Trying to Install on USB drive using GRUB

Trying to Install on USB drive using GRUB

[jacksprat]

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My laptop hard drive died, so as an interim solution, I wanted to install 
Void Linux on a removable hard drive [/dev/sdb1].  

I started with the current 64-bit MUSL live image.  The void-installer 
script, run as root, fails to complete, complaining about expecting to find 
an efi setup.  Rather than get involved with efi , I tried

  mkdir /usb
  mount /dev/sdb1 /usb
  <create /usb/boot/grub/grub.cfg with suitable menu item>
  grub-install --target=i384-pc --boot-directory=/usb/boot  /dev/sdb
  umount /usb

which completed without errors.  However, on reboot, I get the grub menu 
from the failed hard drive.

I also ran fdisk on /dev/sdb to mark the partition bootable.  What have I 
missed?  Thanks.

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Re: Trying to Install on USB drive using GRUB

[Igor Fontana]

> My laptop hard drive died, so as an interim solution, I wanted to install Void Linux on a removable hard drive [/dev/sdb1].
>
> I started with the current 64-bit MUSL live image.  The void-installer script, run as root, fails to complete, complaining about expecting to find an efi setup.  Rather than get involved with efi , I tried
>
>   mkdir /usb
>   mount /dev/sdb1 /usb
>   <create /usb/boot/grub/grub.cfg with suitable menu item>
>   grub-install --target=i384-pc --boot-directory=/usb/boot  /dev/sdb
>   umount /usb
>
> which completed without errors.  However, on reboot, I get the grub menu from the failed hard drive.
>
> I also ran fdisk on /dev/sdb to mark the partition bootable.  What have I missed?  Thanks.

Back in the days you had to set the drive you wanted to boot on the
BIOS setup. I'm not sure about EFI (my PC is still BIOS) but I'd
expect the same.

<3


-- 
Pudding

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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My laptop is setup so that it tries USB first, then reverts to hard drive 
if no suitable USB device is present.


On Tuesday, June 25, 2019 at 10:32:16 AM UTC+1, space pudim wrote:
>
> > My laptop hard drive died, so as an interim solution, I wanted to 
> install Void Linux on a removable hard drive [/dev/sdb1]. 
> > 
> > I started with the current 64-bit MUSL live image.  The void-installer 
> script, run as root, fails to complete, complaining about expecting to find 
> an efi setup.  Rather than get involved with efi , I tried 
> > 
> >   mkdir /usb 
> >   mount /dev/sdb1 /usb 
> >   <create /usb/boot/grub/grub.cfg with suitable menu item> 
> >   grub-install --target=i384-pc --boot-directory=/usb/boot  /dev/sdb 
> >   umount /usb 
> > 
> > which completed without errors.  However, on reboot, I get the grub menu 
> from the failed hard drive. 
> > 
> > I also ran fdisk on /dev/sdb to mark the partition bootable.  What have 
> I missed?  Thanks. 
>
> Back in the days you had to set the drive you wanted to boot on the 
> BIOS setup. I'm not sure about EFI (my PC is still BIOS) but I'd 
> expect the same. 
>
> <3 
>
>
> -- 
> Pudding 
>

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Re: Trying to Install on USB drive using GRUB

[Igor Fontana]

> My laptop is setup so that it tries USB first, then reverts to hard drive if no suitable USB device is present.

Oh yes, I've faced this in the past too. Some computers have a boot
menu, and you have to boot your drive from there, otherwise it won't
work, even if you put USB boot on the BIOS setup. Just like the "press
delete to enter setup", some have a "press f8 (or f12 or some other
key) to enter boot menu".

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Pudding

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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If I insert the USB drive with the Void Linux live system, then t boots.  
OK, that probably uses syslinux and not GRUB.  Installing GRUB on the hard 
drive [/dev/sda] always works, so why not /dev/sdb?

On Tuesday, June 25, 2019 at 11:39:15 AM UTC+1, space pudim wrote:
>
> > My laptop is setup so that it tries USB first, then reverts to hard 
> drive if no suitable USB device is present. 
>
> Oh yes, I've faced this in the past too. Some computers have a boot 
> menu, and you have to boot your drive from there, otherwise it won't 
> work, even if you put USB boot on the BIOS setup. Just like the "press 
> delete to enter setup", some have a "press f8 (or f12 or some other 
> key) to enter boot menu". 
>
> -- 
> Pudding 
>

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Re: Trying to Install on USB drive using GRUB

[Igor Fontana]

> If I insert the USB drive with the Void Linux live system, then t boots.  OK, that probably uses syslinux and not GRUB.  Installing GRUB on the hard drive [/dev/sda] always works, so why not /dev/sdb?

