From: ning ji <ni...@ho...> - 2011-11-29 19:54:52
|
Hi everyone, I'm new to UML, having issues bring up DHCP for my uml. step 1:./kernel2.6.39 ubda=./debian50.rfs mem=128M eth0=tuntap,,,10.50.183.254 so as you see,kernel: Linux (none) 2.6.39.4 #2 Thu Sep 1 11:25:36 EDT 2011 i686 GNU/Linuxrootfs: Debian-5.0-x86-root_fs step 2:After it boots,(none):/etc/init.d# /etc/init.d/networking restart Configuring network interfaces...Internet Systems Consortium DHCP Client V3.1.1Copyright 2004-2008 Internet Systems Consortium.All rights reserved.For info, please visit http://www.isc.org/sw/dhcp/ [ 3.660000] helper_wait : waitpid process 13629 failed, errno = 10[ 3.660000] * modprobe tun[ 3.660000] * ifconfig tap0 10.50.183.254 netmask 255.255.255.255 up[ 3.660000] * bash -c echo 1 > /proc/sys/net/ipv4/ip_forwardListening on LPF/eth0/ba:b4:8c:0a:56:95Sending on LPF/eth0/ba:b4:8c:0a:56:95Sending on Socket/fallbackDHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8 step 3:On the other hand, if i type these 2 commands,ifconfig eth0 10.50.181.135 netmask 255.255.252.0 up route add default gw 10.50.183.254 eth0 static ip will be up for eht0, i can do ping etc. step 4:Note for the /etc/dhcp3/dhclient.conf, i didn't change anything from the original debian_5.0 rootfs.As i compared with the one from my ubuntu desktop, they look almost the same. Certainly my ubuntu works.(I'm using debian rootfs as none of the ubuntu rootfs i downloaded works.) Having been struggling this for 1 week, any help appreciated ! |
From: Antoine M. <an...@na...> - 2011-11-30 18:50:20
|
On 11/30/2011 02:54 AM, ning ji wrote: > > Hi everyone, > I'm new to UML, having issues bring up DHCP for my uml. > step 1:./kernel2.6.39 ubda=./debian50.rfs mem=128M eth0=tuntap,,,10.50.183.254 Have you tried using a specific tap device here? Like: (...) eth0=tuntap,tap1,fe:f0:00:00:00:01,10.50.183.254 > so as you see,kernel: Linux (none) 2.6.39.4 #2 Thu Sep 1 11:25:36 EDT 2011 i686 GNU/Linuxrootfs: Debian-5.0-x86-root_fs > step 2:After it boots,(none):/etc/init.d# /etc/init.d/networking restart > Configuring network interfaces...Internet Systems Consortium DHCP Client V3.1.1Copyright 2004-2008 Internet Systems Consortium.All rights reserved.For info, please visit http://www.isc.org/sw/dhcp/ > [ 3.660000] helper_wait : waitpid process 13629 failed, errno = 10[ 3.660000] * modprobe tun[ 3.660000] * ifconfig tap0 10.50.183.254 netmask 255.255.255.255 up[ 3.660000] * bash -c echo 1 > /proc/sys/net/ipv4/ip_forwardListening on LPF/eth0/ba:b4:8c:0a:56:95Sending on LPF/eth0/ba:b4:8c:0a:56:95Sending on Socket/fallbackDHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8 I find it impossible to read you emails as the formatting is just terrible. > step 3:On the other hand, if i type these 2 commands,ifconfig eth0 10.50.181.135 netmask 255.255.252.0 up > route add default gw 10.50.183.254 eth0 > static ip will be up for eht0, i can do ping etc. You aren't posting all the commands that you ran, like (re)starting the dhcp daemon, etc. > step 4:Note for the /etc/dhcp3/dhclient.conf, i didn't change anything from the original debian_5.0 rootfs.As i compared with the one from my ubuntu desktop, they look almost the same. Certainly my ubuntu works.(I'm using debian rootfs as none of the ubuntu rootfs i downloaded works.) Since you are referring to the Ubuntu filesystems that I made (from a separate email), let me correct this statement slightly: these filesystems work just fine, but not with UML, as stated on their individual download page (IIRC Lucid is the last Ubuntu release that booted ok with UML) > Having been struggling this for 1 week, any help appreciated ! Have you tried following these instructions: http://uml.devloop.org.uk/howto.html Cheers Antoine > > > > > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure > contains a definitive record of customers, application performance, > security threats, fraudulent activity, and more. Splunk takes this > data and makes sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-novd2d > > > > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user |
