From: Peter H. <hu...@gm...> - 2008-12-30 17:39:06
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Hello, Is it possible to boot Linux from a USB drive without modifying the Mac? I installed Ubuntu on a USB drive, but the drive does not come up as a boot option. All the information I can find on the web is for booting from various boot managers on the startup drive. Is this really the only way? Thanks, Peter PS: Sorry if this is a dupe. I previously sent it from the wrong address. |
From: Stefan M. <mo...@ir...> - 2009-08-20 17:16:53
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> Is it possible to boot Linux from a USB drive without modifying the Mac? In theory, it is possible: all Intel Macs can boot from USB (AFAIK). But the legacy BIOS in those Macs does not support booting from USB. So you'll have to boot using EFI. I've been trying to do that on-and-off, in the hope to get my trusty "rescue USB key" to also work on my Macbook Pro, but until now I haven't had much success, tho it seems that some people do get to boot Linux via EFI on their Mac. Any information about this would be welcome, Stefan |
From: Zoltan S. <zse...@gm...> - 2009-08-22 07:37:54
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Now including the list ... sorry Stefan. On Thu, Aug 20, 2009 at 7:16 PM, Stefan Monnier<mo...@ir...> wrote: >> Is it possible to boot Linux from a USB drive without modifying the Mac? > > In theory, it is possible: all Intel Macs can boot from USB (AFAIK). > But the legacy BIOS in those Macs does not support booting from USB. > So you'll have to boot using EFI. > > I've been trying to do that on-and-off, in the hope to get my trusty > "rescue USB key" to also work on my Macbook Pro, but until now I haven't > had much success, tho it seems that some people do get to boot Linux via > EFI on their Mac. > > Any information about this would be welcome, I have used rEFIt for this purpose: http://refit.sourceforge.net/ Just plug in the USB stick prior to booting and an additional icon will show up on the initial selection. Cheers, Zoltan |
From: Stefan M. <mo...@ir...> - 2009-08-25 18:59:23
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>>> Is it possible to boot Linux from a USB drive without modifying the Mac? >> In theory, it is possible: all Intel Macs can boot from USB (AFAIK). >> But the legacy BIOS in those Macs does not support booting from USB. >> So you'll have to boot using EFI. >> I've been trying to do that on-and-off, in the hope to get my trusty >> "rescue USB key" to also work on my Macbook Pro, but until now I haven't >> had much success, tho it seems that some people do get to boot Linux via >> EFI on their Mac. >> Any information about this would be welcome, > I have used rEFIt for this purpose: http://refit.sourceforge.net/ rEFIt doesn't boot Linux. So it's not a solution to this problem. > Just plug in the USB stick prior to booting and an additional icon > will show up on the initial selection. What USB stick? What do you need to put on it? This said, I have finally managed to get Grub2's EFI support to work. Incidentally, I do use rEFIt on top of Grub2 (basically, I use rEFIt to choose between Grub2-ia32 and Grub2-amd64, since rEFIt luckily uses a fat-binary whereas Grub2 doesn't). Stefan |
From: Geoffrey <li...@se...> - 2009-08-25 19:13:43
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Stefan Monnier wrote: >>>> Is it possible to boot Linux from a USB drive without modifying the Mac? >>> In theory, it is possible: all Intel Macs can boot from USB (AFAIK). >>> But the legacy BIOS in those Macs does not support booting from USB. >>> So you'll have to boot using EFI. >>> I've been trying to do that on-and-off, in the hope to get my trusty >>> "rescue USB key" to also work on my Macbook Pro, but until now I haven't >>> had much success, tho it seems that some people do get to boot Linux via >>> EFI on their Mac. >>> Any information about this would be welcome, >> I have used rEFIt for this purpose: http://refit.sourceforge.net/ > > rEFIt doesn't boot Linux. So it's not a solution to this problem. Um, unless I mis-understand