Did you try Void Live on the same USB device you want to install it on?

I've seen this many times: some devices get listed as "USB Storage",
and some as "USB HDD" (even sticks), and it won't get matched by the
BIOS, even though it's all USB.

The solution was to select the thing manually from the boot menu - not
the BIOS setup. But then it may be the case that your BIOS is just
unable to boot on that particular device. If you didn't try the Void
Live on the same device, I would advise you to do so.

-- 
Pudding

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Re: Trying to Install on USB drive using GRUB

[Jeff Pohlmeyer]

Did you set the bootable (active) flag of the boot partition on the USB drive?

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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I suppose it is possible that there is something peculial about the USB 
drive that I am trying to install to:  Samdung EVO SSD connected via an 
ORICO USB case.  I will try using ann identical USB "pen drive" to the one 
that I wrote the Void Linux Live image.  If so, it would be a pitty as the 
Samsung SSDs are cool.

On Tuesday, June 25, 2019 at 1:55:11 PM UTC+1, space pudim wrote:
>
> > If I insert the USB drive with the Void Linux live system, then t boots. 
>  OK, that probably uses syslinux and not GRUB.  Installing GRUB on the hard 
> drive [/dev/sda] always works, so why not /dev/sdb? 
>
> Did you try Void Live on the same USB device you want to install it on? 
>
> I've seen this many times: some devices get listed as "USB Storage", 
> and some as "USB HDD" (even sticks), and it won't get matched by the 
> BIOS, even though it's all USB. 
>
> The solution was to select the thing manually from the boot menu - not 
> the BIOS setup. But then it may be the case that your BIOS is just 
> unable to boot on that particular device. If you didn't try the Void 
> Live on the same device, I would advise you to do so. 
>
> -- 
> Pudding 
>

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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While using the Void Live instance, use used 

  fdisk /dev/sdb

and set the partition bootable.  I don't know any other way to mark the 
device bootable.

On Tuesday, June 25, 2019 at 2:38:31 PM UTC+1, Jeffrey Pohlmeyer wrote:
>
> Did you set the bootable (active) flag of the boot partition on the USB 
> drive? 
>

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Re: Trying to Install on USB drive using GRUB

[Igor Fontana]

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El mar., 25 de jun. de 2019 14:53, jacksprat <picamanic@gmail.com> escribió:

> While using the Void Live instance, use used
>
>   fdisk /dev/sdb
>
> and set the partition bootable.  I don't know any other way to mark the
> device bootable.
>

btw did you check if your USB HDD shows up as a regular HDD on the BIOS?

>

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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The BIOS [HP] doesn't say anything about what type of device is plugged 
into the USB port.
On Tuesday, June 25, 2019 at 2:59:05 PM UTC+1, space pudim wrote:
>
> El mar., 25 de jun. de 2019 14:53, jacksprat <pica...@gmail.com 
> <javascript:>> escribió:
>
>> While using the Void Live instance, use used 
>>
>>   fdisk /dev/sdb
>>
>> and set the partition bootable.  I don't know any other way to mark the 
>> device bootable.
>>
>
> btw did you check if your USB HDD shows up as a regular HDD on the BIOS?
>
>>

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Re: Trying to Install on USB drive using GRUB

[Igor Fontana]

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El mar., 25 de jun. de 2019 15:07, jacksprat <picamanic@gmail.com> escribió:

>
> The BIOS [HP] doesn't say anything about what type of device is plugged
> into the USB port.
>

It could be listed together with the regular HDDs, not on the USB page.

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Re: Trying to Install on USB drive using GRUB

[Jeff Pohlmeyer]

On Tue, Jun 25, 2019 at 8:53 AM jacksprat <picamanic@gmail.com> wrote:
>
> While using the Void Live instance, use used
>   fdisk /dev/sdb
> and set the partition bootable.  I don't know any other way to mark the device bootable.

Yes, that's what I meant. You can double-check by running:

fdisk   -l  /dev/sdb

and see if there is a star * next to the boot partition.

