Re: embedded rootfs utility
Hey Behan, a few more comments... On Fri, Aug 8, 2008 at 11:03 AM, Behan Webster [EMAIL PROTECTED] wrote: Geert Uytterhoeven wrote: Thanks for this useful tool! I'm used to plain debootstrap, but decided to give your elbs-rootfs a try for creating up a mipsel and a powerpc NFS root file system. It worked fine, except for one minor nit. As an NFS root file system is mounted read-only by default, I had to manually do | mount -n proc /proc -t proc | mount -n -o remount -w / before running finish.sh. Perhaps this can be added to the top of finish.sh? Odd. I never had this issue. It has always just worked for me. I had to do this also, and I had to explicitly export PATH to get the finish script to work. Otherwise I dpkg complains. What I probably did differently is that I booted the system with init=/bin/bash on the command line instead of letting it just run init. I needed to do this because if I let it run init, I got complaints about PAM failures when trying to log in as root. How are you booting the system on first run? Also, when booting on something like a 5200 with an uncommon serial ports name (ttyPSC0), I had to manually add the /dev/ttyPSC0 device file before it would boot. Cheers, g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: embedded rootfs utility
Grant Likely wrote: Hey Behan, a few more comments... On Fri, Aug 8, 2008 at 11:03 AM, Behan Webster [EMAIL PROTECTED] wrote: Geert Uytterhoeven wrote: Thanks for this useful tool! I'm used to plain debootstrap, but decided to give your elbs-rootfs a try for creating up a mipsel and a powerpc NFS root file system. It worked fine, except for one minor nit. As an NFS root file system is mounted read-only by default, I had to manually do | mount -n proc /proc -t proc | mount -n -o remount -w / before running finish.sh. Perhaps this can be added to the top of finish.sh? Odd. I never had this issue. It has always just worked for me. I had to do this also, and I had to explicitly export PATH to get the finish script to work. Otherwise I dpkg complains I've also never had this issue, but I will add it to the script. What I probably did differently is that I booted the system with init=/bin/bash on the command line instead of letting it just run init. I needed to do this because if I let it run init, I got complaints about PAM failures when trying to log in as root. How are you booting the system on first run? There's your problem. You may have had pam failures before you used elbs-rootfs, but you shouldn't when using it. My script twiddles with inittab to give you a getty with a bash shell without a password, and then fixes it in the finish.sh script. If you just boot with it normally it should just work. I'm too lazy to type init=/bin/bash, so the script does it for you. :) Also, when booting on something like a 5200 with an uncommon serial ports name (ttyPSC0), I had to manually add the /dev/ttyPSC0 device file before it would boot. You're using an older version then. The latest (v1.2) allows you to specify the serial port/baud rate when running the tool. Behan -- Behan Webster [EMAIL PROTECTED] -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: embedded rootfs utility
Grant Likely wrote: On Thu, Aug 14, 2008 at 8:35 AM, Behan Webster [EMAIL PROTECTED] wrote: Grant Likely wrote: Also, when booting on something like a 5200 with an uncommon serial ports name (ttyPSC0), I had to manually add the /dev/ttyPSC0 device file before it would boot. You're using an older version then. The latest (v1.2) allows you to specify the serial port/baud rate when running the tool. Hmm, I can only find v1.1.2 on your website. Version 1.1.2 of elbs contains v1.2 of the rootfs tool. I suppose I should Sync the version numbers on a release. -- Behan Webster [EMAIL PROTECTED] -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: embedded rootfs utility
Grant Likely wrote: On Thu, Aug 14, 2008 at 1:20 PM, Behan Webster [EMAIL PROTECTED] wrote: Grant Likely wrote: On Thu, Aug 14, 2008 at 8:35 AM, Behan Webster [EMAIL PROTECTED] wrote: Grant Likely wrote: Also, when booting on something like a 5200 with an uncommon serial ports name (ttyPSC0), I had to manually add the /dev/ttyPSC0 device file before it would boot. You're using an older version then. The latest (v1.2) allows you to specify the serial port/baud rate when running the tool. Hmm, I can only find v1.1.2 on your website. Version 1.1.2 of elbs contains v1.2 of the rootfs tool. I suppose I should Sync the version numbers on a release. Okay, then I've still got a problem. I did specify the serial port when running it, and the files in /etc were all set correctly. It was just the /dev/ttyPSC0 device file which was missing I see. I thought MAKEDEV would have done that for you. It appears that MAKEDEV doesn't support ttyPSC0. Yes, I suppose then you would have to make that dev file manually... Best laid plans... -- Behan Webster [EMAIL PROTECTED] -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: embedded rootfs utility