what you're saying, that's not correct. I'm booting Linux via rEFIt. Or are you saying you can't boot Linux from a USB device via rEFIt? >> Just plug in the USB stick prior to booting and an additional icon >> will show up on the initial selection. > > What USB stick? What do you need to put on it? > > This said, I have finally managed to get Grub2's EFI support to work. > Incidentally, I do use rEFIt on top of Grub2 (basically, I use rEFIt to > choose between Grub2-ia32 and Grub2-amd64, since rEFIt luckily uses > a fat-binary whereas Grub2 doesn't). > > > Stefan > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Mactel-linux-users mailing list > Mac...@li... > https://lists.sourceforge.net/lists/listinfo/mactel-linux-users > -- Until later, Geoffrey Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. - Benjamin Franklin |
From: Geoffrey <li...@se...> - 2009-08-26 10:41:16
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Stefan Monnier wrote: >>> rEFIt doesn't boot Linux. So it's not a solution to this problem. >> Um, unless I mis-understand what you're saying, that's not correct. I'm >> booting Linux via rEFIt. > > Yes, "via rEFIt": it's not rEFIt that boots Linux. rEFIt just lets you > choose what to boot, and then tells Apple's firmware to boot it, either > via its EFI support or via its legacy BIOS support. > >> Or are you saying you can't boot Linux from a USB device via rEFIt? > > I'm saying you can, but only if you can also boot it without rEFIt (tho > rEFIt may make it more convenient, of course). E.g. if your Mac can't > boot Linux-on-USB via its legacy BIOS (because that BIOS simply doesn't > support USB drives, as is the case for all the Macs I have), then rEFIT > won't help you: you'll have to boot via the EFI boot. Thanks for the clarification. -- Until later, Geoffrey Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. - Benjamin Franklin |
From: cyberdork33 <cyb...@gm...> - 2009-08-25 19:19:44
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On Aug 25, 2009, at 2:13 PM, Geoffrey wrote: > Stefan Monnier wrote: >>>>> Is it possible to boot Linux from a USB drive without modifying >>>>> the Mac? >>>> In theory, it is possible: all Intel Macs can boot from USB >>>> (AFAIK). >>>> But the legacy BIOS in those Macs does not support booting from >>>> USB. >>>> So you'll have to boot using EFI. >>>> I've been trying to do that on-and-off, in the hope to get my >>>> trusty >>>> "rescue USB key" to also work on my Macbook Pro, but until now I >>>> haven't >>>> had much success, tho it seems that some people do get to boot >>>> Linux via >>>> EFI on their Mac. >>>> Any information about this would be welcome, >>> I have used rEFIt for this purpose: http://refit.sourceforge.net/ >> >> rEFIt doesn't boot Linux. So it's not a solution to this problem. > > Um, unless I mis-understand what you're saying, that's not correct. > I'm > booting Linux via rEFIt. Or are you saying you can't boot Linux > from a > USB device via rEFIt? rEFIt doesn't "boot" Linux, it is just an interface to the standard Apple-supplied EFI... and it will not boot in legacy mode from USB or firewire. Therefore you have to boot Linux in EFI mode which requires GRUB-EFI or ELILO. I have only had success with GRUB-EFI. http://grub.enbug.org/TestingOnMacbook Lot's of testing info... http://ubuntuforums.org/showthread.php?t=995704 > >>> Just plug in the USB stick prior to booting and an additional icon >>> will show up on the initial selection. >> >> What USB stick? What do you need to put on it? >> >> This said, I have finally managed to get Grub2's EFI support to work. >> Incidentally, I do use rEFIt on top of Grub2 (basically, I use >> rEFIt to >> choose between Grub2-ia32 and Grub2-amd64, since rEFIt luckily uses >> a fat-binary whereas Grub2 doesn't). >> >> >> Stefan >> >> >> ------------------------------------------------------------------------------ >> Let Crystal Reports handle the reporting - Free Crystal Reports >> 2008 30-Day >> trial. Simplify your report design, integration and deployment - >> and focus on >> what you do best, core application coding. Discover what's new with >> Crystal Reports now. http://p.sf.net/sfu/bobj-july >> _______________________________________________ >> Mactel-linux-users mailing list >> Mac...