 -- Jeff

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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yes, fdisk has the partition marked with an asterisk/star.
On Tuesday, June 25, 2019 at 3:25:01 PM UTC+1, Jeffrey Pohlmeyer wrote:
>
> On Tue, Jun 25, 2019 at 8:53 AM jacksprat <pica...@gmail.com <javascript:>> 
> wrote: 
> > 
> > While using the Void Live instance, use used 
> >   fdisk /dev/sdb 
> > and set the partition bootable.  I don't know any other way to mark the 
> device bootable. 
>
> Yes, that's what I meant. You can double-check by running: 
>
> fdisk   -l  /dev/sdb 
>
> and see if there is a star * next to the boot partition. 
>
>  -- Jeff 
>

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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Well, I tried install to the identical pen drive that booted Void Linux 
Live, and repeated what I did to grub-install, and the resultant USB drive 
booted!  However, the boot sequence died running the initramfs, just after 
running dracut on the first partition of my HD [/dev/sda1].  I have aleady 
seen my error in the grub.cfg file [scream].  This is going too be hard 
work, but worth it in the end [?].  Just got to remember how grub.cfg is 
coded..

On Tuesday, June 25, 2019 at 1:55:11 PM UTC+1, space pudim wrote:
>
> > If I insert the USB drive with the Void Linux live system, then t boots. 
>  OK, that probably uses syslinux and not GRUB.  Installing GRUB on the hard 
> drive [/dev/sda] always works, so why not /dev/sdb? 
>
> Did you try Void Live on the same USB device you want to install it on? 
>
> I've seen this many times: some devices get listed as "USB Storage", 
> and some as "USB HDD" (even sticks), and it won't get matched by the 
> BIOS, even though it's all USB. 
>
> The solution was to select the thing manually from the boot menu - not 
> the BIOS setup. But then it may be the case that your BIOS is just 
> unable to boot on that particular device. If you didn't try the Void 
> Live on the same device, I would advise you to do so. 
>
> -- 
> Pudding 
>

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Re: Trying to Install on USB drive using GRUB

[Igor Fontana]

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El mar., 25 de jun. de 2019 16:34, jacksprat <picamanic@gmail.com> escribió:

> Well, I tried install to the identical pen drive that booted Void Linux
> Live, and repeated what I did to grub-install, and the resultant USB drive
> booted!  However, the boot sequence died running the initramfs, just after
> running dracut on the first partition of my HD [/dev/sda1].  I have aleady
> seen my error in the grub.cfg file [scream].  This is going too be hard
> work, but worth it in the end [?].  Just got to remember how grub.cfg is
> coded..
>

Maybe LILO is still an option?

>

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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Lilo?  Ii haven't given up trying to get grub.cfg right.  here is a fragment

#
menuentry 'Void GNU/Linux 4.18.17 [sda1]' {
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos1'
    echo    'Loading Linux 4.18.17_1 ...'
    linux    /boot/vmlinuz-4.18.17_1 root=/dev/sda1 ro  
    echo    'Loading initial ramdisk ...'
    initrd    /boot/initramfs-4.18.17_1.img
}

It is the "set root" line that I suspect is wrong, but if "msdos1"=1st 
partition, why do both "hd0" and "hd1" fail?  Close..

On Tuesday, June 25, 2019 at 4:40:28 PM UTC+1, space pudim wrote:
>
> El mar., 25 de jun. de 2019 16:34, jacksprat <pica...@gmail.com 
> <javascript:>> escribió:
>
>> Well, I tried install to the identical pen drive that booted Void Linux 
>> Live, and repeated what I did to grub-install, and the resultant USB drive 
>> booted!  However, the boot sequence died running the initramfs, just after 
>> running dracut on the first partition of my HD [/dev/sda1].  I have aleady 
>> seen my error in the grub.cfg file [scream].  This is going too be hard 
>> work, but worth it in the end [?].  Just got to remember how grub.cfg is 
>> coded..
>>
>
> Maybe LILO is still an option?
>
>>

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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In the grub.cfg below, I fixed "sda1" to "sdb1".  Still no go..

