Hernandez, Eli wrote: > Guys, > > Now I'm getting a "Kernel panic - not syncing: VFS: Unable to mount > root fs on Unknown block..." error. Any idea what have I done wrong? > > Thanks, > > Eli > It seems that it is caused by incorrect kernel command line. Could you help to check that rootdelay=10 is added and "root=/dev/sdx" is set correctly?
Thanks. -- vivian -----Original Message----- > From: Zhang, Vivian > Sent: Wednesday, April 22, 2009 11:09 PM > To: Hernandez, Eli; Wang, Jing J; Tzeng, Tonny; [email protected] > Subject: RE: Developer Moblin2 image > > Hernandez, Eli wrote: >> Can you guys provide additional details on how to "boot and install" >> from a live image off a USB stick onto another USB stick? >> >> A) Which live image should be installed in initial USB thumb drive? >> (LiveCD or LiveUSB) I currently have >> "moblin-netbook-core-developer-alpha2-20090311" and used UNetbootin >> to copy/burn image into my USB thumb drive. >> > The two types - LiveCD and LiveUSB are both ok. > >> B) How should the Live Image be burned on initial USB thumb drive? >> (In windows only UNetBootin works for me) >> > You can use "dd if=xxx.img of=/dev/sdx" command on linux to burn the > image. > >> C) What boot option should I select to boot from initial USB on my >> netbook? (netbook has windows/xp on HD (c: drive) which I want to >> keep) >> >> D) When and to what grub.conf file should I add "rootdelay=10" (only >> see /usr/lib/anaconda-runtime/boot/grub.conf running off live image >> boot) E) At what point should I modify /etc/fstab? Should /dev/root >> entry be changed? If so what should it look like? It now has >> "/dev/root on / type ext3 (rw,noatime)" or should a new entry >> "rootfs" be added to the filesystem table configuration. If so, how >> should the new entry look like? >> > You should boot from the initial usb with moblin live image and run > "Boot and install" grub option to start the install. > After you installed the moblin to another usb stick successfully, you > can mount the partitions of that USB disk #mount /dev/sdx2 > /mnt/sysimage #mount /dev/sdx1 /mnt/sysimage/boot" > And then modify the grub.conf ( /mnt/sysimage/boot/grub.conf) and > fstab (/mnt/sysimage/etc/fstab) for the installed image on your usb > disk. For grub.conf, add "rootdelay=8" and modify "root=/dev/sdx" to > the correct device name in kernel command line > For fstab, make sure it use the correct device name. > >> F) Also at what point I should connect (make available) the USB thumb >> drive for the Moblin installation target? >> >> Your help is greatly appreciated. >> BTW: Very good info is flowing on the Moblin project, keep up the >> good work. >> > >> Thanks, >> >> Eli >> >> PS: My netbook BIOS is set to boot off USB drive. >> >> >> >> -----Original Message----- >> From: Hernandez, Eli >> Sent: Monday, April 20, 2009 6:55 PM >> To: Wang, Jing J; Tzeng, Tonny; [email protected] >> Subject: RE: Developer Moblin2 image >> >> Tonny, Jing, >> >> Thanks for the advise I will install Moblin2 to USB key and will let >> you know how it goes. >> >> >> Eli >> >> >> -----Original Message----- >> From: Wang, Jing J >> Sent: Monday, April 20, 2009 5:57 PM >> To: Tzeng, Tonny; Hernandez, Eli; [email protected] >> Subject: RE: Developer Moblin2 image >> >> Talking about Moblin installation to another USB, I am making one >> with Vivan's help. In my case, in addition to the tweaks as Tonny >> said, I updated "root=" from "/dev/sdc3" to "/dev/sdb3". It is based >> on what many disks on your target platform. >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Tzeng, Tonny Sent: 2009年4月21日 8:41 >> To: Hernandez, Eli; [email protected] >> Subject: Re: [Moblin Dev] Developer Moblin2 image >> >> Hi Eli, >> >> Moblin supports two types of Live images - LiveCD and LiveUSB, only >> LiveUSB images have persistent (i.e. overlay) capability, and it >> sounds the pre-built development image is a LiveCD image, so you may >> need to install to your local hard drive to make any changes. >> >> The "Boot and Install" to another USB stick or external USB disks are >> not supported at the moment, however you could still workaround it by >> installing to a USB key and adding 'rootdelay=x" (where x is the >> delay time in seconds, in my case, I use 10) to the kernel command >> line in grub.conf, and edit the rootfs in the /etc/fstab to the >> correct device manually to boot it successfully from a USB based >> device. FYI. >> >> Best Regards, >> Tonny >> -----Original Message----- >> From: Hernandez, Eli >> Sent: Tuesday, April 21, 2009 1:44 AM >> To: Tzeng, Tonny; [email protected] >> Subject: RE: Developer Moblin2 image >> >> Tonny, thanks. >> >> >> Looks like any changes to Live Image for Moblin2 are not persistent - >> do not see dev changes/setup after boot. Is there a Live image which >> will take in and make changes persist across boots? >> >> Another question I have is whether a LIVE image from USB can "boot >> and Install" to another USB stick? >> >> Thanks, >> >> Eli >> >> >> -----Original Message----- >> From: Tzeng, Tonny >> Sent: Monday, April 20, 2009 12:08 AM >> To: Hernandez, Eli; [email protected] >> Subject: RE: Developer Moblin2 image >> >> Hi Eli, >> >> You could install the development image as a starting point as most >> of the build tools and libraries are there. Please reference the >> Moblin SDK page http://moblin.org/documentation/moblin-sdk for more >> detail instructions. FYI. >> >> Best Regards, >> Tonny >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Hernandez, Eli Sent: Saturday, April 18, 2009 4:43 AM >> To: [email protected] >> Subject: [Moblin Dev] Developer Moblin2 image >> >> Hello All, >> >> I'm new to Moblin and would like to start developing Clutter based UI >> utilities; i.e. Microphone off/on button, custom progress indicator, >> others. Can anyone please advise what will be most appropriate dev >> env to start with? >> >> Also is there a Moblin2 image to get which would include such dev >> env? (e.g. gcc compiler, libs, plugins, etc.) >> >> Thanks >> >> Eli >> >> _______________________________________________ >> Moblin dev Mailing List >> [email protected] >> >> To manage or unsubscribe from this mailing list visit: >> https://lists.moblin.org/mailman/listinfo/dev or your user account on >> http://moblin.org once logged in. >> >> For more information on the Moblin Developer Mailing lists visit: >> http://moblin.org/community/mailing-lists >> _______________________________________________ >> Moblin dev Mailing List >> [email protected] >> >> To manage or unsubscribe from this mailing list visit: >> https://lists.moblin.org/mailman/listinfo/dev or your user account on >> http://moblin.org once logged in. >> >> For more information on the Moblin Developer Mailing lists visit: >> http://moblin.org/community/mailing-lists >> _______________________________________________ >> Moblin dev Mailing List >> [email protected] >> >> To manage or unsubscribe from this mailing list visit: >> https://lists.moblin.org/mailman/listinfo/dev or your user account on >> http://moblin.org once logged in. >> >> For more information on the Moblin Developer Mailing lists visit: >> http://moblin.org/community/mailing-lists _______________________________________________ Moblin dev Mailing List [email protected] To manage or unsubscribe from this mailing list visit: https://lists.moblin.org/mailman/listinfo/dev or your user account on http://moblin.org once logged in. For more information on the Moblin Developer Mailing lists visit: http://moblin.org/community/mailing-lists
