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Subject : Is
CAP_SYS_RAWIO not permitted during the initrd stage in kernel
2.6.9-22 ? It was permitted in 2.4.20 kernel.
Installing
and booting from iSCSI disk (worked in 2.4.20 , fails in 2.6.9-22 kernel). Hi, I am in the initrd stage of boot . Kernel
2.6.9-22 , Red Hat enterprise linux. During post-install stage and before the first
boot , I modified the initrd to have my iscsi driver and related daemon in
initrd. The installation was made successfully to an iSCSI
disk. Now need to boot through it. During the initrd stage in first-time-boot , my
daemon gets the iSCSI device name from the remote storage server. “ now it wants to pass that information to
iscsi-sfnet.ko via IOCTL” , the ioctl call returns error (-1)
which is EPERM, the perror says—Inappropriate IOCTL”. Why that
error return from sys_ioctl ? Is CAP_SYS_RAWIO or some other capability not permitted
during the initrd stage in kernel 2.6.9-22? I have used the same thing in 2.4.20 kernel . works
great. I can install and also boot from the remote iSCSI disk with
my modified initrd in 2.4.20 kernels. Are the new security
features of 2.6 kernel ( security/seclvl.c) hindering this IOCTL
operation during initrd stage? What is the solution to my problem. Is there a boot-time
parameter ? Please advice . thanks -Vikas |
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