_LIBTHREAD=true
WITHOUT_LOCALES=true
WITHOUT_LOCATE=true
WITHOUT_LPR=true
WITHOUT_MAIL=true
WITHOUT_MAILWRAPPER=true
#WITHOUT_MAKE=true
WITHOUT_MAN=true
WITHOUT_NCP=true
WITHOUT_NDIS=true
WITHOUT_NETGRAPH=true
WITHOUT_NIS=true
WITHOUT_NLS=true
WITHOUT_NLS_CATALOGS=true
WITHOUR_NS_CACHING=true
WITHOUT_NTP=true
WITHOUT_OBJC=true
WITHOUT_OPENSSH=true
WITHOUT_OPENSSL=true
WITHOUT_PAM=true
WITHOUT_PAM_SUPPORT=true
WITHOUT_PF=true
WITHOUT_PKGTOOLS=true
WITHOUT_PMC=true
WITHOUT_PORTSNAP=true
WITHOUT_PPP=true
WITHOUT_PROFILE=true
WITHOUT_QUOTAS=true
WITHOUT_RCMDS=true
WITHOUT_RCS=true
WITHOUT_RESCUE=true
WITHOUT_ROUTED=true
WITHOUT_SENDMAIL=true
WITHOUT_SETUID_LOGIN=true
WITHOUT_SHAREDOCS=true
WITHOUT_SSP=true
WITHOUT_SYMVER=true
WITHOUT_SYSCONS=true
WITHOUT_SYSINSTALL=true
WITHOUT_TCSH=true
WITHOUT_TELNET=true
WITHOUT_TEXTPROC=true
WITHOUT_WIRELESS=true
WITHOUT_WIRELESS_SUPPORT=true
WITHOUT_WPA_SUPPLICANT_EAPOL=true
WITHOUT_ZONEINFO=true

aragon

July 17th, 2010, 11:31

Try remove WITHOUT_INSTALLLIB.

ashwin_karanth

July 17th, 2010, 13:20

hi that error went out.. getting new error :-(

/usr/obj/arm.arm/usr/home/user/project/head/tmp/usr/bin/ld: libc.so.7:undefined version symbol name fts_open@FBSD_1.0

/usr/obj/arm.arm/usr/home/user/project/head/tmp/usr/bin/ld:failed to set dynamic section sizes:bad value

***Error code 1
ranlib libc.a
1 error
***Error code2
1 error
***Error code 2
1 error
***Error code 2
1 error
***Error code 2
1 error

aragon

July 17th, 2010, 15:08

Remove WITHOUT_SYMVER

ashwin_karanth

July 17th, 2010, 16:58

sorry for disturbing you again..

i am getting some other error i tried to enabel some options but that is not working, i am writing few lines of the errors, the error is

/gnu/usr.bin/sort/../../../contrib/gnu-sort/lib -std=gnu99 -o sort sort.o __fpending.o argmatch.o closeout.o dup-safer.o error.o exitfail.o
fopen-safer.o hard-locale.o human.o long-options.o memcoll.o physmem.o posixver.o quote.o quotearg.o strnlen.o version-etc.o xalloc-die.o
xmalloc.o xmemcoll.o xstrtoul.o strnlen.o umaxtostr.o version-etc.o xalloc-die.o xmalloc.o xmemcoll.o xstrtoul.o xstrtoumax.o
1 error
***Error code 2
1 error
***Error code2
1 error

DutchDaemon

July 17th, 2010, 19:00

ashwin_karanth, your posts are a mess, please use the proper posting tags for system output and commands:
Posting and Editing in the FreeBSD Forums (http://forums.freebsd.org/showthread.php?t=8816)

ashwin_karanth

July 17th, 2010, 19:46

this is the output which i got, so i posted it, i thought some one can understand properly the error....

DutchDaemon

July 17th, 2010, 20:14

Just post output in .. output .. and it'll be much more readable.

aragon

July 18th, 2010, 05:40

Try remove one or all of:

WITHOUT_GNU
WITHOUT_GNU_GREP
WITHOUT_GNU_SUPPORT

ashwin_karanth

July 18th, 2010, 14:07

hi all errors went out..but while doing below step i am getting error message like MFS Image too large, i set MD_ROOT_SIZE 59392 #59Mb

make buildkernel TARGET=arm KERNCONF=LN2410SBC DESTDIR=/root/kernel
installkernel -DNO_MODULES MFS_IMAGE=/usr/home/user/path/to/root.ufs

aragon

July 18th, 2010, 16:17

It would be helpful to create a larger MFS image to see how much over your limit you are.

You need to create another src.conf for installworld as I suggested in post #7. You can remove more components from installworld, especially TOOLCHAIN and INSTALLLIB.

ashwin_karanth

July 19th, 2010, 08:23

hi root file system size may less than the size specified in the LN2410SBC rite..? will it affect while mounting file system on the board...?

ashwin_karanth

July 19th, 2010, 09:01

hi..
In LN2410SBC i have given the size of MD_ROOTSIZE = 15MB, i am getting this error after mounting into board..i created root file system and kernel in one image, i have pasted only error part of the output

Root mount waiting for: usbus0
uhub0: 2 ports with 2 removable, self powered
Trying to mount root from ufs:/dev/md0
ROOT MOUNT ERROR:
If you have invalid mount options, reboot, and first try the following from
the loader prompt:

set vfs.root.mountfrom.options=rw

and then remove invalid mount options from /etc/fstab.

Trying to mount root from ufs:da0s1
ROOT MOUNT ERROR:
If you have invalid mount options, reboot, and first try the following from
the loader prompt:

set vfs.root.mountfrom.options=rw

and then remove invalid mount options from /etc/fstab.

Loader variables:
vfs.root.mountfrom=
vfs.root.mountfrom.options=

Manual root filesystem specification:
<fstype>:<device> Mount <device> using filesystem <fstype>
eg. zfs:tank
eg. ufs:/dev/da0s1a
eg. cd9660:/dev/acd0
This is equivalent to: mount -t cd9660 /dev/acd0 /

? List valid disk boot devices
<empty line> Abort manual input

mountroot>

aragon

July 19th, 2010, 13:54

I'm not familiar with an LN2410SBC or any Arm hardware for that matter...