From: ning ji <ni...@ho...> - 2011-11-30 23:08:55
|
> Date: Thu, 1 Dec 2011 01:50:08 +0700 > From: an...@na... > To: use...@li... > Subject: Re: [uml-user] Cannot bringup DHCP (2.6.39 kernel + Debian 5.0 rootfs) > > On 11/30/2011 02:54 AM, ning ji wrote: > > > > Hi everyone, > > I'm new to UML, having issues bring up DHCP for my uml. > > step 1:./kernel2.6.39 ubda=./debian50.rfs mem=128M eth0=tuntap,,,10.50.183.254 > Have you tried using a specific tap device here? Like: > (...) eth0=tuntap,tap1,fe:f0:00:00:00:01,10.50.183.254 try that, not working either. > > > so as you see,kernel: Linux (none) 2.6.39.4 #2 Thu Sep 1 11:25:36 EDT 2011 i686 GNU/Linuxrootfs: Debian-5.0-x86-root_fs > > step 2:After it boots,(none):/etc/init.d# /etc/init.d/networking restart > > Configuring network interfaces...Internet Systems Consortium DHCP Client V3.1.1Copyright 2004-2008 Internet Systems Consortium.All rights reserved.For info, please visit http://www.isc.org/sw/dhcp/ > > [ 3.660000] helper_wait : waitpid process 13629 failed, errno = 10[ 3.660000] * modprobe tun[ 3.660000] * ifconfig tap0 10.50.183.254 netmask 255.255.255.255 up[ 3.660000] * bash -c echo 1 > /proc/sys/net/ipv4/ip_forwardListening on LPF/eth0/ba:b4:8c:0a:56:95Sending on LPF/eth0/ba:b4:8c:0a:56:95Sending on Socket/fallbackDHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8 > I find it impossible to read you emails as the formatting is just terrible. sorry, hotmail always gives me trouble. Try again.1. reboot2. at the prompt, type "ifup eth0 -v" debianuml:~# ifup eth0 -v Configuring interface eth0=eth0 (inet) run-parts --verbose /etc/network/if-pre-up.d dhclient3 -pf /var/run/dhclient.eth0.pid -lf /var/lib/dhcp3/dhclient.eth0.leases eth0 Internet Systems Consortium DHCP Client V3.1.1 Copyright 2004-2008 Internet Systems Consortium. All rights reserved. For info, please visit http://www.isc.org/sw/dhcp/ Listening on LPF/eth0/fe:f0:00:00:00:01 Sending on LPF/eth0/fe:f0:00:00:00:01 Sending on Socket/fallback DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 15 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 14 DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7 No DHCPOFFERS received. No working leases in persistent database - sleeping. run-parts --verbose /etc/network/if-up.d run-parts: executing /etc/network/if-up.d/mountnfs debianuml:~# > > > step 3:On the other hand, if i type these 2 commands,ifconfig eth0 10.50.181.135 netmask 255.255.252.0 up > > route add default gw 10.50.183.254 eth0 > > static ip will be up for eht0, i can do ping etc. > You aren't posting all the commands that you ran, like (re)starting the > dhcp daemon, etc. ifup eth0 -vwhich becomesdhclient3 -pf /var/run/dhclient.eth0.pid -lf /var/lib/dhcp3/dhclient.eth0.leases eth0 > > > step 4:Note for the /etc/dhcp3/dhclient.conf, i didn't change anything from the original debian_5.0 rootfs.As i compared with the one from my ubuntu desktop, they look almost the same. Certainly my ubuntu works.(I'm using debian rootfs as none of the ubuntu rootfs i downloaded works.) > Since you are referring to the Ubuntu filesystems that I made (from a > separate email), let me correct this statement slightly: these > filesystems work just fine, but not with UML, as stated on their > individual download page (IIRC Lucid is the last Ubuntu release that > booted ok with UML) > > > Having been struggling this for 1 week, any help appreciated ! > Have you tried following these instructions: > http://uml.devloop.org.uk/howto.html Question here, if uml is running in my desktop, i need to install and run dhcpd in my desktop ?sorry i'm kind of lost, this is in a company, the company has the dhcp server running for all the PCs. > > Cheers > Antoine Thanks again ! > > > > > > > > > > > > > ------------------------------------------------------------------------------ > > All the data continuously generated in your IT infrastructure > > contains a definitive record of customers, application performance, > > security threats, fraudulent activity, and more. Splunk takes this > > data and makes sense of it. IT sense. And common sense. > > http://p.sf.net/sfu/splunk-novd2d > > > > > > > > _______________________________________________ > > User-mode-linux-user mailing list > > Use...