Geert Uytterhoeven wrote: Thanks for this useful tool! I'm used to plain debootstrap, but decided to give your elbs-rootfs a try for creating up a mipsel and a powerpc NFS root file system. It worked fine, except for one minor nit. As an NFS root file system is mounted read-only by default, I had to manually do | mount -n proc /proc -t proc | mount -n -o remount -w / before running finish.sh. Perhaps this can be added to the top of finish.sh? Odd. I never had this issue. It has always just worked for me. None the less, I will add checks for this to the script. Add the end of its execution, finish.sh says: | Feel free to delete /debootstrap and the downloaded packages | # rm -rf /debootstrap | # apt-get clean | Please reboot now | # shutdown -r now Shouldn't it suggest to delete /finish.sh, too? Ah. finish.sh used to delete itself when finished. I removed that while testing, and forgot to put it back in. Indeed you are correct. Anyway, thanks for this tool! I'm glad you are finding it useful. -- Behan Webster [EMAIL PROTECTED] -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: embedded rootfs utility
Hi Behan, On Tue, 29 Jul 2008, Behan Webster wrote: However, most notably it contains a utility called elbs-rootfs which makes it easy to create an embedded rootfs for any architecture supported by the Debian projecy (or Ubuntu Linux). The idea is to get a rootfs up and working quickly via nfs (or a flash drive) which allows you to install any debian package and/or to do native development. This is (not yet) meant as a tool to make your final rootfs fit on a small flash partition. For those of you who are interested, it does the following: builds a first stage debootstrap directory using a dist/mirror of your choice, and then tweaks it so you can boot it natively to be able to run the second stage debootstrap scripts. Yes, you can do all these things manually, however, this does it all for you in a few minutes (with reasonable defaults for available options). The only annoying bit is it must be run as root, as it needs to be able to set file permissions/ownerships and such. For example (as root): # elbs rootfs --arch mips --baud 19200 --dist etch /nfs/myrootfs I: Building rootfs in /nfs/myrootfs I: Installing etch/mips from http://http.us.debian.org/debian snip I: debootstrap succeeded I: MAKEDEV in /nfs/myrootfs/dev snip I: create /nfs/myrootfs/etc/group Boot your target with /nfs/myrootfs as your rootfs, then run the finish script on the target The directory /nfs/myrootfs will now contain a stage-one (unconfigured) debootstrap installation of arch mips from debian/etch, modified to allow you to connect to a serial console ttyS0 at 19200 baud (as specified on the command line above). You then need to boot your target using this rootfs and run the finish.sh script which will complete the installation. # sh /finish.sh You should now have a fully configured rootfs for your target which is capable of native compiling (amongst other things). Thanks for this useful tool! I'm used to plain debootstrap, but decided to give your elbs-rootfs a try for creating up a mipsel and a powerpc NFS root file system. It worked fine, except for one minor nit. As an NFS root file system is mounted read-only by default, I had to manually do | mount -n proc /proc -t proc | mount -n -o remount -w / before running finish.sh. Perhaps this can be added to the top of finish.sh? Add the end of its execution, finish.sh says: | Feel free to delete /debootstrap and the downloaded packages | # rm -rf /debootstrap | # apt-get clean | Please reboot now | # shutdown -r now Shouldn't it suggest to delete /finish.sh, too? Anyway, thanks for this tool! With kind regards, Geert Uytterhoeven Software Architect Sony Techsoft Centre Europe The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium Phone:+32 (0)2 700 8453 Fax: +32 (0)2 700 8622 E-mail: [EMAIL PROTECTED] Internet: http://www.sony-europe.com/ A division of Sony Europe (Belgium) N.V. VAT BE 0413.825.160 · RPR Brussels Fortis 293-0376800-10 GEBA-BE-BB
Re: embedded rootfs utility
On Tue, Jul 29, 2008 at 10:18:37PM -0400, Behan Webster wrote: A quick announcement of the release of elbs, or the Embedded Linux Build System (it seemed like a good name at the time I started writing it...) So far it's just a few utilities that I wrote to make a few of my own projects easier. However, most notably it contains a utility called elbs-rootfs which makes it easy to create an embedded rootfs for any architecture supported by the Debian projecy (or Ubuntu Linux). The idea is to get a rootfs up and working quickly via nfs (or a flash drive) which allows you to install any debian package and/or to do native development. This is (not yet) meant as a tool to make your final rootfs fit on a small flash partition. Very interesting, where can I found it? Can you give me a site to download it? -- Marco Stornelli Embedded Software Engineer CoRiTeL - Consorzio di Ricerca sulle Telecomunicazioni http://www.coritel.it [EMAIL PROTECTED] +39 06 72582838 -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: embedded rootfs utility
Marco Stornelli wrote: On Tue, Jul 29, 2008 at 10:18:37PM -0400, Behan Webster wrote: A quick announcement of the release of elbs, or the Embedded Linux Build System (it seemed like a good name at the time I started writing it...) So far it's just a few utilities that I wrote to make a few of my own projects easier. However, most notably it contains a utility called elbs-rootfs which makes it easy to create an embedded rootfs for any architecture supported by the Debian projecy (or Ubuntu Linux). The idea is to get a rootfs up and working quickly via nfs (or a flash drive) which allows you to install any debian package and/or to do native development. This is (not yet) meant as a tool to make your final rootfs fit on a small flash partition. Very interesting, where can I found it? Can you give me a site to download it? It's listed near the bottom of the announcement. You can find elbs at http://debian.websterwood.com/elbs/ Enjoy. Behan -- Behan Webster [EMAIL PROTECTED] -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
