Ubuntu / Apple :: Can No Longer Boot Into Mac Partition
Dec 19, 2010
I installed ubuntu onto a 20gb partition I created on my Macbook pro. Installation went great, but now I can no longer boot into my Mac partition. When booting up if I hold the option key, all that shows up is a lock icon with a white area below which I can type things into. Nothing happens if I do, and there are not hdd showing. The Mac partition is an option on my grub menu, however it hangs when selected and does not end up loading.
Note: I am on vacation from school at the moment and my live cds for Mac are in my dorm.
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Dec 2, 2010
I booted my laptop up this morning to find that Ubuntu 10.10 will no longer boot. Here is some background. I have a Raid 0 setup with sda and sdb. For the last day or two upon boot, it was asking me to run some file system checks (hind sight I should have just sucked it up and wait for it) but I canceled out of them as I have been extremely busy. Also, I upgraded my kernel to the latest available from the repos. I am not sure if the kernel upgrade has anything to do with it or just coincidence. I have booted up with a live distro on a USB stick and here is what I am seeing:
Code:
root@bt:/dev# ls -alh sd*
brw-rw---- 1 root disk 9, 127 Dec 2 10:44 sda
brw-rw---- 1 root disk 9, 126 Dec 2 10:44 sda1
brw-rw---- 1 root disk 8, 16 Dec 2 10:41 sdb
brw-rw---- 1 root disk 8, 32 Dec 2 10:41 sdc
brw-rw---- 1 root disk 8, 33 Dec 2 10:41 sdc1
brw-rw---- 1 root disk 8, 34 Dec 2 11:06 sdc2
brw-rw---- 1 root disk 8, 37 Dec 2 10:41 sdc5
root@bt:/dev# fdisk -l
Disk /dev/sdb: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00000000
Disk /dev/sdb doesn't contain a valid partition table
Disk /dev/sdc: 16.1 GB, 16125001728 bytes
255 heads, 63 sectors/track, 1960 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x00004790
Device Boot Start End Blocks Id System
/dev/sdc1 1 1872 15036808+ 83 Linux
/dev/sdc2 1873 1960 706860 5 Extended
/dev/sdc5 1873 1960 706828+ 82 Linux swap / Solaris
So I am able to see sda in /dev but fdisk does not see it. When looking at gparted, it only is able to look at sdb and sdc (my usb stick). The weird thing is that I also have Windows 7 installed on this raid and it is able to boot without any issues so I know the entire sda hasn't died on me.
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May 16, 2010
I'm currently trying to mount a hfs partition at boot as part of my quest to have a shared music folder across ubuntu and OSX. Here's the output of fdisk -l
Code:
WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted.
[code]...
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Jan 20, 2010
when i installed it the windows 7 Partition no longer works. I can see the windows 7 partition but when i click on it, it just reloads the grub boot loader. Im in college and need the windows 7 partition.
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Apr 30, 2010
I am dual booting Ubuntu 9.10 with ext4 and OS X with hfs+, and I'm getting tired of having to go through Open Firmware, rEFIt, and GRUB to boot to Ubuntu by default. I've done a lot of digging, and my results appear to be inconclusive. I have, however, been able to hypothesize that the reason that I cannot set my ext4 partition as the Startup Disk (via OS X settings) is because OS X does not know how to read ext4. I believe that the Startup Disk settings work by writing to Open Firmware, so I'm thinking that maybe something else would be able to as well, preferably something that is capable of reading ext4.
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Jun 28, 2010
I want to dual boot mac and ubuntu. Now, if I want to remove the ubuntu partion, how do I do so? (I have not yet installed Ubuntu)
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Aug 30, 2010
So I repartitioned my mac hard drive using the disk utility in my mac os. Shrink the mac HD and created a new partition for ubuntu. I installed Ubuntu and everything works fine and it was be able to boot back into mac yesterday. However, this morning, when I was holding down the ALT key at startup trying to go into my mac, no boot options come up, it automatically goes into the ubuntu boot option (grub 2) and i tried to go into the mac osx on sda2 from grub2 but it'll take a very long time and nothing boots up. It just says 'waiting for root devices'. Do I need to insert the mac cd and try to repair the system? All my files and partition are still there so I think its not completely gone.
ps. I have the newest macbook version (6.1?)