@li... > > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure > contains a definitive record of customers, application performance, > security threats, fraudulent activity, and more. Splunk takes this > data and makes sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-novd2d > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user |
From: Jeff D. <jd...@ad...> - 2011-12-01 02:00:59
|
The thing about DHCP is that the protocol is confined to an ethernet broadcast domain, and a TUN/TAP connection to the host is a separate broadcast domain from the LAN. It's a private ethernet with two hosts on it. DHCP will work if one of the following is true: The DHCP server is the UML host and dhcpd is listening on the TAP device a DHCP forwarder, like dhcrelay, is running on the host UML is bridged to the host's eth The bridging option puts the UML on the LAN on a par with any physical system on the ethernet. Jeff |
From: ning ji <ni...@ho...> - 2011-12-01 23:08:06
|
Jeff, i think you are right, but our team roll out the possibility of setting up another DHCP server. After spent hours on the dhcrelay3 and bcrelay, i gave up.(I followed http://r3dux.org/2009/09/how-to-make-virtualbox-use-your-routers-dhcp-to-get-an-ip-address-in-linux/as i cannot find good docs on DHCP for uml using dhcrelay etc.) Linux has a huge problem on clear & good instructions for normal users.I have been coding for 15 years and i cannot make DHCP to work for 1+ week. Checking around, many senior linux friends never touched UML. I'm using static ip for uml now to catch up with the schedule.Would appreciate if you have good step-by-step instructions. Thanks very much ! > Date: Wed, 30 Nov 2011 20:42:29 -0500 > From: jd...@ad... > To: ni...@ho... > CC: an...@na...; use...@li... > Subject: Re: [uml-user] Cannot bringup DHCP (2.6.39 kernel + Debian 5.0 rootfs) > > The thing about DHCP is that the protocol is confined to an ethernet > broadcast domain, and a TUN/TAP connection to the host is a separate > broadcast domain from the LAN. It's a private ethernet with two hosts > on it. > > DHCP will work if one of the following is true: > The DHCP server is the UML host and dhcpd is listening on the > TAP device > a DHCP forwarder, like dhcrelay, is running on the host > UML is bridged to the host's eth > > The bridging option puts the UML on the LAN on a par with any physical > system on the ethernet. > > Jeff |
From: Antoine M. <an...@na...> - 2011-12-01 07:32:46
|
(snip) >>> Having been struggling this for 1 week, any help appreciated ! >> Have you tried following these instructions: >> http://uml.devloop.org.uk/howto.html > Question here, if uml is running in my desktop, i need to install and run dhcpd in my desktop ? If you are following the howto yes. The UML VM must be a on different subnet, routed by the host. >sorry i'm kind of lost, this is in a company, the company has the dhcp server running for all the PCs. If you want to re-use the main dhcp server, you have two options left (as per Jeff's email): * a dhcp forwarder * bridging Antoine >> >> Cheers >> Antoine > Thanks again ! >> >>> >>> >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> All the data continuously generated in your IT infrastructure >>> contains a definitive record of customers, application performance, >>> security threats, fraudulent activity, and more. Splunk takes this >>> data and makes sense of it. IT sense. And common sense. >>> http://p.sf.net/sfu/splunk-novd2d >>> >>> >>> >>> _______________________________________________ >>> User-mode-linux-user mailing list >>> Use...@li... >>> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user >> >> >> ------------------------------------------------------------------------------ >> All the data continuously generated in your IT infrastructure >> contains a definitive record of customers, application performance, >> security threats, fraudulent activity, and more. Splunk takes this >> data and makes sense of it. IT sense. And common sense. >> http://p.sf.net/sfu/splunk-novd2d >> _______________________________________________ >> User-mode-linux-user mailing list >> Use...@li... >> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > |
