All,
Having a very strange problem. I created a CentOS 7 PV vm but could not get
pygrub to pick-up the grub entries. I did some fault finding and concluded that
`fsimage` was unable to find the grub.cfg.
I could start the vm as an HVM guest with no problem. I renamed the `grub2`
folder to be `grub2.x` and `cp -a` that back to `grub2`. pygrub/fsimage were
able to find the file after that. fsimage couldn't see grub2.x/grub.cfg.
I wrote small test case in python to illustrate the issue:
I can only think it is a bug in fsimage, or there is something very hidden
about that directory that is causing this.
Any suggestions would be most welcome,
Thanks,
Ian
import fsimagefs = fsimage.open('/dev/xen2/email', 1048576, "seclabel")if
fs.file_exists('/grub2.x/grub.cfg'): print "found"else: print "not found"if
fs.file_exists('/grub2/grub.cfg'): print "found"else: print "not found"
The results are:- # python ~/test.py not foundfound
(mounted locally, after an update, but same behaviour as previously. The
partition is on LVM and is formatted ext4)# ls -al grub2*grub2:total
52drwxr-xr-x. 6 root root 4096 May 31 02:39 .dr-xr-xr-x. 7 root root 4096 May
31 02:41 ..-rw-r--r--. 1 root root 86 Jan 10 23:32 device.mapdrwxr-xr-x. 2
root root 4096 Jan 10 23:32 fonts-rw-r--r--. 1 root root 4806 May 31 02:39
grub.cfg-rw-r--r--. 1 root root 4045 Jan 10 23:33
grub.cfg.1496194637.rpmsave-rw-r--r--. 1 root root 1024 May 31 02:39
grubenvdrwxr-xr-x. 2 root root 12288 Jan 10 23:32 i386-pcdrwxr-xr-x. 2 root
root 4096 Jan 10 23:32 localedrwxr-xr-x. 3 root root 4096 Jan 10 23:28
themes-rw-r--r--. 1 root root 0 May 31 02:13 xxxx
grub2.x:total 44drwxr-xr-x. 6 root root 4096 May 31 02:13 .dr-xr-xr-x. 7 root
root 4096 May 31 02:41 ..-rw-r--r--. 1 root root 86 Jan 10 23:32
device.mapdrwxr-xr-x. 2 root root 4096 Jan 10 23:32 fonts-rw-r--r--. 1 root
root 4045 Jan 10 23:33 grub.cfg-rw-r--r--. 1 root root 1024 Jan 10 23:33
grubenvdrwxr-xr-x. 2 root root 12288 Jan 10 23:32 i386-pcdrwxr-xr-x. 2 root
root 4096 Jan 10 23:32 localedrwxr-xr-x. 3 root root 4096 Jan 10 23:28
themes-rw-r--r--. 1 root root 0 May 31 02:13 xxxx
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