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Nov 13, 2010
I've been tinkering for over a week to try and get a functioning triple boot + shared data working. i've hit a road block. i'm using reFIt with SnowLeopard/W7/10.10. i can't get into ubuntu
*** Report for internal hard disk ***
Current GPT partition table:
# Start LBA End LBA Type
1 40 409639 EFI System (FAT)
2 409640 390772495 Mac OS X HFS+
3 391034640 781659639 Basic Data
[Code].....
OSX and Windows are fine. but whenever i select linux, it boots directly into windows. i'm hoping i don't need to install GRUB2 to the windows partition as that would defeat the purpose of reFIt (would it not?)
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Aug 21, 2010
I'm not sure if I have a hardware or OS problem. Firewire on my old G3 iMac has stopped working. Previously I've used a scanner and an external hard drive (Iomega eGo) without problems while running Lucid. Now neither works with the iMac, though they both work when connected to a PC. Both the PC and the iMac are running the latest versions of Lucid.
I can't tell when the problem began since I don't use the scanner or hard drive that often. I did try booting using the live 10.04 CD for PowerPC and had no joy with either device.The LCD on the hard drive lights when connected to the firewire port so power is coming through. The scanner has its own power supply.Checking with lsmod I see that both the modules ieee1394 and ohci1394 are loaded.I suspect it's a problem with the hardware. Does any one have an idea how I can go about verifying that? I'd hate to bin an old faithful without first checking everything out.
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Oct 30, 2010
I've been using Ubuntu 10.10 for just under a week. Recently, a partition called 'Data' has disappeared, and all my music and documents along with it. The folder is not to be seen in Places or on my desktop. My only way of finding it is to go to terminal. But when I try to open it there I get an error saying I don't have permission to read it. In Puppy Linux and SliTaz I can easily find the partition and read it. What should I do to bring it back in Ubuntu?
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Jul 3, 2011
When my Iphone had the 4.2.1 firmware it mounted just fine with Ubuntu, OK sure it took a download of libimobiledevice1 and some other libraries but it worked, and sync'd just fine with Rhythmbox. But, as all manufacturers do, they have released a superior new OS for the phone which fixes all those annoying little bug. I have read from 4.3.2 they changed the itunes database version to an updated one. Now this is fine if you have a windows or mac machine running the latest version of itunes but if like all of us here you have an Ubuntu machine for a very valid reason... i.e you wanted a better operating system that wasnt going to cost the earth.
well, you are screwed as they have locked the third part access to the device's itunes library. I have followed long procedures trying to hack into the phone, modifying certain files, creating a hashfile and dropping this into a system folder to fool the phone into thinking it has the 4.2.1 database still but to no avail. Now my iphone is jailbroken, for the very same reasons as to why have an ubuntu machine, a good peice of hardware with good software that i can customise to run how i see fit, this error is the same with my friends non jaibroken phone and my wifes newly updated iopd..
Surely someone out there who has an ipod, iphone 3gs who are running 4.3.2 or higher has figured out how to fix this annoying "update" problem. The phone mounts fine and i can see a documents drive and the main iphone itself, so it is being recognised but im getting errors when trying ti access the phone in ANY linux media software... They all see the phone but cant recognise the database.
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Dec 2, 2010
I have been given an Apple Ibook that wont boot
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Aug 23, 2010
I installed Ubuntu as shown in the wiki and when I went to restart it gave me a lovely blinking cursor and nothing else. So I held down option, loaded into osx, reinstalled rEFIt and got my menu on startup. Unfortunately, the partition sync tool doesn't seam to be working, it gives me an error: Status: MBR partition table is invalid, partitions overlap. Error: Not Found returned from gptsync.efi
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Apr 10, 2010
After having some issues with GRUB2 not showing my operating system list, I accidently screwed up my Windows 7 partition by selecting the 'Bootable' checkbox in thePalimpsest(?) Disk Utility.After finding this thread (and the links provided in responses), the problem appears to be the same but, unlike the user in that thread, I was unable the uncheck the Bootable flag after checking it - the partition became totally unrecognised, and the Disk Usage Analyser shows only ~5gb of HDD space in use.
I have no other Windows installation on my hard drive, apart from the Recovery Partition which existed when the PC was bought. The thread I linked to suggested that the bootmgr file may be on the partition of another bootable Windows partition (although I'm not able to get to the PC in question right now, so I'm not 100% sure if the Recovery Partition was flagged as bootable or not)What I need to know is:(1) Is it possible to solve this problem without having to re-install Windows? I don't really have many tools (or much knowledge about all these things) at my disposal, and have no idea how to access the Recovery Partition files in order to see if the required Boot folder and bootmgr file are there.Also, in the file explorer, my Windows 7 partition is no longer visible.