@li... >> https://lists.sourceforge.net/lists/listinfo/mactel-linux-users >> > > > -- > Until later, Geoffrey > > Those who would give up essential Liberty, to purchase a little > temporary Safety, deserve neither Liberty nor Safety. > - Benjamin Franklin > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > 30-Day > trial. Simplify your report design, integration and deployment - and > focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Mactel-linux-users mailing list > Mac...@li... > https://lists.sourceforge.net/lists/listinfo/mactel-linux-users |
From: Geoffrey <li...@se...> - 2009-08-25 19:27:12
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cyberdork33 wrote: > > On Aug 25, 2009, at 2:13 PM, Geoffrey wrote: > >> Stefan Monnier wrote: >>>>>> Is it possible to boot Linux from a USB drive without modifying >>>>>> the Mac? >>>>> In theory, it is possible: all Intel Macs can boot from USB (AFAIK). >>>>> But the legacy BIOS in those Macs does not support booting from USB. >>>>> So you'll have to boot using EFI. >>>>> I've been trying to do that on-and-off, in the hope to get my trusty >>>>> "rescue USB key" to also work on my Macbook Pro, but until now I >>>>> haven't >>>>> had much success, tho it seems that some people do get to boot >>>>> Linux via >>>>> EFI on their Mac. >>>>> Any information about this would be welcome, >>>> I have used rEFIt for this purpose: http://refit.sourceforge.net/ >>> >>> rEFIt doesn't boot Linux. So it's not a solution to this problem. >> >> Um, unless I mis-understand what you're saying, that's not correct. I'm >> booting Linux via rEFIt. Or are you saying you can't boot Linux from a >> USB device via rEFIt? > > rEFIt doesn't "boot" Linux, it is just an interface to the standard > Apple-supplied EFI... and it will not boot in legacy mode from USB or > firewire. Therefore you have to boot Linux in EFI mode which requires > GRUB-EFI or ELILO. I have only had success with GRUB-EFI. I am using neither ELILO or GRUB-EFI. I'm using stock grub with rEFIt. > > http://grub.enbug.org/TestingOnMacbook > > Lot's of testing info... > http://ubuntuforums.org/showthread.php?t=995704 > >> >>>> Just plug in the USB stick prior to booting and an additional icon >>>> will show up on the initial selection. >>> >>> What USB stick? What do you need to put on it? >>> >>> This said, I have finally managed to get Grub2's EFI support to work. >>> Incidentally, I do use rEFIt on top of Grub2 (basically, I use rEFIt to >>> choose between Grub2-ia32 and Grub2-amd64, since rEFIt luckily uses >>> a fat-binary whereas Grub2 doesn't). >>> >>> >>> Stefan >>> >>> >>> ------------------------------------------------------------------------------ >>> >>> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 >>> 30-Day >>> trial. Simplify your report design, integration and deployment - and >>> focus on >>> what you do best, core application coding. Discover what's new with >>> Crystal Reports now. http://p.sf.net/sfu/bobj-july >>> _______________________________________________ >>> Mactel-linux-users mailing list >>> Mac...@li... >>> https://lists.sourceforge.net/lists/listinfo/mactel-linux-users >>> >> >> >> -- >> Until later, Geoffrey >> >> Those who would give up essential Liberty, to purchase a little >> temporary Safety, deserve neither Liberty nor Safety. >> - Benjamin Franklin >> >> ------------------------------------------------------------------------------ >> >> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 >> 30-Day >> trial. Simplify your report design, integration and deployment - and >> focus on >> what you do best, core application coding. Discover what's new with >> Crystal Reports now. http://p.sf.net/sfu/bobj-july >> _______________________________________________ >> Mactel-linux-users mailing list >> Mac...@li... >> https://lists.sourceforge.net/lists/listinfo/mactel-linux-users > > -- Until later, Geoffrey Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. - Benjamin Franklin |