Lacking IOS XR knowledge for this... Please help

Hi,

Our company just bough a pair of ASR9903's shipped with 7.1.3 and I tried upgrading them to 7.4.1 with some complications...

So here it goes...

These are these filesystems present:

RP/0/RP0/CPU0:ios#show filesystem
File Systems:

Size(b) Free(b) Type Flags Prefixes

3796250624 3788713984 harddisk rw harddiska:

4060278784 4050333696 flash-disk rw disk0:

20507914240 20159877120 flash-disk rw apphost:

23653642240 23584514048 harddisk rw harddisk:

0 0 network rw tftp:

0 0 network rw ftp:

1015304192 1012920320 flash rw /misc/config

3796250624 3788713984 harddisk rw harddiskb:

I tried upgrading according to the official procedure provided from Cisco and once i made the TAR-file, mounted it and began upgrading the router crashed and now is spamming me that /misc/config disk is full and needs urgent attention.

I go into that folder and see my .tar file there so i went ahead and tried to remove it:

RP/0/RP0/CPU0:ios#delete /misc/config/7.4.1-iso-and-rpms.tar

Mon Sep 27 13:38:04.494 GMT-2
delete : /misc/config/7.4.1-iso-and-rpms.tar : path outside filesystem disallowing access

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I cannot remove the file that is clogging my /misc/config drive (and currently has 0bytes free)

After some troubleshooting i noticed i also cannot create folders on that specifik disk on the other (currently un-upgraded router) with the same error message)

What am I missing here? Why can't i modify any files hosted in /misc/config?
Is this possible to solve myself?

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Help greatly appreciated.