fissioner Posted July 17, 2007 Share Posted July 17, 2007 hey guys i've had a problem for a long while whereby i can boot fine if i boot with the install dvd and ignore the countdown, which then boots my (BIOS chosen) hard drive. if i try to boot without the dvd in or by skipping the dvd drive in the boot sequence, i get an underscore that blinks a couple times and then moves down a line then continues to blink undendingly. there are no errors, just the underscore. this is weird because everything works PERFECTLY if i boot with the dvd in. any ideas? Link to comment https://www.insanelymac.com/forum/topic/57438-can-boot-successfully-with-install-dvd-ow-no/ Share on other sites More sharing options...
Guest Ramm Posted July 17, 2007 Share Posted July 17, 2007 Set your partition as active. Link to comment https://www.insanelymac.com/forum/topic/57438-can-boot-successfully-with-install-dvd-ow-no/#findComment-410223 Share on other sites More sharing options...
fissioner Posted July 18, 2007 Author Share Posted July 18, 2007 more info: the volume i want to boot off of is disk2. here is my diskutil list: xxxxxxxx:~ xxx$ diskutil list /dev/disk0 #: type name size identifier 0: Apple_partition_scheme *76.3 GB disk0 1: Apple_partition_map 31.5 KB disk0s1 2: Apple_HFS xxxxxxxxx 76.2 GB disk0s3 /dev/disk1 #: type name size identifier 0: FDisk_partition_scheme *115.0 GB disk1 1: Apple_HFS xxxxxxxxx 115.0 GB disk1s1 /dev/disk2 #: type name size identifier 0: FDisk_partition_scheme *232.9 GB disk2 1: Apple_HFS xxxxxxxxx 232.9 GB disk2s1 /dev/disk3 #: type name size identifier 0: GUID_partition_scheme *232.9 GB disk3 1: EFI 200.0 MB disk3s1 2: Apple_HFS xxxxxxxxx 232.6 GB disk3s2 /dev/disk4 #: type name size identifier 0: Apple_partition_scheme *4.4 GB disk4 1: Apple_partition_map 31.5 KB disk4s1 2: Apple_HFS xxxxxxxxx 4.4 GB disk4s3 here is fdisk for rdisk2: xxxxxxxx:~ xxx$ sudo fdisk -e /dev/rdisk2 Enter 'help' for information fdisk: 1> print Disk: /dev/rdisk2 geometry: 30401/255/63 [488397168 sectors] Offset: 0 Signature: 0xAA55 Starting Ending #: id cyl hd sec - cyl hd sec [ start - size] ------------------------------------------------------------------------ *1: AF 0 1 1 - 1023 254 63 [ 63 - 488397105] HFS+ 2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused 3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused 4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused fdisk: 1> as you can see, the volume i want to boot has the correct partition set to active... is there something wrong that i'm missing? Link to comment https://www.insanelymac.com/forum/topic/57438-can-boot-successfully-with-install-dvd-ow-no/#findComment-410322 Share on other sites More sharing options...
fissioner Posted July 19, 2007 Author Share Posted July 19, 2007 ok i fixed the problem. i thought that i had already tried updating the MBR, but perhaps i had never saved it when exiting fdisk: > sudo fdisk -e /dev/rdisk2 fdisk: 1> update fdisk: 1> write (and confirm) fdisk: 1> quit MAKE SURE that you have rewritten the machine code to your block... you can easily exit the fdisk interaction without actually updating your MBR http://developer.apple.com/documentation/D...n8/fdisk.8.html Link to comment https://www.insanelymac.com/forum/topic/57438-can-boot-successfully-with-install-dvd-ow-no/#findComment-411252 Share on other sites More sharing options...
Recommended Posts