[Bug 1283830] Re: win8.1+winxp+linux: winxp don't detected by update-grub

[Fred Palmer]

Not grub issue.
Windows only has boot files in one NTFS primary partition with boot flag.
It looks like you may have run Boot-Repair which copied boot files from sda1 to sda2.
But your XP install probably has no boot files in it for os-prober to find.
If all installs of Windows are on primary partitions you can move boot flag to that install and run Windows repairs to add the correct boot files for Widnows.
Then os-prober can find it.

Otherwise it is a two step boot process as Windows adds all installs to BCD and from grub you boot Windows, then from Windows choose which Windows to boot.
Installing XP after Windows 8 may be another Windows issue also as XP cannot add 8 to its boot.ini. But updating Windows 8 shoudl then add XP to BCD to boot from Windows 8.

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Title:
  win8.1+winxp+linux: winxp don't detected by update-grub

Status in grub2 package in Ubuntu:
  New

Bug description:
  on xubuntu 13.10 i have:

  /etc/grub.d$ update-grub -v
  grub-mkconfig (GRUB) 2.00-19ubuntu2.1

  /etc/grub.d$ ls -la
  totale 100
  drwxr-xr-x   2 root root  4096 nov 12 23:16 .
  drwxr-xr-x 158 root root 12288 feb 23 22:32 ..
  -rwxr-xr-x   1 root root  7850 ott 23 22:44 00_header
  -rwxr-xr-x   1 root root  5949 ago 15  2013 05_debian_theme
  -rwxr-xr-x   1 root root 11479 ott 23 22:44 10_linux
  -rwxr-xr-x   1 root root 10976 ott 14  2012 11_os-prober
  -rwxr-xr-x   1 root root 10258 ott 14  2012 20_linux_xen
  -rwxr-xr-x   1 root root  1798 giu 17  2013 20_memtest86+
  -rwxr-xr-x   1 root root 11531 ott 23 22:44 30_os-prober
  -rwxr-xr-x   1 root root  1426 ott 14  2012 30_uefi-firmware
  -rwxr-xr-x   1 root root   214 ott 14  2012 40_custom
  -rwxr-xr-x   1 root root   216 ott 14  2012 41_custom
  -rw-r--r--   1 root root   483 ott 14  2012 README

  
  root at xubuntu:/# fdisk -l

  Disk /dev/sda: 120.0 GB, 120034123776 bytes
  255 heads, 63 sectors/track, 14593 cylinders, total 234441648 sectors
  Units = sectors of 1 * 512 = 512 bytes
  Sector size (logical/physical): 512 bytes / 512 bytes
  I/O size (minimum/optimal): 512 bytes / 512 bytes
  Disk identifier: 0x6f9a289f

     Device Boot      Start         End      Blocks   Id  System
  /dev/sda1   *        2048      718847      358400    7  HPFS/NTFS/exFAT
  /dev/sda2          718848   163839999    81560576    7  HPFS/NTFS/exFAT
  /dev/sda3       163840000   184319999    10240000    7  HPFS/NTFS/exFAT
  /dev/sda4       184322046   234440703    25059329    5  Extended
  /dev/sda5       184322048   230381567    23029760   83  Linux
  /dev/sda6       230383616   234440703     2028544   82  Linux swap / Solaris

  sda1 is windows 8.1 boot partition
  sda2 is windows 8.1 os
  sda3 is windows xp sp3
  sda5 xubuntu

  
  if i do: update-grub :

  root at xubuntu:/# update-grub
  Generating grub.cfg ...
  Found linux image: /boot/vmlinuz-3.11.0-15-generic
  Found initrd image: /boot/initrd.img-3.11.0-15-generic
  Found linux image: /boot/vmlinuz-3.11.0-14-generic
  Found initrd image: /boot/initrd.img-3.11.0-14-generic
  Found linux image: /boot/vmlinuz-3.11.0-13-generic
  Found linux image: /boot/vmlinuz-3.8.0-33-generic
  Found initrd image: /boot/initrd.img-3.8.0-33-generic
  Found linux image: /boot/vmlinuz-3.5.0-27-generic
  Found initrd image: /boot/initrd.img-3.5.0-27-generic
  Found Windows 8 (loader) on /dev/sda1
  Found memtest86+ image: /boot/memtest86+.bin
  Found Windows 8 (loader) on /dev/sda1
  done

  
  so windows xp is not found.

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