Linux boot problem

Marcus Hähnel mhaehnel at
Thu Feb 5 09:34:30 CET 2015


On 2015-02-05 05:57, Gayathri Nagarajan wrote:
> Upon the boot of l4linux iso image using QEMU, I got the following:
> vmlinuz | RAMDISK: ext2 filesystem found at block 0
> vmlinuz | RAMDISK: Loading 3072KiB [1 disk] into ram disk... done.
> vmlinuz | EXT4-fs (ram0): couldn't mount as ext3 due to feature
> incompatibilities
> vmlinuz | EXT4-fs (ram0): mounting ext2 file system using the ext4
> subsystem
> vmlinuz | EXT4-fs (ram0): mounted filesystem without journal. Opts:
> (null)
> vmlinuz | VFS: Mounted root (ext2 filesystem) on device 1:0.
> vmlinuz | Freeing unused kernel memory: 144K (00709000 - 0072d000)
> vmlinuz | Clocksource tsc unstable (delta = 3346692958 ns)
> vmlinuz | /bin/sh: can't access tty; job control turned off 
> The script is below:
> //l4linux.cfg:
> L4.default_loader:start({}, "rom/vmlinuz mem=64M console=ttyLv0
> l4x_rd=rom/ramdisk-x86.rd root=1:0 ramdisk_size=4000 init=/bin/sh"); 

Your /bin/sh obviously starts, as it outputs the "can't access tty" 
warning (which is in this case normal and not an error!).

You did not pass the log capability to L4Linux. Because of this it will 
not receive your keyboard input. Please pass this capability (see 
example files in L4Re conf/examples/l4lx.conf).

Best regards,

- Marcus

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