From: ning ji <ni...@ho...> - 2011-12-01 23:10:12
|
Antoine, We cannot setup another DHCP server to run UML, even if it's not connected to the corporate network.How i wish you have an instruction of dhcp relay for UML in your site, :) Thanks for all the replies ! > Date: Thu, 1 Dec 2011 14:32:32 +0700 > From: an...@na... > To: ni...@ho... > CC: use...@li... > Subject: Re: [uml-user] Cannot bringup DHCP (2.6.39 kernel + Debian 5.0 rootfs) > > (snip) > > >>> Having been struggling this for 1 week, any help appreciated ! > >> Have you tried following these instructions: > >> http://uml.devloop.org.uk/howto.html > > Question here, if uml is running in my desktop, i need to install and run dhcpd in my desktop ? > If you are following the howto yes. The UML VM must be a on different > subnet, routed by the host. > > >sorry i'm kind of lost, this is in a company, the company has the dhcp server running for all the PCs. > If you want to re-use the main dhcp server, you have two options left > (as per Jeff's email): > * a dhcp forwarder > * bridging > > Antoine > > > >> > >> Cheers > >> Antoine > > Thanks again ! > >> > >>> > >>> > >>> > >>> > >>> > >>> ------------------------------------------------------------------------------ > >>> All the data continuously generated in your IT infrastructure > >>> contains a definitive record of customers, application performance, > >>> security threats, fraudulent activity, and more. Splunk takes this > >>> data and makes sense of it. IT sense. And common sense. > >>> http://p.sf.net/sfu/splunk-novd2d > >>> > >>> > >>> > >>> _______________________________________________ > >>> User-mode-linux-user mailing list > >>> Use...@li... > >>> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > >> > >> > >> ------------------------------------------------------------------------------ > >> All the data continuously generated in your IT infrastructure > >> contains a definitive record of customers, application performance, > >> security threats, fraudulent activity, and more. Splunk takes this > >> data and makes sense of it. IT sense. And common sense. > >> http://p.sf.net/sfu/splunk-novd2d > >> _______________________________________________ > >> User-mode-linux-user mailing list > >> Use...@li... > >> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > > > |
From: ning ji <ni...@ho...> - 2011-12-02 21:10:41
|
Guess the answer is yes,but when i run #sudo ./umlinux ubda=./fs6 mem=128M eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & i got this [1]+ Stopped sudo ./umlinux ubda=./fs6 mem=128M eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 Any hints pls ?Thanks ! |
From: Riccardo M. <ric...@gm...> - 2011-12-02 21:15:49
|
Hi Ning Ji, On Fri, Dec 2, 2011 at 22:10, ning ji <ni...@ho...> wrote: > but when i run > > #sudo ./umlinux ubda=./fs6 mem=128M > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & > > i got this > > [1]+ Stopped sudo ./umlinux ubda=./fs6 mem=128M > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 > A programm running in the background must not attempt to perform any I/O to the terminal, otherwise it gets a STOP signal. If you want to run UML in the background you will have to: (warning: untested) 1) redirect the initial boot console output to a file: umlinux .... > boot.log 2) use the "con=..." option to start the Linux consoles in a XTerm, or network port, or anything that does not do I/O in the shell terminal. best regards, Riccardo |
From: ning ji <ni...@ho...> - 2011-12-02 21:44:49
|
