Hi,
I am having some problems getting a 2.6.14 kernel to run as UML. It
gets to the point where it tries to mount the root file system and
then dies. I have tried running it with:
./linux ubd0=root_fs (I got the FS from the UML website and it is
named root_fs in the same directory as the UML output binary)
./linux ubd0=root_fs root=ubd0
./linux ubd0=root_fs root=ubda
./linux ubd0=root_fs root=/dev/ubda
My host kernel is 2.6.12. I installed UML by downloading a clean
2.6.14 kernel and simply compiling for the UM architecture. I do not
have any special tools installed.
Any ideas what I could be doing wrong? I googled for some answers but
the only things I could find where advising to just add ubd0=<fs
image name>.
Thanks,
Can Sar
[EMAIL PROTECTED]:~/research/linux-2.6$ ./linux
Checking PROT_EXEC mmap in /tmp...OK
Checking for /proc/mm...not found
Checking for the skas3 patch in the host...not found
UML running in SKAS0 mode
[42949372.960000] Checking that ptrace can change system call
numbers...OK
[42949372.960000] Checking syscall emulation patch for ptrace...missing
[42949372.960000] Linux version 2.6.14 ([EMAIL PROTECTED]) (gcc version
3.2.3) #4
Sun Nov 6 13:34:22 PST 2005
[42949372.960000] Built 1 zonelists
[42949372.960000] Kernel command line: root=98:0
[42949372.960000] PID hash table entries: 256 (order: 8, 4096 bytes)
[42949372.960000] Dentry cache hash table entries: 8192 (order: 3, 32768
bytes)
[42949372.960000] Inode-cache hash table entries: 4096 (order: 2, 16384
bytes)
[42949372.960000] Memory: 30348k available
[42949373.230000] Security Framework v1.0.0 initialized
[42949373.230000] Mount-cache hash table entries: 512
[42949373.230000] Checking for host processor cmov support...Yes
[42949373.230000] Checking for host processor xmm support...No
[42949373.230000] Checking that host ptys support output SIGIO...Yes
[42949373.230000] Checking that host ptys support SIGIO on close...No,
enabling workaround
[42949373.230000] Checking for /dev/anon on the host...Not available
(open
failed with errno 2)
[42949373.230000] softlockup thread 0 started up.
[42949373.230000] Linux NoNET1.0 for Linux 2.6
[42949373.230000] Using 2.6 host AIO
[42949373.230000] mconsole (version 2) initialized on
/home/csar/.uml/pEpKnR/mconsole
[42949373.230000] VFS: Disk quotas dquot_6.5.1
[42949373.230000] Dquot-cache hash table entries: 1024 (order 0, 4096
bytes)
[42949373.230000] Initializing Cryptographic API
[42949373.260000] io scheduler noop registered
[42949373.260000] io scheduler anticipatory registered
[42949373.260000] io scheduler deadline registered
[42949373.260000] io scheduler cfq registered
[42949373.260000] RAMDISK driver initialized: 16 RAM disks of 65536K
size
1024 blocksize
[42949373.260000] Initialized stdio console driver
[42949373.260000] Console initialized on /dev/tty0
[42949373.260000] ubda: unknown partition table
[42949373.260000] Kernel panic - not syncing: VFS: Unable to mount
root fs
on unknown-block(98,0)
[42949373.260000]
[42949373.260000] EIP: 0073:[<ffffe410>] CPU: 0 Not tainted ESP:
007b:b7e77f9c EFLAGS: 00000246
[42949373.260000] Not tainted
[42949373.260000] EAX: 00000000 EBX: 00004236 ECX: 00000013 EDX:
00004236
[42949373.260000] ESI: 00004233 EDI: 00000011 EBP: 00000000 DS: 007b ES:
007b
[42949373.260000] 088afb20: [<08085b2d>] notifier_call_chain+0x2d/0x50
[42949373.260000] 088afb30: [<081091e6>] bust_spinlocks+0x46/0x50
[42949373.260000] 088afb40: [<08076160>] panic+0x70/0x110
[42949373.260000] 088afb60: [<08049ac3>] mount_block_root+0xb3/0x120
[42949373.260000] 088afbb0: [<08049cae>] mount_root+0x5e/0x70
[42949373.260000] 088afbc0: [<0804c7c0>] initrd_load+0x80/0x90
[42949373.260000] 088afbd0: [<08049d0c>] prepare_namespace+0x4c/0x130
[42949373.260000] 088afbe4: [<080591a0>] init+0x0/0x160
[42949373.260000] 088afbe8: [<080591a0>] init+0x0/0x160
[42949373.260000] 088afbf0: [<0805920b>] init+0x6b/0x160
[42949373.260000] 088afc04: [<080591a0>] init+0x0/0x160
[42949373.260000] 088afc10: [<0806e257>] run_kernel_thread+0x77/0x80
[42949373.260000] 088afc28: [<080591a0>] init+0x0/0x160
[42949373.260000] 088afc38: [<0806e21f>] run_kernel_thread+0x3f/0x80
[42949373.260000] 088afc90: [<0805e74f>] unblock_signals+0xf/0x20
[42949373.260000] 088afca0: [<08072528>] schedule_tail+0x28/0xf0
[42949373.260000] 088afcd4: [<080591a0>] init+0x0/0x160
[42949373.260000] 088afce0: [<08063dfd>] new_thread_handler+0xcd/0x120
[42949373.260000] 088afce4: [<080591a0>] init+0x0/0x160
[42949373.260000]
[42949373.260000]
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