Karen Xie wrote: > Hi, > > Data digest is always offered as None, even for iBFT based boot > sessions started by iscsistart. I was trying to boot RHEL5 U3, and it > installs and boots fine to the iSCSI LUN, with Header digest on, and > Data digest off.
Data Digests are not supported in RHEL 5. > > But if the Target always requires Data digests on, the login will fail > with a non-retryable login failure error. > > My suggestion would be to always offer Header and Data digests, with a > preference for them off, atleast in the boot scenario, since we don't > know what the target will require, and the user does not have any > means of configuring it with configuration files, for the boot case. > > I edited the iscsistart.c in the 2.0-870.3, and added the default > behavior to offer Header and Data digests as None,CRC32C, and it boots > fine after that. > > Also noticed another issue on RHEL 5 U3, where iscsistart looks for / > dev/mem, and the mkinitrd on that does not create it dynamically after The iscsistart from RHEL5 should not look in /dev/mem. It should always just use the iscsi ibft sysfs module. The open-iscsi.org git one should also use the ibft module now too. The older open-iscsi.org releases would use /dev/mem. > mounting /dev on tmpfs. Edited the init script in the initrd and > rebuilt it for that. > > There's probably a better place to put these additions, but to affect > the default behavior only in the boot case, I put it here. > > Here's the diff for iscsistart.c on the git code as of today > > $ diff -p open-iscsi/usr/iscsistart.c iscsistart.c > *** open-iscsi/usr/iscsistart.c 2009-04-09 13:29:10.000000000 +0530 > --- iscsistart.c 2009-04-09 13:20:10.000000000 +0530 > *************** static int setup_session(void) > *** 182,187 **** > --- 182,190 ---- > strlcpy((char *)auth->password_in, context- >> chap_password_in, > sizeof(context->chap_password_in)); > auth->password_in_length = strlen((char *)auth- >> password_in); > + // always offer both for boot targets.. Use C style comments like in the kernel. > + config_rec.conn[0].iscsi.HeaderDigest = > CONFIG_DIGEST_PREFER_OFF; > + config_rec.conn[0].iscsi.DataDigest = > CONFIG_DIGEST_PREFER_OFF; > > rc2 = login_session(); > if (rc2) > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "open-iscsi" group. To post to this group, send email to open-iscsi@googlegroups.com To unsubscribe from this group, send email to open-iscsi+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/open-iscsi -~----------~----~----~----~------~----~------~--~---