On Tuesday, June 25, 2019 at 5:59:54 PM UTC+1, jacksprat wrote:
>
> Lilo?  Ii haven't given up trying to get grub.cfg right.  here is a 
> fragment
>
> #
> menuentry 'Void GNU/Linux 4.18.17 [sda1]' {
>     insmod gzio
>     insmod part_msdos
>     insmod ext2
>     set root='hd0,msdos1'
>     echo    'Loading Linux 4.18.17_1 ...'
>     linux    /boot/vmlinuz-4.18.17_1 root=/dev/sda1 ro  
>     echo    'Loading initial ramdisk ...'
>     initrd    /boot/initramfs-4.18.17_1.img
> }
>
> It is the "set root" line that I suspect is wrong, but if "msdos1"=1st 
> partition, why do both "hd0" and "hd1" fail?  Close..
>
> On Tuesday, June 25, 2019 at 4:40:28 PM UTC+1, space pudim wrote:
>>
>> El mar., 25 de jun. de 2019 16:34, jacksprat <pica...@gmail.com> 
>> escribió:
>>
>>> Well, I tried install to the identical pen drive that booted Void Linux 
>>> Live, and repeated what I did to grub-install, and the resultant USB drive 
>>> booted!  However, the boot sequence died running the initramfs, just after 
>>> running dracut on the first partition of my HD [/dev/sda1].  I have aleady 
>>> seen my error in the grub.cfg file [scream].  This is going too be hard 
>>> work, but worth it in the end [?].  Just got to remember how grub.cfg is 
>>> coded..
>>>
>>
>> Maybe LILO is still an option?
>>
>>>

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Re: Trying to Install on USB drive using GRUB

[Jeffrey Sheinberg]

On Tue, Jun 25, 2019 at 09:59:54AM -0700, jacksprat wrote:

> menuentry 'Void GNU/Linux 4.18.17 [sda1]' {
>     insmod gzio
>     insmod part_msdos
>     insmod ext2
>     set root='hd0,msdos1'
               ^^^^^^^^^^^^
Try this:
      set root='(hd0,msdos1)'

Regards,

-- 
Jeffrey Sheinberg

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Re: Trying to Install on USB drive using GRUB

[jacksprat]

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This all happened because the hard drive on my shiny HP laptop was failing, 
and I decided to try and create a bootable USB drive with GRUB and and the 
Void Linux MUSL Live image.

As my route to finding a solution was a bit messy, I just wanted to let you 
know what eventually worked.

I started from Void Linux Live MUSL image, which I opted to load into RAM 
from USB, so that I could unmount the installation medium and remove.  This 
avoids getting confused with the target USB device:  a Samsung 250gb 860 
Evo SSD [SATA] connected via a STAR USB adaptor.
 
The void-installer script fails when running grub-install [it wanted UEFI], 
and my attempts to fix it failed.  However, as the basic system had been 
installed, I just needed to make it boot.

I ensured that the /dev/sdb1 partition was bootable by running fdisk 
/dev/sdb and use the "a" command to toggle the "bootable" flag.  

Next, I crafted a simple grub.cfg file:

  menuentry 'Void GNU/Linux MUSL 4.18.17 [sdb1]' {
    insmod gzio
    insmod part_msdos
    insmod ext2
    set root='hd0,msdos1'
    linux /boot/vmlinuz-4.18.17_1 root=/dev/sdb1 ro  
    initrd /boot/initramfs-4.18.17_1.img
  }

I don't understand "hd0" for the sdb device [why not "hd1"?], but only it 
works.  This is then installed with

  mkdir /usb
  mount /dev/sdb1 /usb
  grub-install --target=i386-pc --boot-directory=/usb/boot  /dev/sdb
  umount /usb

At this point the the system can be rebooted.

This all happened because the void-installer insisted that I use the crazy 
efi method, even though I have been using BIOS-based installs for ever.  On 
older [pre-efi] computers, the void-installer seems to just work.  Maybe I 
will embrace uefi one day [joke].




On Tuesday, June 25, 2019 at 10:25:30 AM UTC+1, jacksprat wrote:
>
> My laptop hard drive died, so as an interim solution, I wanted to install 
> Void Linux on a removable hard drive [/dev/sdb1].  
>
> I started with the current 64-bit MUSL live image.  The void-installer 
> script, run as root, fails to complete, complaining about expecting to find 
> an efi setup.  Rather than get involved with efi , I tried
>
>   mkdir /usb
>   mount /dev/sdb1 /usb
>   <create /usb/boot/grub/grub.cfg with suitable menu item>
>   grub-install --target=i384-pc --boot-directory=/usb/boot  /dev/sdb
>   umount /usb
>
> which completed without errors.  However, on reboot, I get the grub menu 
> from the failed hard drive.
>
> I also ran fdisk on /dev/sdb to mark the partition bootable.  What have I 
> missed?  Thanks.
>
>

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