(2) If this is possible, do I require internet access on the PC itself? Ever since I installed Ubuntu, it has been unable to detect proprietary drivers for my network card (whereas the demo from the USB stick I installed Ubuntu with was capable of detecting proprietary drivers)
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Jun 2, 2011
My desktop gets little use now but I had to do a clean install and found that grub no longer discovers a DOS partition. Even after install,a grub-update also no longer finds the DOS partition. Can anyone explain, or has this been dropped from grub. I do need that partition, rarely, I admit but still, it is needed.
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Mar 1, 2011
I have (had) a dual boot computer;Win XP and Ubuntu 10.10 64 bit.I decided it was necessary to enlarge my Root and Home Partitions. Using the instructions http://ubuntuforums.org/showthread.p...ome+Partitions I successfully enlarged the partitions and restored 10.10 (I used the copy command suggested by Irony). However when I boot the computer it boots to Ubuntu but no longer gives me the option of going into XP(it is not listed in Grub menu). Is there a fairly straightforward way of getting XP back on the Grub menu so I can boot to XP again?
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Jun 5, 2010
Ok my girlfriend has mac and she wants to play games and we will be useing the wineHQ. I've already looked up games thatwork for it and its good. Well is there away to install ubuntu through bootcamp?
her specs is-
Could i get some instructions? We were currently gonna install windows but it wouldn't work cuz we didnt have the original cd. Bootcamp already has a partition setaside already. Her mac is a Macbook pro
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Sep 24, 2010
boot up in to chameleon, lists only Mac OS X as a boot option. Reboot, load Ubuntu 10.4 install cd, get to a terminal, mount /dev/sda3 /mnt grub-install --force --root-directory=/mnt/ /dev/sda3
reboot, let chameleon come up, it sees both Mac OS X & Ubuntu partitions and I can boot to either or happily, now here is the problem... If I select linux and boot in to linux from chameleon, i am brought to the grub menu, where i can select the first choice which is normal ubuntu 10.4 and every thing is great... until I reboot and my linux partition no longer shows up in chameleon, as if tthe act of booting in to grub is changing something / deleting itself from the partition? and I have to do the whole thing over again. SO, not having to even go in to OS X, I'm not sure thats really the concerns more as I'm doing something wrong with grub.
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Jan 28, 2010
I've followed the instructions on the guide to make a triple boot for macbook 5.2 generation.
ATm I'm only with DUAL boot: OS X and XP coze of the karmic koala version of ubuntu doesn't got the package gptsync I need and I'm not expert enough to do what is said in this thread [url]
BTW my problem concern windows:
I've installed it and I've installed also the drivers from apple CD btw When I boot windows for the first 1/2 minute once I do anything its freeze like if it would be out of ram and after 1 or 2 minute it start to work without problems and doesn't freeze anymore
but I'm feared about this freeze that I get the first time I make something.
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Mar 30, 2010
I'm running ubuntu 9.10 on my mac as a separate partition. I have World of Warcraft installed on the mac side. I want to use PlayOnLinux to run the game from the mac partition. Has anybody done this? If so, how would I go about making this work?
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May 4, 2010
I have installed 10.04 on my MacBook Pro 6,2, and am trying to access some files stored in my User directory on the OS X partition of the laptop. I get a permission-denied error, but I figured this was a similar issue to the one mentioned in the stickied "How to Install Ubuntu 9.04 on Intel-Based Macs" thread.However, the suggest fix,Code:sudo usermod -u 501 -g 20 richarddoesn't exactly work for me. I tried this, but found myself suddenly logged out of my main account. On the log-in screen, only my second account showed up. Luckily, I was able to log into that, and re-usermod my main account back to it's original userid number.I am guessing that my strange error had to do with the abnormal (for ubuntu, at least) userid?
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Jul 15, 2010
I want to install Ubuntu 10.04 PPC along side my mac OS on a partition on the inter hard drive that I created with 10.5 disk utility. When I get to the part in the Ubuntu installer where it ask where to install I only see the whole hard drive and not the partition I made, and when I go into the partition menu I click on it there but it won't let me install it.
