Booting with syslinux not possible

Booting with syslinux not possible

[KC]

I do not know if people her are aware of it, but just in case I thought 
it is worth mentioning that currently it is not possible to boot with 
Syslinux bootloader, if the boot partition is on BTRFS.

Perhaps it's worth adding to the wiki.

Re: Booting with syslinux not possible

[Hugo Mills]

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On Fri, Jan 31, 2014 at 08:46:10PM +0100, KC wrote:
> I do not know if people her are aware of it, but just in case I
> thought it is worth mentioning that currently it is not possible to
> boot with Syslinux bootloader, if the boot partition is on BTRFS.
> 
> Perhaps it's worth adding to the wiki.

   Are you certain? I've definitely had it working late last year. You
can't boot from a multi-device filesystem with it, but a single-device
FS worked fine for me.

   Hugo.

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Re: Booting with syslinux not possible

[Alex]

Sorry KC:

All my VM's are on syslinux (actually extlinux) and btrfs:
   Device Boot      Start         End      Blocks   Id  System
/dev/vda1   *        2048     7938047     3968000   83  Linux
/dev/vda2         7938048     8388607      225280   82  Linux swap / Solaris

root@<VM> ~ # ll /boot
total 19452
-rw-r--r-- 1 root root  2319932 Jan 21 06:12 System.map-3.12-1-amd64
-rw-r--r-- 1 root root   149029 Jan 21 06:12 config-3.12-1-amd64
drwxr-xr-x 1 root root      176 Jan 28 22:32 extlinux/
-rw-r--r-- 1 root root 14240605 Jan 28 22:32 initrd.img-3.12-1-amd64
-rw-r--r-- 1 root root   176764 Nov 13  2011 memtest86+.bin
-rw-r--r-- 1 root root   178944 Nov 13  2011 memtest86+_multiboot.bin
-rw-r--r-- 1 root root  2842064 Jan 21 06:08 vmlinuz-3.12-1-amd64
root@china ~ #  

Occasionally I get excited and decide to fix it 'til it breaks (usually I
turn compression on, and /boot can't be accessed), but it's been working
fine for a few years now.

Kind regards.

Al.

Re: Booting with syslinux not possible

[Blaz Balon]

I also had some problems with syslinux.

For me it only works if I put boot folder to root of btrfs.
Didn't have a chance to do more test, but I copied /boot from default 
subvolume to subvolume 0 and it boots OK.

----------
regards
Blaz Balon

On 01/31/2014 11:00 PM, Alex wrote:
> Sorry KC:
>
> All my VM's are on syslinux (actually extlinux) and btrfs:
>     Device Boot      Start         End      Blocks   Id  System
> /dev/vda1   *        2048     7938047     3968000   83  Linux
> /dev/vda2         7938048     8388607      225280   82  Linux swap / Solaris
>
> root@<VM> ~ # ll /boot
> total 19452
> -rw-r--r-- 1 root root  2319932 Jan 21 06:12 System.map-3.12-1-amd64
> -rw-r--r-- 1 root root   149029 Jan 21 06:12 config-3.12-1-amd64
> drwxr-xr-x 1 root root      176 Jan 28 22:32 extlinux/
> -rw-r--r-- 1 root root 14240605 Jan 28 22:32 initrd.img-3.12-1-amd64
> -rw-r--r-- 1 root root   176764 Nov 13  2011 memtest86+.bin
> -rw-r--r-- 1 root root   178944 Nov 13  2011 memtest86+_multiboot.bin
> -rw-r--r-- 1 root root  2842064 Jan 21 06:08 vmlinuz-3.12-1-amd64
> root@china ~ #
>
> Occasionally I get excited and decide to fix it 'til it breaks (usually I
> turn compression on, and /boot can't be accessed), but it's been working
> fine for a few years now.
>
> Kind regards.
>
> Al.
>
>
>
>
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Re: Booting with syslinux not possible

[Alex]

Blaz Balon <blaz.balon <at> laly.si> writes:

> 
> I also had some problems with syslinux.
> 
> For me it only works if I put boot folder to root of btrfs.
> Didn't have a chance to do more test, but I copied /boot from default 
> subvolume to subvolume 0 and it boots OK.

Not sure I understand your /boot comment. I have some /boots on the main
btrfs partition and some mounted ext(x)s (can't remember, don't care).

I have quite an (overly) complicated setup. All major directories are
subvols eg. /etc /usr etc so that I can snapshot at almost every level. if
you create the subvol you want as a tree, debootstrap (Debian) and git clone
the stages (funtoo) are quite happy, but I guess you know that.

Transforming from standard directory to subvol is easy with any live distro
(sysrescuecd).

Re: Booting with syslinux not possible

[Duncan]

Alex posted on Tue, 04 Feb 2014 17:19:09 +0000 as excerpted:

> I have quite an (overly) complicated setup.

I had to chuckle at that one.  Fits my setup to a "T", altho they're 
different complications than yours.  I'll have to remember it the next 
time I find a fitting context to use it! =:^)

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

Re: Booting with syslinux not possible

[Alex]

Duncan <1i5t5.duncan <at> cox.net> writes:

> 
> Alex posted on Tue, 04 Feb 2014 17:19:09 +0000 as excerpted:
> 
> > I have quite an (overly) complicated setup.
> 
> I had to chuckle at that one.  Fits my setup to a "T", altho they're 
> different complications than yours.  I'll have to remember it the next 
> time I find a fitting context to use it! =:^)
> 


Pretty shiny things. ;-)
Kind regards.

Re: Booting with syslinux not possible

[Chris Murphy]

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Use extlinux, variant of syslinux.ÿôèº{.nÇ+‰·Ÿ®‰­†+%ŠËÿ±éݶ\x17¥Šwÿº{.nÇ+‰·¥Š{±ý»k~ÏâžØ^n‡r¡ö¦zË\x1aëh™¨è­Ú&£ûàz¿äz¹Þ—ú+€Ê+zf£¢·hšˆ§~†­†Ûiÿÿïêÿ‘êçz_è®\x0fæj:+v‰¨þ)ߣøm

Re: Booting with syslinux not possible

[Chris Murphy]

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Use extlinux, variant of syslinux.


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