yes, when i add "con=pts" it starts working in the background,Thanks very much ! > Date: Fri, 2 Dec 2011 22:15:43 +0100 > Subject: Re: [uml-user] Can i run uml in the background ? > From: ric...@gm... > To: ni...@ho... > CC: use...@li... > > Hi Ning Ji, > > On Fri, Dec 2, 2011 at 22:10, ning ji <ni...@ho...> wrote: > > but when i run > > > > #sudo ./umlinux ubda=./fs6 mem=128M > > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & > > > > i got this > > > > [1]+ Stopped sudo ./umlinux ubda=./fs6 mem=128M > > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 > > > > A programm running in the background must not attempt to perform any > I/O to the terminal, otherwise it gets a STOP signal. > > If you want to run UML in the background you will have to: (warning: untested) > > 1) redirect the initial boot console output to a file: > > umlinux .... > boot.log > > 2) use the "con=..." option to start the Linux consoles in a XTerm, or > network port, or anything that does not do I/O in the shell > terminal. > > best regards, > Riccardo |
From: <cl...@cl...> - 2011-12-02 22:51:51
|
Hello, Screen is often used with uml: For a linux uml binary and uml_basic_squeeze as root file system, you can use screen as below: screen -dmS name_you_want linux ubda=uml_basic_squeeze The screen starts as a daemon, and to bring it back: screen -r name_you_want Once you are in the screen, you can daemonize it again with: Ctrl-A d > Hi Ning Ji, > > On Fri, Dec 2, 2011 at 22:10, ning ji <ni...@ho...> wrote: >> but when i run >> >>  #sudo ./umlinux ubda=./fs6 mem=128M >> eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & >> >> i got this >> >> [1]+  Stopped         sudo ./umlinux ubda=./fs6 >> mem=128M >> eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 >> > > A programm running in the background must not attempt to perform any > I/O to the terminal, otherwise it gets a STOP signal. > > If you want to run UML in the background you will have to: (warning: > untested) > > 1) redirect the initial boot console output to a file: > > umlinux .... > boot.log > > 2) use the "con=..." option to start the Linux consoles in a XTerm, or > network port, or anything that does not do I/O in the shell > terminal. > > best regards, > Riccardo > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure > contains a definitive record of customers, application performance, > security threats, fraudulent activity, and more. Splunk takes this > data and makes sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-novd2d > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > |
From: ning ji <ni...@ho...> - 2011-12-02 22:10:02
|
Thanks for the hint, i'll try it later, :) > Date: Fri, 2 Dec 2011 15:50:59 -0600 > Subject: Re: [uml-user] Can i run uml in the background ? > From: cl...@cl... > To: ric...@gm... > CC: ni...@ho...; use...@li... > > Hello, > Screen is often used with uml: > For a linux uml binary and uml_basic_squeeze as root file system, you can > use screen as below: > > screen -dmS name_you_want linux ubda=uml_basic_squeeze > > The screen starts as a daemon, and to bring it back: > > screen -r name_you_want > > > Once you are in the screen, you can daemonize it again with: > > Ctrl-A d > > > > > > Hi Ning Ji, > > > > On Fri, Dec 2, 2011 at 22:10, ning ji <ni...@ho...> wrote: > >> but when i run > >> > >>  #sudo ./umlinux ubda=./fs6 mem=128M > >> eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & > >> > >> i got this > >> > >> [1]+  Stopped         sudo ./umlinux ubda=./fs6 > >> mem=128M > >> eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 > >> > > > > A programm running in the background must not attempt to perform any > > I/O to the terminal, otherwise it gets a STOP signal. > > > > If you want to run UML in the background you will have to: (warning: > > untested) > > > > 1) redirect the initial boot console output to a file: > > > > umlinux .... > boot.log > > > > 2) use the "con=..." option to start the Linux consoles in a XTerm, or > > network port, or anything that does not do I/O in the shell > > terminal. > > > > best regards, > > Riccardo > > > > ------------------------------------------------------------------------------ > > All the data continuously generated in your IT infrastructure > > contains a definitive record of customers, application performance, > > security threats, fraudulent activity, and more. Splunk takes this > > data and makes sense of it. IT sense. And common sense. > > http://p.sf.net/sfu/splunk-novd2d > > _______________________________________________ > > User-mode-linux-user mailing list > > Use...@li... > > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user > > > |