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Sep 11, 2010
I have Ubuntu installed on my Macbook Pro but when I am mount my mac partition by clicking on it in Nautilus some of my user folders are not accessible unless I start Nautilus as root. Is there a simple way for me to make these folders accessible?
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Mar 30, 2011
I'm trying to repartition the 60gb hd on my macbook 1,1 so that I can triple boot os x, ubuntu, and windows. When I try to repartition it all at once with diskutil resizeVolume, I get the error: "Resizing encountered error on disk disk0s2 gunton: No space left on device (2"
Everything I've found through google indicates that this means there is not enough contiguous disk space available to resize and create those partitions. I defragmented my harddrive using the online mode with idefrag, unfortunately that didn't work. I also tried boot camp to just do the windows partition first, but it says it that it cannot move system files or something, basically the same error as above.
My thought was whether or not I could either create an os x bootable cd (no dvd-r) and fully defragment it while it's offline, but a du -chs of the necessary directories was well beyond 700mb.
My next thought is the pertinent question: is there a disk defrag tool on the ubuntu live cd? if not, if i downloaded one and placed it on a usb drive, will it mount from the live cd? or is there another way to combat this partitioning problem that i'm unaware of? (i don't have an external harddrive, so i can't timemachine/reformat/restore system).
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May 3, 2011
I've been trying to install 11.04 on my MacBook Pro5,2, (already have Mac OS X Snow Leopard and Windows 7 installed) but every time I get to screen where it asks me to install, the installation GUI doesn't see my partitions. The strange thing is that if I run sudo fdisk -lu /dev/sda I get:
Disk /dev/sda: 160.0 GB, 160041885696255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * 512 = 512 bytes Sector size(logical/physical): 512 bytes / 512 bytesI/O size (minimum/optimal): 512 bytes / 512 bytes
[code]...
Seems like everything is fine, no sectors are overlapping, and fdisk definitely recognizes the partition.
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May 16, 2011
Is there an easy way to read/write to a mac partition inside ubuntu 11?
Any graphical ways to mount / umount?
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Jul 26, 2011
I was going to resize my linux partition after solving my other problem, but bootcamp prompts me with:
Code:
The startup disk cannot be partitioned or restored to a single partition.
The startup disk must be formatted as a single Mac OS Extended (Journaled) volume or already partitioned by Boot Camp Assistant for installing Windows. Does this mean I first ahve to reformat the disk to fat32/nfts and can then resize or is something fishy going on here? Or can I just increase my mac partition using disk utility (erasing the linux partition) without having to reinstall OS X?
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Aug 1, 2011
I was just curious how many people have succeeded getting a triple boot from simple running boot camp on OS X and install windows 7. Then going to windows 7 partition and running wubi.[URL]... I have a brand new macbook air (one of the ones that just came out) and I'm tempted to try this, but if it doesn't work, then I will sit on my hands a little longer before I try to get the ubuntu on my mba. Anyway, anyone tried this? Especially with a new macbook air?
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May 21, 2010
I am trying to install a box here where my /storage partition is about 2.5T.I had setup the partitioning with suse, while testing, and all worked well.Now when trying to install CentOs 5.5 it gives me an error, that my boot partition is on a gpt partition and this machine cannot boot that.Also I don't see the option to create XFS partitions from the installer.Can 5.5 support GPT @ install time?
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Apr 19, 2010
I'm sure I've done this before and never ran into trouble so it's not like I wasn't thinking, just something went wrong this time and I'm screwed. I'll post a fdisk -l to show ya what I mean.
[root@localhost ~]# fdisk -l /dev/sda
Warning: invalid flag 0x0000 of partition table 5 will be corrected by w(rite)
Disk /dev/sda: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x624aa2e0
[code]...
Well I tried to install Pclinuxos 2010 to the same partitions as Mint 7 and basically just over write it (this I have done before) but this time Pclinuxos says there is a bad block and it can't copy files to / (sda7) I didn't think much of it at the time and thought I would try to install it (Pclinuxos) on a separate 100 gb usb drive and it was a sucessful install.
After booting Pclinuxos I try to access my 1TB sda hard drive and I can ony access sda1 .....when I look at /dev/sda in gparted is shows the whole disk as unallocated.I have done nothing at this point in time other than what I just said because I am very afraid of loosing all my pictures and everything else on that disk....and for those that will say always back up ....if ya think I'm not kicking myself right now your dead wrong......
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