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TRAP 3E\r\nCause\r\n\r\nThe Ultra system fails to boot with TRAP 3E. The system sometimes also displays bad magic number errors.\r\n\r\nThis error is caused by a bad super block on the boot disk. Which, in turn, could have been caused by a SCSI configuration problem.\r\nAction\r\n\r\nTo fix:\r\n\r\n 1.\r\n\r\n Check the SCSI bus for illegal configuration, bad cables, and duplicate SCSI addresses.\r\n 2.\r\n\r\n Boot from CD-ROM as single user.\r\n\r\n OK boot cdrom -sw\r\n\r\n 3.\r\n\r\n Attempt to fsck(1M) boot disk. This could fail with a super block error.\r\n\r\n # fsck /dev/rdsk/device\r\n\r\n 4.\r\n\r\n Find the locations of alternate super blocks. BE SURE TO USE AN UPPERCASE -N. For example:\r\n\r\n # newfs -N /dev/rdsk/c0t0d0s0\r\n /dev/rdsk/c0t0d0s0: 2048960 sectors in 1348 cylinders of 19 tracks, \r\n 80 sectors 1000.5MB in 85 cyl groups (16 c/g, 11.88MB/g, 5696 i/g)\r\n super-block backups (for fsck -F ufs -o b=#) at:\r\n 32, 24432, 48832, 73232, 97632, 122032, 146432, 170832, 195232, 219632,\r\n 244032, 268432, 292832, 317232, 341632, 366032, 390432, 414832, 439232,\r\n 463632, 488032, 512432, 536832, 561232, 585632, 610032, 634432, 658832,\r\n 683232, 707632, 732032, 756432, 778272, 802672, 827072, 851472, 875872,\r\n 900272, 924672, 949072, 973472, 997872, 1022272, 1290672, ...\r\n\r\n 5.\r\n\r\n Using an alternate super block, run fsck(1M) on the disk. You might have to try more than one alternate super block to make this to work. Pick a couple from the beginning, the middle, and the end.\r\n\r\n # fsck -o b=<altblk> /dev/rdsk/c0t0d0s0\r\n\r\n 6.\r\n\r\n The boot block is probably bad too. Restore it while you are booted from the CD-ROM.\r\n\r\n # /usr/sbin/installboot /usr/platform/architecture/lib/fs/ufs/bootblk \r\n /dev/rdsk/c0t0d0s0\r\n\r\n 7.\r\n\r\n Reboot the operating environment.\r\n\r\n # reboot |
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