can't boot into elementary OS after pram reset on mac
I apologize for my ignorance, but i'm new to EOS/Linux. And i thought i'd post here, I haven't had any response on another forum specifcially for EOS.
I had to reset the PRAM on my MB Pro the other day. I had EOS installed, and it would automatically boot to it (still hadn't figured out how to get the GRUB loader). I would have to hold down the option key to get the choice to boot El Capitan.
Anyway, after the reset it automatically boots into OS X. I thought i had erased EOS but when I attached the USB stick in order to reinstall it, it noted that EOS was already on the machine. I didn't install and took a look at GPARTED, and sure enough there it was, with the swap file and everything. In OS Disk Utility it showed the mac partition and the other partition for EOS, but was called 'unidentified.'
So to my mind there has to be a way to be able to boot into EOS, but I don't know how to do this. Can someone help me out here? If you need more info let me know.
Here's what I can tell you so far after some replies:
I just turned on the mac after inserting the usb stick with EOS on it (i think its an iso file). When I hold down the option key I get either the mac partition or the usb stick (which is called EFI boot). I choose that one, and now I'm looking at the GNU Grub screen, with the the choices to
Try elementary OS without installing
Install Elementary OS
OEM install (for manufacturers)
Check disc for errors
There's no rescue here (which i've been advised to try) obviously. So if I choose install, which I think is what you mean, then I get the welcome screen with a language choice
Then when I click continue I get the preparing to install elementary; i click continue with a choice to download updates while installing and one to download third party software for graphics and wi-fi hardware, etc. I don't choose either and just click continue.
Then I get the installation type window. at the the top oft he window there is a message saying that EOS is already install the computer.
I choose the "something else" option, rather than erased the disk, or encrypt the new elementary installation for security, or the use the LVM with the new elementary installation.
Then I get the installation type with all the the partitions on the SSD:
/dev/sda1 efi
/dev/sda2 hfs+ (the mac partition]
/dev/sda3 hfs+ (mac recovery partition or disk)
/dev/sda4 hfs+ (another mac recovery disk)
/dev/sda5 ext4 (the EOS partition)
There is also the linx swap file
There is also "device for boot loader installation" with the name of the SSD in the mac
There are no mount points for any of these partitions, if that makes any difference.
If a cancel the install I get the desktop, and when I open gparted it shows all the partitions, but the only one that has a flag is the EFI System Partition. none of the other partitions have any flags, and I'm not sure of that means anything.
Comments
-
Did you figure this out? I'm not sure the exact role NVRAM/PRAM has on booting the system on a MB, but I've helped a friend with a similar issue on his MB.
The easiest solution would be to "Try EOS without installing" or "Install" so that you can get shell. From there I would migrate/backup my filesystem to the OSx partition or an external source before reinstall EOS. Another method you could try is reinstalling grub, I'm assuming grub was installed on the sda5 partition and not the "device for bootloader installation"?
To be honest there are other "easier" ways to approach the problem, but this is by far the most straightforward I can think of-- anything else would involve 'rescue or recovery' which can all be done from the live image you have, but I'm not certain it will be that easy to alter the boot configuration on your MB.
Good luck.