From: /dev/rob0 <ro...@gm...> - 2011-12-02 21:51:01
|
On Friday 02 December 2011 15:10:35 ning ji wrote: > Guess the answer is yes,but when i run > #sudo ./umlinux ubda=./fs6 mem=128M > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & i got this > [1]+ Stopped sudo ./umlinux ubda=./fs6 mem=128M > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 > > Any hints pls ?Thanks ! Why are you running this as root? There are safe ways to set up networking while maintaining reduced privilege in the UML instance itself. Can you background it as non-root? -- Offlist mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header |
From: ning ji <ni...@ho...> - 2011-12-02 22:39:34
|
without sudo, i got this [ 0.170000] ubda: unknown partition table[ 0.170000] Warning: Assigning a globally valid ethernet address to a device[ 0.170000] You should set the 2nd rightmost bit in the first byte of the MAC,[ 0.170000] i.e. 02:50:f9:00:00:66[ 0.170000] Netdevice 0 (00:50:f9:00:00:66) :[ 0.170000] TUN/TAP backend - IP = 10.50.181.51[ 0.200000] EXT3-fs (ubda): error: couldn't mount because of unsupported optional features (240)[ 0.210000] EXT2-fs (ubda): error: couldn't mount because of unsupported optional features (244)[ 0.220000] EXT4-fs (ubda): INFO: recovery required on readonly filesystem[ 0.220000] EXT4-fs (ubda): write access unavailable, cannot proceed[ 0.300000] UDF-fs: No partition found (1)[ 0.330000] NILFS: Can't find nilfs on dev ubda.[ 0.360000] GFS2: gfs2 mount does not exist[ 0.360000] List of all partitions:[ 0.360000] 6200 100000 ubda driver: uml-blkdev[ 0.360000] No filesystem could mount root, tried: reiserfs ext3 ext2 ext4 squashfs vfat msdos iso9660 ntfs fuseblk udf nilfs2 btrfs gfs2 gfs2meta[ 0.360000] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(98,0)[ 0.360000] 0fc6bedc: [<084d18bc>] dump_stack+0x1c/0x20[ 0.360000] 0fc6bef4: [<084d190d>] panic+0x4d/0x13f[ 0.360000] 0fc6bf28: [<08048ca5>] mount_block_root+0x20d/0x21c[ 0.360000] 0fc6bf78: [<08048d00>] mount_root+0x4c/0x54[ 0.360000] 0fc6bf9c: [<08048e54>] prepare_namespace > From: ro...@gm... > To: use...@li... > Date: Fri, 2 Dec 2011 15:50:50 -0600 > Subject: Re: [uml-user] Can i run uml in the background ? > > On Friday 02 December 2011 15:10:35 ning ji wrote: > > Guess the answer is yes,but when i run > > #sudo ./umlinux ubda=./fs6 mem=128M > > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 & i got this > > [1]+ Stopped sudo ./umlinux ubda=./fs6 mem=128M > > eth0=tuntap,,00:50:F9:00:00:65,10.50.181.51 > > > > Any hints pls ?Thanks ! > > Why are you running this as root? There are safe ways to set up > networking while maintaining reduced privilege in the UML instance > itself. > > Can you background it as non-root? > -- > Offlist mail to this address is discarded unless > "/dev/rob0" or "not-spam" is in Subject: header > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure > contains a definitive record of customers, application performance, > security threats, fraudulent activity, and more. Splunk takes this > data and makes sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-novd2d > _______________________________________________ > User-mode-linux-user mailing list > Use...@li... > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user |
From: richard -r. w. <ric...@gm...> - 2011-12-02 23:08:46
|
On Fri, Dec 2, 2011 at 11:39 PM, ning ji <ni...@ho...> wrote: > without sudo, i got this Is your disk image only root-readable? Nobody runs UML as root. -- Thanks, //richard |