0
Categories
- All Categories
- 217 LFX Mentorship
- 217 LFX Mentorship: Linux Kernel
- 791 Linux Foundation IT Professional Programs
- 353 Cloud Engineer IT Professional Program
- 178 Advanced Cloud Engineer IT Professional Program
- 82 DevOps Engineer IT Professional Program
- 147 Cloud Native Developer IT Professional Program
- 137 Express Training Courses
- 137 Express Courses - Discussion Forum
- 6.2K Training Courses
- 47 LFC110 Class Forum - Discontinued
- 71 LFC131 Class Forum
- 42 LFD102 Class Forum
- 226 LFD103 Class Forum
- 18 LFD110 Class Forum
- 38 LFD121 Class Forum
- 18 LFD133 Class Forum
- 7 LFD134 Class Forum
- 18 LFD137 Class Forum
- 71 LFD201 Class Forum
- 4 LFD210 Class Forum
- 5 LFD210-CN Class Forum
- 2 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum - Discontinued
- 2 LFD233 Class Forum
- 4 LFD237 Class Forum
- 24 LFD254 Class Forum
- 697 LFD259 Class Forum
- 111 LFD272 Class Forum
- 4 LFD272-JP クラス フォーラム
- 12 LFD273 Class Forum
- 148 LFS101 Class Forum
- 1 LFS111 Class Forum
- 3 LFS112 Class Forum
- 2 LFS116 Class Forum
- 4 LFS118 Class Forum
- LFS120 Class Forum
- 7 LFS142 Class Forum
- 5 LFS144 Class Forum
- 4 LFS145 Class Forum
- 2 LFS146 Class Forum
- 3 LFS147 Class Forum
- 1 LFS148 Class Forum
- 15 LFS151 Class Forum
- 2 LFS157 Class Forum
- 29 LFS158 Class Forum
- 7 LFS162 Class Forum
- 2 LFS166 Class Forum
- 4 LFS167 Class Forum
- 3 LFS170 Class Forum
- 2 LFS171 Class Forum
- 3 LFS178 Class Forum
- 3 LFS180 Class Forum
- 2 LFS182 Class Forum
- 5 LFS183 Class Forum
- 31 LFS200 Class Forum
- 737 LFS201 Class Forum - Discontinued
- 3 LFS201-JP クラス フォーラム
- 18 LFS203 Class Forum
- 134 LFS207 Class Forum
- 2 LFS207-DE-Klassenforum
- 1 LFS207-JP クラス フォーラム
- 302 LFS211 Class Forum
- 56 LFS216 Class Forum
- 52 LFS241 Class Forum
- 48 LFS242 Class Forum
- 38 LFS243 Class Forum
- 15 LFS244 Class Forum
- 2 LFS245 Class Forum
- LFS246 Class Forum
- 48 LFS250 Class Forum
- 2 LFS250-JP クラス フォーラム
- 1 LFS251 Class Forum
- 152 LFS253 Class Forum
- 1 LFS254 Class Forum
- 1 LFS255 Class Forum
- 7 LFS256 Class Forum
- 1 LFS257 Class Forum
- 1.2K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 118 LFS260 Class Forum
- 159 LFS261 Class Forum
- 42 LFS262 Class Forum
- 82 LFS263 Class Forum - Discontinued
- 15 LFS264 Class Forum - Discontinued
- 11 LFS266 Class Forum - Discontinued
- 24 LFS267 Class Forum
- 22 LFS268 Class Forum
- 30 LFS269 Class Forum
- LFS270 Class Forum
- 202 LFS272 Class Forum
- 2 LFS272-JP クラス フォーラム
- 1 LFS274 Class Forum
- 4 LFS281 Class Forum
- 9 LFW111 Class Forum
- 259 LFW211 Class Forum
- 181 LFW212 Class Forum
- 13 SKF100 Class Forum
- 1 SKF200 Class Forum
- 1 SKF201 Class Forum
- 795 Hardware
- 199 Drivers
- 68 I/O Devices
- 37 Monitors
- 102 Multimedia
- 174 Networking
- 91 Printers & Scanners
- 85 Storage
- 758 Linux Distributions
- 82 Debian
- 67 Fedora
- 17 Linux Mint
- 13 Mageia
- 23 openSUSE
- 148 Red Hat Enterprise
- 31 Slackware
- 13 SUSE Enterprise
- 353 Ubuntu
- 468 Linux System Administration
- 39 Cloud Computing
- 71 Command Line/Scripting
- Github systems admin projects
- 93 Linux Security
- 78 Network Management
- 102 System Management
- 47 Web Management
- 63 Mobile Computing
- 18 Android
- 33 Development
- 1.2K New to Linux
- 1K Getting Started with Linux
- 371 Off Topic
- 114 Introductions
- 174 Small Talk
- 22 Study Material
- 805 Programming and Development
- 303 Kernel Development
- 484 Software Development
- 1.8K Software
- 261 Applications
- 183 Command Line
- 3 Compiling/Installing
- 987 Games
- 317 Installation
- 97 All In Program
- 97 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)